5753 lines
145 KiB
HTML
5753 lines
145 KiB
HTML
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Skip to content
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Changemaker Lite
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<span class="md-ellipsis">
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Scaling
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<form class="md-header__option" data-md-component="palette">
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<label class="md-header__button md-icon" title="Switch to light mode" for="__palette_1" hidden>
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="m17.75 4.09-2.53 1.94.91 3.06-2.63-1.81-2.63 1.81.91-3.06-2.53-1.94L12.44 4l1.06-3 1.06 3zm3.5 6.91-1.64 1.25.59 1.98-1.7-1.17-1.7 1.17.59-1.98L15.75 11l2.06-.05L18.5 9l.69 1.95zm-2.28 4.95c.83-.08 1.72 1.1 1.19 1.85-.32.45-.66.87-1.08 1.27C15.17 23 8.84 23 4.94 19.07c-3.91-3.9-3.91-10.24 0-14.14.4-.4.82-.76 1.27-1.08.75-.53 1.93.36 1.85 1.19-.27 2.86.69 5.83 2.89 8.02a9.96 9.96 0 0 0 8.02 2.89m-1.64 2.02a12.08 12.08 0 0 1-7.8-3.47c-2.17-2.19-3.33-5-3.49-7.82-2.81 3.14-2.7 7.96.31 10.98 3.02 3.01 7.84 3.12 10.98.31"/></svg>
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</form>
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<script>var palette=__md_get("__palette");if(palette&&palette.color){if("(prefers-color-scheme)"===palette.color.media){var media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']");palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent")}for(var[key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}</script>
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
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<nav class="md-search__options" aria-label="Search">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M18 16.08c-.76 0-1.44.3-1.96.77L8.91 12.7c.05-.23.09-.46.09-.7s-.04-.47-.09-.7l7.05-4.11c.54.5 1.25.81 2.04.81a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3c0 .24.04.47.09.7L8.04 9.81C7.5 9.31 6.79 9 6 9a3 3 0 0 0-3 3 3 3 0 0 0 3 3c.79 0 1.5-.31 2.04-.81l7.12 4.15c-.05.21-.08.43-.08.66 0 1.61 1.31 2.91 2.92 2.91s2.92-1.3 2.92-2.91A2.92 2.92 0 0 0 18 16.08"/></svg>
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</a>
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<button type="reset" class="md-search__icon md-icon" title="Clear" aria-label="Clear" tabindex="-1">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/></svg>
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</button>
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</nav>
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<div class="md-search__suggest" data-md-component="search-suggest"></div>
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</form>
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<div class="md-search__output">
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<div class="md-search__scrollwrap" tabindex="0" data-md-scrollfix>
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<div class="md-search-result" data-md-component="search-result">
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<div class="md-search-result__meta">
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Initializing search
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</div>
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<ol class="md-search-result__list" role="presentation"></ol>
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</div>
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</div>
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</div>
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</div>
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<div class="md-header__source">
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<a href="https://gitea.bnkops.com/admin/changemaker.lite" title="Go to repository" class="md-source" data-md-component="source">
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<div class="md-source__icon md-icon">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 7.1.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2025 Fonticons, Inc.--><path d="M439.6 236.1 244 40.5c-5.4-5.5-12.8-8.5-20.4-8.5s-15 3-20.4 8.4L162.5 81l51.5 51.5c27.1-9.1 52.7 16.8 43.4 43.7l49.7 49.7c34.2-11.8 61.2 31 35.5 56.7-26.5 26.5-70.2-2.9-56-37.3L240.3 199v121.9c25.3 12.5 22.3 41.8 9.1 55-6.4 6.4-15.2 10.1-24.3 10.1s-17.8-3.6-24.3-10.1c-17.6-17.6-11.1-46.9 11.2-56v-123c-20.8-8.5-24.6-30.7-18.6-45L142.6 101 8.5 235.1C3 240.6 0 247.9 0 255.5s3 15 8.5 20.4l195.6 195.7c5.4 5.4 12.7 8.4 20.4 8.4s15-3 20.4-8.4l194.7-194.7c5.4-5.4 8.4-12.8 8.4-20.4s-3-15-8.4-20.4"/></svg>
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</div>
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<div class="md-source__repository">
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changemaker.lite
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</div>
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</a>
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</div>
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</nav>
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<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
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<div class="md-grid">
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<ul class="md-tabs__list">
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<li class="md-tabs__item">
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<a href="../../.." class="md-tabs__link">
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Home
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<li class="md-tabs__item md-tabs__item--active">
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<a href="../../" class="md-tabs__link">
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V2 Documentation
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</a>
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</li>
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<li class="md-tabs__item">
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<a href="../../../phil/" class="md-tabs__link">
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Philosophy
|
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</a>
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</li>
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<li class="md-tabs__item">
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<a href="../../../v1/" class="md-tabs__link">
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V1 Documentation (Legacy)
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</a>
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</li>
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<li class="md-tabs__item">
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<a href="../../../blog/" class="md-tabs__link">
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Blog
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</a>
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</ul>
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</div>
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</nav>
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</header>
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<div class="md-container" data-md-component="container">
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<main class="md-main" data-md-component="main">
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<div class="md-main__inner md-grid">
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<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
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<div class="md-sidebar__scrollwrap">
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<div class="md-sidebar__inner">
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<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
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<a href="../../.." title="Changemaker Lite" class="md-nav__button md-logo" aria-label="Changemaker Lite" data-md-component="logo">
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<img src="../../../assets/logo.png" alt="logo">
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</a>
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Changemaker Lite
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</label>
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<div class="md-nav__source">
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<a href="https://gitea.bnkops.com/admin/changemaker.lite" title="Go to repository" class="md-source" data-md-component="source">
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<div class="md-source__icon md-icon">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 7.1.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2025 Fonticons, Inc.--><path d="M439.6 236.1 244 40.5c-5.4-5.5-12.8-8.5-20.4-8.5s-15 3-20.4 8.4L162.5 81l51.5 51.5c27.1-9.1 52.7 16.8 43.4 43.7l49.7 49.7c34.2-11.8 61.2 31 35.5 56.7-26.5 26.5-70.2-2.9-56-37.3L240.3 199v121.9c25.3 12.5 22.3 41.8 9.1 55-6.4 6.4-15.2 10.1-24.3 10.1s-17.8-3.6-24.3-10.1c-17.6-17.6-11.1-46.9 11.2-56v-123c-20.8-8.5-24.6-30.7-18.6-45L142.6 101 8.5 235.1C3 240.6 0 247.9 0 255.5s3 15 8.5 20.4l195.6 195.7c5.4 5.4 12.7 8.4 20.4 8.4s15-3 20.4-8.4l194.7-194.7c5.4-5.4 8.4-12.8 8.4-20.4s-3-15-8.4-20.4"/></svg>
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</div>
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<div class="md-source__repository">
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changemaker.lite
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</div>
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</a>
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</div>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../.." class="md-nav__link">
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<span class="md-ellipsis">
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Home
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||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
V2 Documentation
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2" id="__nav_2_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
|
||
<label class="md-nav__title" for="__nav_2">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
V2 Documentation
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_2" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../getting-started/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Getting Started
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_2" id="__nav_2_2_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_2_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_2">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Getting Started
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../getting-started/quick-start/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Quick Start
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_3" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../architecture/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Architecture
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_3" id="__nav_2_3_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_3_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_3">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Architecture
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../architecture/dual-api/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Dual API System
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../architecture/authentication/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Authentication & Security
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_4" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../backend/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Backend
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_4" id="__nav_2_4_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_4_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_4">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Backend
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../backend/modules/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Modules
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../backend/services/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Services
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../backend/middleware/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Middleware
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../backend/utilities/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Utilities
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_5" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../frontend/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Frontend
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_5" id="__nav_2_5_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_5_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_5">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Frontend
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../frontend/components/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Components
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../frontend/layouts/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Layouts
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../frontend/pages/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Pages
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_6" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../database/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Database
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_6" id="__nav_2_6_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_6_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_6">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Database
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/schema/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Schema Overview
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/migrations/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Migrations
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/seeding/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Seeding
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/indexes/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Indexes
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../database/models/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Models
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_7" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../features/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Features
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_7" id="__nav_2_7_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_7_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_7">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Features
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../features/influence/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Influence
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../features/map/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Map
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../features/landing-pages/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Landing Pages
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../features/email-templates/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Email Templates
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../features/media/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Media
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../features/newsletter/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Newsletter
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../features/observability/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Observability
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../features/tunnel/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Tunnel
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2_8" checked>
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Deployment
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_8" id="__nav_2_8_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_8_label" aria-expanded="true">
|
||
<label class="md-nav__title" for="__nav_2_8">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Deployment
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../docker-compose/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Docker Compose
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../environment-variables/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Environment Variables
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../nginx/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Nginx Configuration
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../ssl-tls/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
SSL/TLS
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../tunneling/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Tunneling
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../monitoring-stack/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Monitoring Stack
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../healthchecks/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Health Checks
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--active">
|
||
|
||
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
|
||
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link md-nav__link--active" for="__toc">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Scaling
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<a href="./" class="md-nav__link md-nav__link--active">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Scaling
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
|
||
|
||
|
||
<nav class="md-nav md-nav--secondary" aria-label="On this page">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__title" for="__toc">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
On this page
|
||
</label>
|
||
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#overview" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Overview
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#database-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Database Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Database Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#read-replicas" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Read Replicas
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#connection-pooling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Connection Pooling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#api-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
API Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="API Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#multiple-api-containers" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Multiple API Containers
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#vertical-scaling-resource-limits" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Vertical Scaling (Resource Limits)
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#redis-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Redis Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Redis Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#redis-cluster-sharding" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Redis Cluster (Sharding)
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#redis-sentinel-high-availability" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Redis Sentinel (High Availability)
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#media-api-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Media API Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Media API Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#separate-media-containers" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Separate Media Containers
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#cdn-for-static-media" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
CDN for Static Media
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#frontend-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Frontend Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Frontend Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#cdn-for-static-assets" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
CDN for Static Assets
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#nginx-caching" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Nginx Caching
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#job-queue-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Job Queue Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Job Queue Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#multiple-bullmq-workers" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Multiple BullMQ Workers
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#monitoring-under-load" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Monitoring Under Load
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Monitoring Under Load">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#load-testing" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Load Testing
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#prometheus-metrics" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Prometheus Metrics
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#troubleshooting" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Troubleshooting
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Troubleshooting">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#high-cpu-usage" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
High CPU Usage
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#memory-leaks" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Memory Leaks
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#database-connection-exhaustion" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Database Connection Exhaustion
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#cost-optimization" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Cost Optimization
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Cost Optimization">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#resource-allocation" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Resource Allocation
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#autoscaling-docker-swarm" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Autoscaling (Docker Swarm)
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#related-documentation" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Related Documentation
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../backup-restore/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Backup & Restore
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_9" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../development/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Development
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_9" id="__nav_2_9_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_9_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_9">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Development
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../development/local-setup/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Local Setup
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../development/docker-workflow/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Docker Workflow
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../development/git-workflow/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Git Workflow
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../development/npm-commands/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
NPM Commands
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../development/migrations/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Migrations
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../development/typescript/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
TypeScript
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../development/testing/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Testing
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../development/debugging/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Debugging
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../development/code-style/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Code Style
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_10" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../api-reference/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
API Reference
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_10_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_10">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
API Reference
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_11" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../user-guides/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
User Guides
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_11" id="__nav_2_11_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_11_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_11">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
User Guides
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../user-guides/admin-guide/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Admin Guide
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../user-guides/campaign-manager-guide/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Campaign Manager Guide
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../user-guides/map-organizer-guide/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Map Organizer Guide
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../user-guides/content-editor-guide/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Content Editor Guide
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../user-guides/volunteer-guide/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Volunteer Guide
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_12" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../troubleshooting/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Troubleshooting
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_12" id="__nav_2_12_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_12_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_12">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Troubleshooting
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/faq/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
FAQ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/common-errors/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Common Errors
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/auth-issues/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Auth Issues
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/database-issues/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Database Issues
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/docker-issues/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Docker Issues
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/email-issues/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Email Issues
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/geocoding-issues/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Geocoding Issues
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/monitoring-issues/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Monitoring Issues
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/performance-optimization/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Performance Optimization
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_13" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../migration/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Migration
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_13" id="__nav_2_13_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_13_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_13">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Migration
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../migration/feature-parity/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Feature Parity
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../migration/breaking-changes/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Breaking Changes
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../migration/api-changes/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
API Changes
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../migration/data-migration/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Data Migration
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_2_14" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../contributing/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Contributing
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_2_14" id="__nav_2_14_label" tabindex="">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_2_14_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2_14">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
Contributing
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../contributing/development-setup/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Development Setup
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../contributing/code-of-conduct/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Code of Conduct
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../contributing/pull-requests/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Pull Requests
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../contributing/roadmap/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Roadmap
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../../phil/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Philosophy
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../../v1/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
V1 Documentation (Legacy)
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="../../../blog/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
Blog
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
|
||
<div class="md-sidebar__scrollwrap">
|
||
<div class="md-sidebar__inner">
|
||
|
||
|
||
|
||
|
||
<nav class="md-nav md-nav--secondary" aria-label="On this page">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__title" for="__toc">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
On this page
|
||
</label>
|
||
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#overview" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Overview
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#database-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Database Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Database Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#read-replicas" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Read Replicas
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#connection-pooling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Connection Pooling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#api-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
API Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="API Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#multiple-api-containers" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Multiple API Containers
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#vertical-scaling-resource-limits" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Vertical Scaling (Resource Limits)
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#redis-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Redis Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Redis Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#redis-cluster-sharding" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Redis Cluster (Sharding)
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#redis-sentinel-high-availability" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Redis Sentinel (High Availability)
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#media-api-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Media API Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Media API Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#separate-media-containers" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Separate Media Containers
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#cdn-for-static-media" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
CDN for Static Media
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#frontend-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Frontend Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Frontend Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#cdn-for-static-assets" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
CDN for Static Assets
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#nginx-caching" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Nginx Caching
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#job-queue-scaling" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Job Queue Scaling
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Job Queue Scaling">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#multiple-bullmq-workers" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Multiple BullMQ Workers
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#monitoring-under-load" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Monitoring Under Load
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Monitoring Under Load">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#load-testing" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Load Testing
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#prometheus-metrics" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Prometheus Metrics
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#troubleshooting" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Troubleshooting
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Troubleshooting">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#high-cpu-usage" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
High CPU Usage
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#memory-leaks" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Memory Leaks
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#database-connection-exhaustion" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Database Connection Exhaustion
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
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</li>
|
||
|
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<li class="md-nav__item">
|
||
<a href="#cost-optimization" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Cost Optimization
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Cost Optimization">
|
||
<ul class="md-nav__list">
|
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|
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<li class="md-nav__item">
|
||
<a href="#resource-allocation" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Resource Allocation
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#autoscaling-docker-swarm" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
Autoscaling (Docker Swarm)
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
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</ul>
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||
</nav>
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</li>
|
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<li class="md-nav__item">
|
||
<a href="#related-documentation" class="md-nav__link">
|
||
<span class="md-ellipsis">
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||
Related Documentation
|
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</span>
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</a>
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</li>
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</nav>
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|
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|
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<nav class="md-path" aria-label="Navigation" >
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Home
|
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<li class="md-path__item">
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<span class="md-ellipsis">
|
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V2 Documentation
|
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</span>
|
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|
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</a>
|
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</li>
|
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<li class="md-path__item">
|
||
<a href="../" class="md-path__link">
|
||
|
||
<span class="md-ellipsis">
|
||
Deployment
|
||
</span>
|
||
|
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</a>
|
||
</li>
|
||
|
||
|
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|
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|
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<article class="md-content__inner md-typeset">
|
||
|
||
|
||
|
||
|
||
|
||
<a href="https://gitea.bnkops.com/admin/changemaker.lite/src/branch/main/mkdocs/docs/v2/deployment/scaling.md" title="Edit this page" class="md-content__button md-icon" rel="edit">
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||
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||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M10 20H6V4h7v5h5v3.1l2-2V8l-6-6H6c-1.1 0-2 .9-2 2v16c0 1.1.9 2 2 2h4zm10.2-7c.1 0 .3.1.4.2l1.3 1.3c.2.2.2.6 0 .8l-1 1-2.1-2.1 1-1c.1-.1.2-.2.4-.2m0 3.9L14.1 23H12v-2.1l6.1-6.1z"/></svg>
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||
</a>
|
||
|
||
|
||
|
||
|
||
|
||
<a href="https://gitea.bnkops.com/admin/changemaker.lite/src/branch/main/mkdocs/docs/v2/deployment/scaling.md" title="View source of this page" class="md-content__button md-icon">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 18c.56 0 1 .44 1 1s-.44 1-1 1-1-.44-1-1 .44-1 1-1m0-3c-2.73 0-5.06 1.66-6 4 .94 2.34 3.27 4 6 4s5.06-1.66 6-4c-.94-2.34-3.27-4-6-4m0 6.5a2.5 2.5 0 0 1-2.5-2.5 2.5 2.5 0 0 1 2.5-2.5 2.5 2.5 0 0 1 2.5 2.5 2.5 2.5 0 0 1-2.5 2.5M9.27 20H6V4h7v5h5v4.07c.7.08 1.36.25 2 .49V8l-6-6H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h4.5a8.2 8.2 0 0 1-1.23-2"/></svg>
|
||
</a>
|
||
|
||
|
||
|
||
<h1 id="horizontal-scaling-strategies">Horizontal Scaling Strategies<a class="headerlink" href="#horizontal-scaling-strategies" title="Permanent link">¶</a></h1>
|
||
<h2 id="overview">Overview<a class="headerlink" href="#overview" title="Permanent link">¶</a></h2>
|
||
<p>Changemaker Lite V2 can scale horizontally to handle increased traffic and data volume. This guide covers strategies for scaling each component.</p>
|
||
<p><strong>When to Scale:</strong>
|
||
- API response time >500ms (P95)
|
||
- CPU usage >70% sustained
|
||
- Memory usage >80% sustained
|
||
- Database connection pool exhausted
|
||
- Job queue backing up (>100 jobs waiting)</p>
|
||
<hr />
|
||
<h2 id="database-scaling">Database Scaling<a class="headerlink" href="#database-scaling" title="Permanent link">¶</a></h2>
|
||
<h3 id="read-replicas">Read Replicas<a class="headerlink" href="#read-replicas" title="Permanent link">¶</a></h3>
|
||
<p><strong>PostgreSQL streaming replication</strong> for read-heavy workloads.</p>
|
||
<p><strong>Setup</strong> (docker-compose.yml):
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-0-1"><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="nt">v2-postgres-replica</span><span class="p">:</span>
|
||
</span><span id="__span-0-2"><a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">postgres:16-alpine</span>
|
||
</span><span id="__span-0-3"><a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a><span class="w"> </span><span class="nt">container_name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">changemaker-v2-postgres-replica</span>
|
||
</span><span id="__span-0-4"><a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="w"> </span><span class="nt">environment</span><span class="p">:</span>
|
||
</span><span id="__span-0-5"><a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a><span class="w"> </span><span class="nt">POSTGRES_USER</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">replicator</span>
|
||
</span><span id="__span-0-6"><a id="__codelineno-0-6" name="__codelineno-0-6" href="#__codelineno-0-6"></a><span class="w"> </span><span class="nt">POSTGRES_PASSWORD</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">${REPLICA_PASSWORD}</span>
|
||
</span><span id="__span-0-7"><a id="__codelineno-0-7" name="__codelineno-0-7" href="#__codelineno-0-7"></a><span class="w"> </span><span class="nt">command</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">|</span>
|
||
</span><span id="__span-0-8"><a id="__codelineno-0-8" name="__codelineno-0-8" href="#__codelineno-0-8"></a><span class="w"> </span><span class="no">postgres -c wal_level=replica</span>
|
||
</span><span id="__span-0-9"><a id="__codelineno-0-9" name="__codelineno-0-9" href="#__codelineno-0-9"></a><span class="w"> </span><span class="no">-c hot_standby=on</span>
|
||
</span><span id="__span-0-10"><a id="__codelineno-0-10" name="__codelineno-0-10" href="#__codelineno-0-10"></a><span class="w"> </span><span class="no">-c max_wal_senders=3</span>
|
||
</span><span id="__span-0-11"><a id="__codelineno-0-11" name="__codelineno-0-11" href="#__codelineno-0-11"></a><span class="w"> </span><span class="no">-c hot_standby_feedback=on</span>
|
||
</span><span id="__span-0-12"><a id="__codelineno-0-12" name="__codelineno-0-12" href="#__codelineno-0-12"></a><span class="w"> </span><span class="nt">volumes</span><span class="p">:</span>
|
||
</span><span id="__span-0-13"><a id="__codelineno-0-13" name="__codelineno-0-13" href="#__codelineno-0-13"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">v2-postgres-replica-data:/var/lib/postgresql/data</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Primary config</strong> (postgresql.conf):
|
||
<div class="language-ini highlight"><pre><span></span><code><span id="__span-1-1"><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a><span class="na">wal_level</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">replica</span>
|
||
</span><span id="__span-1-2"><a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a><span class="na">max_wal_senders</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">3</span>
|
||
</span><span id="__span-1-3"><a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a><span class="na">wal_keep_size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">64MB</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Replication user</strong>:
|
||
<div class="language-sql highlight"><pre><span></span><code><span id="__span-2-1"><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="k">CREATE</span><span class="w"> </span><span class="k">ROLE</span><span class="w"> </span><span class="n">replicator</span><span class="w"> </span><span class="k">WITH</span><span class="w"> </span><span class="n">REPLICATION</span><span class="w"> </span><span class="n">LOGIN</span><span class="w"> </span><span class="n">PASSWORD</span><span class="w"> </span><span class="s1">'replica-password'</span><span class="p">;</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Prisma read replica</strong> (planned feature):
|
||
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-3-1"><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a><span class="c1">// Future: Prisma read replicas</span>
|
||
</span><span id="__span-3-2"><a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">prisma</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nx">PrismaClient</span><span class="p">({</span>
|
||
</span><span id="__span-3-3"><a id="__codelineno-3-3" name="__codelineno-3-3" href="#__codelineno-3-3"></a><span class="w"> </span><span class="nx">datasources</span><span class="o">:</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-3-4"><a id="__codelineno-3-4" name="__codelineno-3-4" href="#__codelineno-3-4"></a><span class="w"> </span><span class="nx">db</span><span class="o">:</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-3-5"><a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a><span class="w"> </span><span class="nx">url</span><span class="o">:</span><span class="w"> </span><span class="kt">process.env.DATABASE_URL</span><span class="p">,</span><span class="w"> </span><span class="c1">// Primary (writes)</span>
|
||
</span><span id="__span-3-6"><a id="__codelineno-3-6" name="__codelineno-3-6" href="#__codelineno-3-6"></a><span class="w"> </span><span class="nx">replicaUrl</span><span class="o">:</span><span class="w"> </span><span class="kt">process.env.REPLICA_URL</span><span class="p">,</span><span class="w"> </span><span class="c1">// Replica (reads)</span>
|
||
</span><span id="__span-3-7"><a id="__codelineno-3-7" name="__codelineno-3-7" href="#__codelineno-3-7"></a><span class="w"> </span><span class="p">},</span>
|
||
</span><span id="__span-3-8"><a id="__codelineno-3-8" name="__codelineno-3-8" href="#__codelineno-3-8"></a><span class="w"> </span><span class="p">},</span>
|
||
</span><span id="__span-3-9"><a id="__codelineno-3-9" name="__codelineno-3-9" href="#__codelineno-3-9"></a><span class="p">});</span>
|
||
</span></code></pre></div></p>
|
||
<hr />
|
||
<h3 id="connection-pooling">Connection Pooling<a class="headerlink" href="#connection-pooling" title="Permanent link">¶</a></h3>
|
||
<p><strong>PgBouncer</strong> for connection pooling.</p>
|
||
<p><strong>docker-compose.yml</strong>:
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-4-1"><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a><span class="nt">pgbouncer</span><span class="p">:</span>
|
||
</span><span id="__span-4-2"><a id="__codelineno-4-2" name="__codelineno-4-2" href="#__codelineno-4-2"></a><span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">pgbouncer/pgbouncer:latest</span>
|
||
</span><span id="__span-4-3"><a id="__codelineno-4-3" name="__codelineno-4-3" href="#__codelineno-4-3"></a><span class="w"> </span><span class="nt">container_name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">pgbouncer-changemaker</span>
|
||
</span><span id="__span-4-4"><a id="__codelineno-4-4" name="__codelineno-4-4" href="#__codelineno-4-4"></a><span class="w"> </span><span class="nt">environment</span><span class="p">:</span>
|
||
</span><span id="__span-4-5"><a id="__codelineno-4-5" name="__codelineno-4-5" href="#__codelineno-4-5"></a><span class="w"> </span><span class="nt">DATABASES_HOST</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">changemaker-v2-postgres</span>
|
||
</span><span id="__span-4-6"><a id="__codelineno-4-6" name="__codelineno-4-6" href="#__codelineno-4-6"></a><span class="w"> </span><span class="nt">DATABASES_PORT</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">5432</span>
|
||
</span><span id="__span-4-7"><a id="__codelineno-4-7" name="__codelineno-4-7" href="#__codelineno-4-7"></a><span class="w"> </span><span class="nt">DATABASES_USER</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">changemaker</span>
|
||
</span><span id="__span-4-8"><a id="__codelineno-4-8" name="__codelineno-4-8" href="#__codelineno-4-8"></a><span class="w"> </span><span class="nt">DATABASES_PASSWORD</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">${V2_POSTGRES_PASSWORD}</span>
|
||
</span><span id="__span-4-9"><a id="__codelineno-4-9" name="__codelineno-4-9" href="#__codelineno-4-9"></a><span class="w"> </span><span class="nt">DATABASES_DBNAME</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">changemaker_v2</span>
|
||
</span><span id="__span-4-10"><a id="__codelineno-4-10" name="__codelineno-4-10" href="#__codelineno-4-10"></a><span class="w"> </span><span class="nt">POOL_MODE</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">transaction</span>
|
||
</span><span id="__span-4-11"><a id="__codelineno-4-11" name="__codelineno-4-11" href="#__codelineno-4-11"></a><span class="w"> </span><span class="nt">MAX_CLIENT_CONN</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">1000</span>
|
||
</span><span id="__span-4-12"><a id="__codelineno-4-12" name="__codelineno-4-12" href="#__codelineno-4-12"></a><span class="w"> </span><span class="nt">DEFAULT_POOL_SIZE</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">20</span>
|
||
</span><span id="__span-4-13"><a id="__codelineno-4-13" name="__codelineno-4-13" href="#__codelineno-4-13"></a><span class="w"> </span><span class="nt">ports</span><span class="p">:</span>
|
||
</span><span id="__span-4-14"><a id="__codelineno-4-14" name="__codelineno-4-14" href="#__codelineno-4-14"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="s">"6432:6432"</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Update DATABASE_URL</strong>:
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-5-1"><a id="__codelineno-5-1" name="__codelineno-5-1" href="#__codelineno-5-1"></a><span class="c1"># Before (direct)</span>
|
||
</span><span id="__span-5-2"><a id="__codelineno-5-2" name="__codelineno-5-2" href="#__codelineno-5-2"></a><span class="nv">DATABASE_URL</span><span class="o">=</span>postgresql://changemaker:pass@changemaker-v2-postgres:5432/changemaker_v2
|
||
</span><span id="__span-5-3"><a id="__codelineno-5-3" name="__codelineno-5-3" href="#__codelineno-5-3"></a>
|
||
</span><span id="__span-5-4"><a id="__codelineno-5-4" name="__codelineno-5-4" href="#__codelineno-5-4"></a><span class="c1"># After (pooled)</span>
|
||
</span><span id="__span-5-5"><a id="__codelineno-5-5" name="__codelineno-5-5" href="#__codelineno-5-5"></a><span class="nv">DATABASE_URL</span><span class="o">=</span>postgresql://changemaker:pass@pgbouncer:6432/changemaker_v2
|
||
</span></code></pre></div></p>
|
||
<p><strong>Benefits</strong>:
|
||
- Handles 1000+ client connections with only 20 PostgreSQL connections
|
||
- Reduces connection overhead
|
||
- Prevents "too many connections" errors</p>
|
||
<hr />
|
||
<h2 id="api-scaling">API Scaling<a class="headerlink" href="#api-scaling" title="Permanent link">¶</a></h2>
|
||
<h3 id="multiple-api-containers">Multiple API Containers<a class="headerlink" href="#multiple-api-containers" title="Permanent link">¶</a></h3>
|
||
<p><strong>docker-compose.yml</strong>:
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-6-1"><a id="__codelineno-6-1" name="__codelineno-6-1" href="#__codelineno-6-1"></a><span class="nt">api</span><span class="p">:</span>
|
||
</span><span id="__span-6-2"><a id="__codelineno-6-2" name="__codelineno-6-2" href="#__codelineno-6-2"></a><span class="w"> </span><span class="c1"># ... existing config</span>
|
||
</span><span id="__span-6-3"><a id="__codelineno-6-3" name="__codelineno-6-3" href="#__codelineno-6-3"></a><span class="w"> </span><span class="nt">deploy</span><span class="p">:</span>
|
||
</span><span id="__span-6-4"><a id="__codelineno-6-4" name="__codelineno-6-4" href="#__codelineno-6-4"></a><span class="w"> </span><span class="nt">replicas</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">3</span><span class="w"> </span><span class="c1"># Run 3 API containers</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Or manual scaling</strong>:
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-7-1"><a id="__codelineno-7-1" name="__codelineno-7-1" href="#__codelineno-7-1"></a>docker<span class="w"> </span>compose<span class="w"> </span>up<span class="w"> </span>-d<span class="w"> </span>--scale<span class="w"> </span><span class="nv">api</span><span class="o">=</span><span class="m">3</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Load balancer</strong> (Nginx upstream):
|
||
<div class="language-nginx highlight"><pre><span></span><code><span id="__span-8-1"><a id="__codelineno-8-1" name="__codelineno-8-1" href="#__codelineno-8-1"></a><span class="k">upstream</span><span class="w"> </span><span class="s">api_backend</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-8-2"><a id="__codelineno-8-2" name="__codelineno-8-2" href="#__codelineno-8-2"></a><span class="w"> </span><span class="kn">least_conn</span><span class="p">;</span><span class="w"> </span><span class="c1"># Load balancing algorithm</span>
|
||
</span><span id="__span-8-3"><a id="__codelineno-8-3" name="__codelineno-8-3" href="#__codelineno-8-3"></a><span class="w"> </span><span class="kn">server</span><span class="w"> </span><span class="n">changemaker-v2-api-1</span><span class="p">:</span><span class="mi">4000</span><span class="p">;</span>
|
||
</span><span id="__span-8-4"><a id="__codelineno-8-4" name="__codelineno-8-4" href="#__codelineno-8-4"></a><span class="w"> </span><span class="kn">server</span><span class="w"> </span><span class="n">changemaker-v2-api-2</span><span class="p">:</span><span class="mi">4000</span><span class="p">;</span>
|
||
</span><span id="__span-8-5"><a id="__codelineno-8-5" name="__codelineno-8-5" href="#__codelineno-8-5"></a><span class="w"> </span><span class="kn">server</span><span class="w"> </span><span class="n">changemaker-v2-api-3</span><span class="p">:</span><span class="mi">4000</span><span class="p">;</span>
|
||
</span><span id="__span-8-6"><a id="__codelineno-8-6" name="__codelineno-8-6" href="#__codelineno-8-6"></a><span class="p">}</span>
|
||
</span><span id="__span-8-7"><a id="__codelineno-8-7" name="__codelineno-8-7" href="#__codelineno-8-7"></a>
|
||
</span><span id="__span-8-8"><a id="__codelineno-8-8" name="__codelineno-8-8" href="#__codelineno-8-8"></a><span class="k">server</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-8-9"><a id="__codelineno-8-9" name="__codelineno-8-9" href="#__codelineno-8-9"></a><span class="w"> </span><span class="kn">location</span><span class="w"> </span><span class="s">/api/</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-8-10"><a id="__codelineno-8-10" name="__codelineno-8-10" href="#__codelineno-8-10"></a><span class="w"> </span><span class="kn">proxy_pass</span><span class="w"> </span><span class="s">http://api_backend</span><span class="p">;</span>
|
||
</span><span id="__span-8-11"><a id="__codelineno-8-11" name="__codelineno-8-11" href="#__codelineno-8-11"></a><span class="w"> </span><span class="p">}</span>
|
||
</span><span id="__span-8-12"><a id="__codelineno-8-12" name="__codelineno-8-12" href="#__codelineno-8-12"></a><span class="p">}</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Session affinity</strong> (sticky sessions):
|
||
<div class="language-nginx highlight"><pre><span></span><code><span id="__span-9-1"><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a><span class="k">upstream</span><span class="w"> </span><span class="s">api_backend</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-9-2"><a id="__codelineno-9-2" name="__codelineno-9-2" href="#__codelineno-9-2"></a><span class="w"> </span><span class="kn">ip_hash</span><span class="p">;</span><span class="w"> </span><span class="c1"># Route same IP to same backend</span>
|
||
</span><span id="__span-9-3"><a id="__codelineno-9-3" name="__codelineno-9-3" href="#__codelineno-9-3"></a><span class="w"> </span><span class="kn">server</span><span class="w"> </span><span class="n">changemaker-v2-api-1</span><span class="p">:</span><span class="mi">4000</span><span class="p">;</span>
|
||
</span><span id="__span-9-4"><a id="__codelineno-9-4" name="__codelineno-9-4" href="#__codelineno-9-4"></a><span class="w"> </span><span class="kn">server</span><span class="w"> </span><span class="n">changemaker-v2-api-2</span><span class="p">:</span><span class="mi">4000</span><span class="p">;</span>
|
||
</span><span id="__span-9-5"><a id="__codelineno-9-5" name="__codelineno-9-5" href="#__codelineno-9-5"></a><span class="p">}</span>
|
||
</span></code></pre></div></p>
|
||
<hr />
|
||
<h3 id="vertical-scaling-resource-limits">Vertical Scaling (Resource Limits)<a class="headerlink" href="#vertical-scaling-resource-limits" title="Permanent link">¶</a></h3>
|
||
<p><strong>Increase container resources</strong>:
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-10-1"><a id="__codelineno-10-1" name="__codelineno-10-1" href="#__codelineno-10-1"></a><span class="nt">api</span><span class="p">:</span>
|
||
</span><span id="__span-10-2"><a id="__codelineno-10-2" name="__codelineno-10-2" href="#__codelineno-10-2"></a><span class="w"> </span><span class="nt">deploy</span><span class="p">:</span>
|
||
</span><span id="__span-10-3"><a id="__codelineno-10-3" name="__codelineno-10-3" href="#__codelineno-10-3"></a><span class="w"> </span><span class="nt">resources</span><span class="p">:</span>
|
||
</span><span id="__span-10-4"><a id="__codelineno-10-4" name="__codelineno-10-4" href="#__codelineno-10-4"></a><span class="w"> </span><span class="nt">limits</span><span class="p">:</span>
|
||
</span><span id="__span-10-5"><a id="__codelineno-10-5" name="__codelineno-10-5" href="#__codelineno-10-5"></a><span class="w"> </span><span class="nt">cpus</span><span class="p">:</span><span class="w"> </span><span class="s">'4'</span><span class="w"> </span><span class="c1"># 4 CPU cores</span>
|
||
</span><span id="__span-10-6"><a id="__codelineno-10-6" name="__codelineno-10-6" href="#__codelineno-10-6"></a><span class="w"> </span><span class="nt">memory</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">4G</span><span class="w"> </span><span class="c1"># 4GB RAM</span>
|
||
</span><span id="__span-10-7"><a id="__codelineno-10-7" name="__codelineno-10-7" href="#__codelineno-10-7"></a><span class="w"> </span><span class="nt">reservations</span><span class="p">:</span>
|
||
</span><span id="__span-10-8"><a id="__codelineno-10-8" name="__codelineno-10-8" href="#__codelineno-10-8"></a><span class="w"> </span><span class="nt">cpus</span><span class="p">:</span><span class="w"> </span><span class="s">'1'</span>
|
||
</span><span id="__span-10-9"><a id="__codelineno-10-9" name="__codelineno-10-9" href="#__codelineno-10-9"></a><span class="w"> </span><span class="nt">memory</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">1G</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Node.js memory limit</strong>:
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-11-1"><a id="__codelineno-11-1" name="__codelineno-11-1" href="#__codelineno-11-1"></a><span class="nt">api</span><span class="p">:</span>
|
||
</span><span id="__span-11-2"><a id="__codelineno-11-2" name="__codelineno-11-2" href="#__codelineno-11-2"></a><span class="w"> </span><span class="nt">environment</span><span class="p">:</span>
|
||
</span><span id="__span-11-3"><a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">NODE_OPTIONS=--max-old-space-size=3072</span><span class="w"> </span><span class="c1"># 3GB heap</span>
|
||
</span></code></pre></div></p>
|
||
<hr />
|
||
<h2 id="redis-scaling">Redis Scaling<a class="headerlink" href="#redis-scaling" title="Permanent link">¶</a></h2>
|
||
<h3 id="redis-cluster-sharding">Redis Cluster (Sharding)<a class="headerlink" href="#redis-cluster-sharding" title="Permanent link">¶</a></h3>
|
||
<p><strong>For >100GB datasets</strong> or high throughput.</p>
|
||
<p><strong>docker-compose.yml</strong> (6-node cluster):
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-12-1"><a id="__codelineno-12-1" name="__codelineno-12-1" href="#__codelineno-12-1"></a><span class="nt">redis-cluster-1</span><span class="p">:</span>
|
||
</span><span id="__span-12-2"><a id="__codelineno-12-2" name="__codelineno-12-2" href="#__codelineno-12-2"></a><span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">redis:7-alpine</span>
|
||
</span><span id="__span-12-3"><a id="__codelineno-12-3" name="__codelineno-12-3" href="#__codelineno-12-3"></a><span class="w"> </span><span class="nt">command</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">redis-server --cluster-enabled yes --cluster-config-file nodes.conf</span>
|
||
</span><span id="__span-12-4"><a id="__codelineno-12-4" name="__codelineno-12-4" href="#__codelineno-12-4"></a>
|
||
</span><span id="__span-12-5"><a id="__codelineno-12-5" name="__codelineno-12-5" href="#__codelineno-12-5"></a><span class="c1"># ... repeat for redis-cluster-2 through redis-cluster-6</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Create cluster</strong>:
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-13-1"><a id="__codelineno-13-1" name="__codelineno-13-1" href="#__codelineno-13-1"></a>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-cluster-1<span class="w"> </span>redis-cli<span class="w"> </span>--cluster<span class="w"> </span>create<span class="w"> </span><span class="se">\</span>
|
||
</span><span id="__span-13-2"><a id="__codelineno-13-2" name="__codelineno-13-2" href="#__codelineno-13-2"></a><span class="w"> </span>redis-cluster-1:6379<span class="w"> </span><span class="se">\</span>
|
||
</span><span id="__span-13-3"><a id="__codelineno-13-3" name="__codelineno-13-3" href="#__codelineno-13-3"></a><span class="w"> </span>redis-cluster-2:6379<span class="w"> </span><span class="se">\</span>
|
||
</span><span id="__span-13-4"><a id="__codelineno-13-4" name="__codelineno-13-4" href="#__codelineno-13-4"></a><span class="w"> </span>redis-cluster-3:6379<span class="w"> </span><span class="se">\</span>
|
||
</span><span id="__span-13-5"><a id="__codelineno-13-5" name="__codelineno-13-5" href="#__codelineno-13-5"></a><span class="w"> </span>redis-cluster-4:6379<span class="w"> </span><span class="se">\</span>
|
||
</span><span id="__span-13-6"><a id="__codelineno-13-6" name="__codelineno-13-6" href="#__codelineno-13-6"></a><span class="w"> </span>redis-cluster-5:6379<span class="w"> </span><span class="se">\</span>
|
||
</span><span id="__span-13-7"><a id="__codelineno-13-7" name="__codelineno-13-7" href="#__codelineno-13-7"></a><span class="w"> </span>redis-cluster-6:6379<span class="w"> </span><span class="se">\</span>
|
||
</span><span id="__span-13-8"><a id="__codelineno-13-8" name="__codelineno-13-8" href="#__codelineno-13-8"></a><span class="w"> </span>--cluster-replicas<span class="w"> </span><span class="m">1</span>
|
||
</span></code></pre></div></p>
|
||
<hr />
|
||
<h3 id="redis-sentinel-high-availability">Redis Sentinel (High Availability)<a class="headerlink" href="#redis-sentinel-high-availability" title="Permanent link">¶</a></h3>
|
||
<p><strong>Automatic failover</strong> for Redis.</p>
|
||
<p><strong>docker-compose.yml</strong>:
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-14-1"><a id="__codelineno-14-1" name="__codelineno-14-1" href="#__codelineno-14-1"></a><span class="nt">redis-sentinel-1</span><span class="p">:</span>
|
||
</span><span id="__span-14-2"><a id="__codelineno-14-2" name="__codelineno-14-2" href="#__codelineno-14-2"></a><span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">redis:7-alpine</span>
|
||
</span><span id="__span-14-3"><a id="__codelineno-14-3" name="__codelineno-14-3" href="#__codelineno-14-3"></a><span class="w"> </span><span class="nt">command</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">redis-sentinel /etc/redis/sentinel.conf</span>
|
||
</span><span id="__span-14-4"><a id="__codelineno-14-4" name="__codelineno-14-4" href="#__codelineno-14-4"></a><span class="w"> </span><span class="nt">volumes</span><span class="p">:</span>
|
||
</span><span id="__span-14-5"><a id="__codelineno-14-5" name="__codelineno-14-5" href="#__codelineno-14-5"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">./configs/redis/sentinel.conf:/etc/redis/sentinel.conf</span>
|
||
</span><span id="__span-14-6"><a id="__codelineno-14-6" name="__codelineno-14-6" href="#__codelineno-14-6"></a>
|
||
</span><span id="__span-14-7"><a id="__codelineno-14-7" name="__codelineno-14-7" href="#__codelineno-14-7"></a><span class="c1"># ... repeat for sentinel-2, sentinel-3</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>sentinel.conf</strong>:
|
||
<div class="language-ini highlight"><pre><span></span><code><span id="__span-15-1"><a id="__codelineno-15-1" name="__codelineno-15-1" href="#__codelineno-15-1"></a><span class="na">sentinel monitor mymaster redis-primary 6379 2</span>
|
||
</span><span id="__span-15-2"><a id="__codelineno-15-2" name="__codelineno-15-2" href="#__codelineno-15-2"></a><span class="na">sentinel down-after-milliseconds mymaster 5000</span>
|
||
</span><span id="__span-15-3"><a id="__codelineno-15-3" name="__codelineno-15-3" href="#__codelineno-15-3"></a><span class="na">sentinel parallel-syncs mymaster 1</span>
|
||
</span><span id="__span-15-4"><a id="__codelineno-15-4" name="__codelineno-15-4" href="#__codelineno-15-4"></a><span class="na">sentinel failover-timeout mymaster 10000</span>
|
||
</span></code></pre></div></p>
|
||
<hr />
|
||
<h2 id="media-api-scaling">Media API Scaling<a class="headerlink" href="#media-api-scaling" title="Permanent link">¶</a></h2>
|
||
<h3 id="separate-media-containers">Separate Media Containers<a class="headerlink" href="#separate-media-containers" title="Permanent link">¶</a></h3>
|
||
<p><strong>docker-compose.yml</strong>:
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-16-1"><a id="__codelineno-16-1" name="__codelineno-16-1" href="#__codelineno-16-1"></a><span class="nt">media-api</span><span class="p">:</span>
|
||
</span><span id="__span-16-2"><a id="__codelineno-16-2" name="__codelineno-16-2" href="#__codelineno-16-2"></a><span class="w"> </span><span class="nt">deploy</span><span class="p">:</span>
|
||
</span><span id="__span-16-3"><a id="__codelineno-16-3" name="__codelineno-16-3" href="#__codelineno-16-3"></a><span class="w"> </span><span class="nt">replicas</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">2</span><span class="w"> </span><span class="c1"># Run 2 media API containers</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Nginx load balancer</strong>:
|
||
<div class="language-nginx highlight"><pre><span></span><code><span id="__span-17-1"><a id="__codelineno-17-1" name="__codelineno-17-1" href="#__codelineno-17-1"></a><span class="k">upstream</span><span class="w"> </span><span class="s">media_backend</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-17-2"><a id="__codelineno-17-2" name="__codelineno-17-2" href="#__codelineno-17-2"></a><span class="w"> </span><span class="kn">server</span><span class="w"> </span><span class="n">changemaker-media-api-1</span><span class="p">:</span><span class="mi">4100</span><span class="p">;</span>
|
||
</span><span id="__span-17-3"><a id="__codelineno-17-3" name="__codelineno-17-3" href="#__codelineno-17-3"></a><span class="w"> </span><span class="kn">server</span><span class="w"> </span><span class="n">changemaker-media-api-2</span><span class="p">:</span><span class="mi">4100</span><span class="p">;</span>
|
||
</span><span id="__span-17-4"><a id="__codelineno-17-4" name="__codelineno-17-4" href="#__codelineno-17-4"></a><span class="p">}</span>
|
||
</span><span id="__span-17-5"><a id="__codelineno-17-5" name="__codelineno-17-5" href="#__codelineno-17-5"></a>
|
||
</span><span id="__span-17-6"><a id="__codelineno-17-6" name="__codelineno-17-6" href="#__codelineno-17-6"></a><span class="k">location</span><span class="w"> </span><span class="s">/api/media/</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-17-7"><a id="__codelineno-17-7" name="__codelineno-17-7" href="#__codelineno-17-7"></a><span class="w"> </span><span class="kn">proxy_pass</span><span class="w"> </span><span class="s">http://media_backend</span><span class="p">;</span>
|
||
</span><span id="__span-17-8"><a id="__codelineno-17-8" name="__codelineno-17-8" href="#__codelineno-17-8"></a><span class="p">}</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Shared volume</strong> (read-only):
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-18-1"><a id="__codelineno-18-1" name="__codelineno-18-1" href="#__codelineno-18-1"></a><span class="nt">media-api</span><span class="p">:</span>
|
||
</span><span id="__span-18-2"><a id="__codelineno-18-2" name="__codelineno-18-2" href="#__codelineno-18-2"></a><span class="w"> </span><span class="nt">volumes</span><span class="p">:</span>
|
||
</span><span id="__span-18-3"><a id="__codelineno-18-3" name="__codelineno-18-3" href="#__codelineno-18-3"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">${MEDIA_ROOT}:/media:ro</span><span class="w"> </span><span class="c1"># All replicas read same library</span>
|
||
</span></code></pre></div></p>
|
||
<hr />
|
||
<h3 id="cdn-for-static-media">CDN for Static Media<a class="headerlink" href="#cdn-for-static-media" title="Permanent link">¶</a></h3>
|
||
<p><strong>Cloudflare CDN</strong> (or similar):</p>
|
||
<p><strong>Setup</strong>:
|
||
1. Enable Cloudflare proxy (orange cloud)
|
||
2. Configure cache rules:
|
||
- Cache <code>/media/library/*.mp4</code> for 30 days
|
||
- Bypass cache for <code>/api/media/</code> (dynamic)</p>
|
||
<p><strong>Benefits</strong>:
|
||
- Offload video bandwidth
|
||
- Global edge caching
|
||
- DDoS protection</p>
|
||
<hr />
|
||
<h2 id="frontend-scaling">Frontend Scaling<a class="headerlink" href="#frontend-scaling" title="Permanent link">¶</a></h2>
|
||
<h3 id="cdn-for-static-assets">CDN for Static Assets<a class="headerlink" href="#cdn-for-static-assets" title="Permanent link">¶</a></h3>
|
||
<p><strong>Vite production build</strong> → static files → CDN.</p>
|
||
<p><strong>Build</strong>:
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-19-1"><a id="__codelineno-19-1" name="__codelineno-19-1" href="#__codelineno-19-1"></a><span class="nb">cd</span><span class="w"> </span>admin<span class="w"> </span><span class="o">&&</span><span class="w"> </span>npm<span class="w"> </span>run<span class="w"> </span>build
|
||
</span></code></pre></div></p>
|
||
<p><strong>Upload to CDN</strong> (S3 + CloudFront):
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-20-1"><a id="__codelineno-20-1" name="__codelineno-20-1" href="#__codelineno-20-1"></a>aws<span class="w"> </span>s3<span class="w"> </span>sync<span class="w"> </span>dist/<span class="w"> </span>s3://changemaker-static/<span class="w"> </span>--delete
|
||
</span><span id="__span-20-2"><a id="__codelineno-20-2" name="__codelineno-20-2" href="#__codelineno-20-2"></a>aws<span class="w"> </span>cloudfront<span class="w"> </span>create-invalidation<span class="w"> </span>--distribution-id<span class="w"> </span>XYZ<span class="w"> </span>--paths<span class="w"> </span><span class="s2">"/*"</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Benefits</strong>:
|
||
- Global edge caching
|
||
- Reduced origin load
|
||
- Faster page loads</p>
|
||
<hr />
|
||
<h3 id="nginx-caching">Nginx Caching<a class="headerlink" href="#nginx-caching" title="Permanent link">¶</a></h3>
|
||
<p><strong>Proxy cache for API responses</strong>:
|
||
<div class="language-nginx highlight"><pre><span></span><code><span id="__span-21-1"><a id="__codelineno-21-1" name="__codelineno-21-1" href="#__codelineno-21-1"></a><span class="k">proxy_cache_path</span><span class="w"> </span><span class="s">/var/cache/nginx</span><span class="w"> </span><span class="s">levels=1:2</span><span class="w"> </span><span class="s">keys_zone=api_cache:10m</span><span class="w"> </span><span class="s">max_size=1g</span><span class="w"> </span><span class="s">inactive=60m</span><span class="p">;</span>
|
||
</span><span id="__span-21-2"><a id="__codelineno-21-2" name="__codelineno-21-2" href="#__codelineno-21-2"></a>
|
||
</span><span id="__span-21-3"><a id="__codelineno-21-3" name="__codelineno-21-3" href="#__codelineno-21-3"></a><span class="k">location</span><span class="w"> </span><span class="s">/api/campaigns</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-21-4"><a id="__codelineno-21-4" name="__codelineno-21-4" href="#__codelineno-21-4"></a><span class="w"> </span><span class="kn">proxy_cache</span><span class="w"> </span><span class="s">api_cache</span><span class="p">;</span>
|
||
</span><span id="__span-21-5"><a id="__codelineno-21-5" name="__codelineno-21-5" href="#__codelineno-21-5"></a><span class="w"> </span><span class="kn">proxy_cache_valid</span><span class="w"> </span><span class="mi">200</span><span class="w"> </span><span class="mi">10m</span><span class="p">;</span>
|
||
</span><span id="__span-21-6"><a id="__codelineno-21-6" name="__codelineno-21-6" href="#__codelineno-21-6"></a><span class="w"> </span><span class="kn">proxy_cache_key</span><span class="w"> </span><span class="s">"</span><span class="nv">$scheme$request_method$host$request_uri"</span><span class="p">;</span>
|
||
</span><span id="__span-21-7"><a id="__codelineno-21-7" name="__codelineno-21-7" href="#__codelineno-21-7"></a><span class="w"> </span><span class="kn">proxy_pass</span><span class="w"> </span><span class="s">http://changemaker-v2-api:4000</span><span class="p">;</span>
|
||
</span><span id="__span-21-8"><a id="__codelineno-21-8" name="__codelineno-21-8" href="#__codelineno-21-8"></a><span class="p">}</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Cacheable endpoints</strong>:
|
||
- <code>/api/campaigns</code> (public listing, 10 minutes)
|
||
- <code>/api/representatives</code> (lookup cache, 1 hour)
|
||
- <code>/api/locations/public</code> (map data, 5 minutes)</p>
|
||
<p><strong>Never cache</strong>:
|
||
- POST/PUT/DELETE requests
|
||
- Authenticated endpoints
|
||
- Real-time data (canvass sessions)</p>
|
||
<hr />
|
||
<h2 id="job-queue-scaling">Job Queue Scaling<a class="headerlink" href="#job-queue-scaling" title="Permanent link">¶</a></h2>
|
||
<h3 id="multiple-bullmq-workers">Multiple BullMQ Workers<a class="headerlink" href="#multiple-bullmq-workers" title="Permanent link">¶</a></h3>
|
||
<p><strong>API container scaling</strong> also scales workers (each container runs worker).</p>
|
||
<p><strong>Alternative</strong>: Dedicated worker containers.</p>
|
||
<p><strong>docker-compose.yml</strong>:
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-22-1"><a id="__codelineno-22-1" name="__codelineno-22-1" href="#__codelineno-22-1"></a><span class="nt">email-worker</span><span class="p">:</span>
|
||
</span><span id="__span-22-2"><a id="__codelineno-22-2" name="__codelineno-22-2" href="#__codelineno-22-2"></a><span class="w"> </span><span class="nt">build</span><span class="p">:</span>
|
||
</span><span id="__span-22-3"><a id="__codelineno-22-3" name="__codelineno-22-3" href="#__codelineno-22-3"></a><span class="w"> </span><span class="nt">context</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">./api</span>
|
||
</span><span id="__span-22-4"><a id="__codelineno-22-4" name="__codelineno-22-4" href="#__codelineno-22-4"></a><span class="w"> </span><span class="nt">container_name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">email-worker</span>
|
||
</span><span id="__span-22-5"><a id="__codelineno-22-5" name="__codelineno-22-5" href="#__codelineno-22-5"></a><span class="w"> </span><span class="nt">command</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">node dist/workers/email-worker.js</span>
|
||
</span><span id="__span-22-6"><a id="__codelineno-22-6" name="__codelineno-22-6" href="#__codelineno-22-6"></a><span class="w"> </span><span class="nt">environment</span><span class="p">:</span>
|
||
</span><span id="__span-22-7"><a id="__codelineno-22-7" name="__codelineno-22-7" href="#__codelineno-22-7"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">REDIS_URL=${REDIS_URL}</span>
|
||
</span><span id="__span-22-8"><a id="__codelineno-22-8" name="__codelineno-22-8" href="#__codelineno-22-8"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">SMTP_HOST=${SMTP_HOST}</span>
|
||
</span><span id="__span-22-9"><a id="__codelineno-22-9" name="__codelineno-22-9" href="#__codelineno-22-9"></a><span class="w"> </span><span class="c1"># ... other env vars</span>
|
||
</span><span id="__span-22-10"><a id="__codelineno-22-10" name="__codelineno-22-10" href="#__codelineno-22-10"></a><span class="w"> </span><span class="nt">depends_on</span><span class="p">:</span>
|
||
</span><span id="__span-22-11"><a id="__codelineno-22-11" name="__codelineno-22-11" href="#__codelineno-22-11"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">redis</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Worker script</strong> (api/src/workers/email-worker.ts):
|
||
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-23-1"><a id="__codelineno-23-1" name="__codelineno-23-1" href="#__codelineno-23-1"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">emailQueue</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">'../services/email-queue.service'</span><span class="p">;</span>
|
||
</span><span id="__span-23-2"><a id="__codelineno-23-2" name="__codelineno-23-2" href="#__codelineno-23-2"></a>
|
||
</span><span id="__span-23-3"><a id="__codelineno-23-3" name="__codelineno-23-3" href="#__codelineno-23-3"></a><span class="nx">emailQueue</span><span class="p">.</span><span class="nx">process</span><span class="p">(</span><span class="mf">10</span><span class="p">,</span><span class="w"> </span><span class="k">async</span><span class="w"> </span><span class="p">(</span><span class="nx">job</span><span class="p">)</span><span class="w"> </span><span class="p">=></span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-23-4"><a id="__codelineno-23-4" name="__codelineno-23-4" href="#__codelineno-23-4"></a><span class="w"> </span><span class="c1">// Process email job</span>
|
||
</span><span id="__span-23-5"><a id="__codelineno-23-5" name="__codelineno-23-5" href="#__codelineno-23-5"></a><span class="p">});</span>
|
||
</span><span id="__span-23-6"><a id="__codelineno-23-6" name="__codelineno-23-6" href="#__codelineno-23-6"></a>
|
||
</span><span id="__span-23-7"><a id="__codelineno-23-7" name="__codelineno-23-7" href="#__codelineno-23-7"></a><span class="nx">console</span><span class="p">.</span><span class="nx">log</span><span class="p">(</span><span class="s1">'Email worker started'</span><span class="p">);</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Scale workers</strong>:
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-24-1"><a id="__codelineno-24-1" name="__codelineno-24-1" href="#__codelineno-24-1"></a>docker<span class="w"> </span>compose<span class="w"> </span>up<span class="w"> </span>-d<span class="w"> </span>--scale<span class="w"> </span>email-worker<span class="o">=</span><span class="m">5</span>
|
||
</span></code></pre></div></p>
|
||
<hr />
|
||
<h2 id="monitoring-under-load">Monitoring Under Load<a class="headerlink" href="#monitoring-under-load" title="Permanent link">¶</a></h2>
|
||
<h3 id="load-testing">Load Testing<a class="headerlink" href="#load-testing" title="Permanent link">¶</a></h3>
|
||
<p><strong>k6 script</strong> (load-test.js):
|
||
<div class="language-javascript highlight"><pre><span></span><code><span id="__span-25-1"><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="k">import</span><span class="w"> </span><span class="nx">http</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">'k6/http'</span><span class="p">;</span>
|
||
</span><span id="__span-25-2"><a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">check</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">'k6'</span><span class="p">;</span>
|
||
</span><span id="__span-25-3"><a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></a>
|
||
</span><span id="__span-25-4"><a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></a><span class="k">export</span><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">options</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-25-5"><a id="__codelineno-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a><span class="w"> </span><span class="nx">stages</span><span class="o">:</span><span class="w"> </span><span class="p">[</span>
|
||
</span><span id="__span-25-6"><a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">duration</span><span class="o">:</span><span class="w"> </span><span class="s1">'1m'</span><span class="p">,</span><span class="w"> </span><span class="nx">target</span><span class="o">:</span><span class="w"> </span><span class="mf">50</span><span class="w"> </span><span class="p">},</span><span class="w"> </span><span class="c1">// Ramp to 50 users</span>
|
||
</span><span id="__span-25-7"><a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></a><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">duration</span><span class="o">:</span><span class="w"> </span><span class="s1">'3m'</span><span class="p">,</span><span class="w"> </span><span class="nx">target</span><span class="o">:</span><span class="w"> </span><span class="mf">50</span><span class="w"> </span><span class="p">},</span><span class="w"> </span><span class="c1">// Stay at 50 users</span>
|
||
</span><span id="__span-25-8"><a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">duration</span><span class="o">:</span><span class="w"> </span><span class="s1">'1m'</span><span class="p">,</span><span class="w"> </span><span class="nx">target</span><span class="o">:</span><span class="w"> </span><span class="mf">100</span><span class="w"> </span><span class="p">},</span><span class="w"> </span><span class="c1">// Ramp to 100 users</span>
|
||
</span><span id="__span-25-9"><a id="__codelineno-25-9" name="__codelineno-25-9" href="#__codelineno-25-9"></a><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">duration</span><span class="o">:</span><span class="w"> </span><span class="s1">'3m'</span><span class="p">,</span><span class="w"> </span><span class="nx">target</span><span class="o">:</span><span class="w"> </span><span class="mf">100</span><span class="w"> </span><span class="p">},</span><span class="w"> </span><span class="c1">// Stay at 100 users</span>
|
||
</span><span id="__span-25-10"><a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></a><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">duration</span><span class="o">:</span><span class="w"> </span><span class="s1">'1m'</span><span class="p">,</span><span class="w"> </span><span class="nx">target</span><span class="o">:</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="p">},</span><span class="w"> </span><span class="c1">// Ramp down</span>
|
||
</span><span id="__span-25-11"><a id="__codelineno-25-11" name="__codelineno-25-11" href="#__codelineno-25-11"></a><span class="w"> </span><span class="p">],</span>
|
||
</span><span id="__span-25-12"><a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a><span class="p">};</span>
|
||
</span><span id="__span-25-13"><a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a>
|
||
</span><span id="__span-25-14"><a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a><span class="k">export</span><span class="w"> </span><span class="k">default</span><span class="w"> </span><span class="kd">function</span><span class="w"> </span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-25-15"><a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">http</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'http://api.cmlite.org/api/campaigns'</span><span class="p">);</span>
|
||
</span><span id="__span-25-16"><a id="__codelineno-25-16" name="__codelineno-25-16" href="#__codelineno-25-16"></a><span class="w"> </span><span class="nx">check</span><span class="p">(</span><span class="nx">res</span><span class="p">,</span><span class="w"> </span><span class="p">{</span>
|
||
</span><span id="__span-25-17"><a id="__codelineno-25-17" name="__codelineno-25-17" href="#__codelineno-25-17"></a><span class="w"> </span><span class="s1">'status 200'</span><span class="o">:</span><span class="w"> </span><span class="p">(</span><span class="nx">r</span><span class="p">)</span><span class="w"> </span><span class="p">=></span><span class="w"> </span><span class="nx">r</span><span class="p">.</span><span class="nx">status</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="mf">200</span><span class="p">,</span>
|
||
</span><span id="__span-25-18"><a id="__codelineno-25-18" name="__codelineno-25-18" href="#__codelineno-25-18"></a><span class="w"> </span><span class="s1">'response time < 500ms'</span><span class="o">:</span><span class="w"> </span><span class="p">(</span><span class="nx">r</span><span class="p">)</span><span class="w"> </span><span class="p">=></span><span class="w"> </span><span class="nx">r</span><span class="p">.</span><span class="nx">timings</span><span class="p">.</span><span class="nx">duration</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">500</span><span class="p">,</span>
|
||
</span><span id="__span-25-19"><a id="__codelineno-25-19" name="__codelineno-25-19" href="#__codelineno-25-19"></a><span class="w"> </span><span class="p">});</span>
|
||
</span><span id="__span-25-20"><a id="__codelineno-25-20" name="__codelineno-25-20" href="#__codelineno-25-20"></a><span class="p">}</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Run test</strong>:
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-26-1"><a id="__codelineno-26-1" name="__codelineno-26-1" href="#__codelineno-26-1"></a>k6<span class="w"> </span>run<span class="w"> </span>load-test.js
|
||
</span></code></pre></div></p>
|
||
<hr />
|
||
<h3 id="prometheus-metrics">Prometheus Metrics<a class="headerlink" href="#prometheus-metrics" title="Permanent link">¶</a></h3>
|
||
<p><strong>Monitor scaling indicators</strong>:
|
||
- <code>rate(http_requests_total[5m])</code> — Request rate
|
||
- <code>histogram_quantile(0.95, http_request_duration_seconds)</code> — P95 latency
|
||
- <code>container_cpu_usage_seconds_total</code> — CPU usage per container
|
||
- <code>container_memory_usage_bytes</code> — Memory usage per container</p>
|
||
<p><strong>Grafana alert</strong>:
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-27-1"><a id="__codelineno-27-1" name="__codelineno-27-1" href="#__codelineno-27-1"></a><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">alert</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">HighAPILatency</span>
|
||
</span><span id="__span-27-2"><a id="__codelineno-27-2" name="__codelineno-27-2" href="#__codelineno-27-2"></a><span class="w"> </span><span class="nt">expr</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">histogram_quantile(0.95, rate(http_request_duration_seconds_bucket[5m])) > 0.5</span>
|
||
</span><span id="__span-27-3"><a id="__codelineno-27-3" name="__codelineno-27-3" href="#__codelineno-27-3"></a><span class="w"> </span><span class="nt">for</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">5m</span>
|
||
</span><span id="__span-27-4"><a id="__codelineno-27-4" name="__codelineno-27-4" href="#__codelineno-27-4"></a><span class="w"> </span><span class="nt">labels</span><span class="p">:</span>
|
||
</span><span id="__span-27-5"><a id="__codelineno-27-5" name="__codelineno-27-5" href="#__codelineno-27-5"></a><span class="w"> </span><span class="nt">severity</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">warning</span>
|
||
</span><span id="__span-27-6"><a id="__codelineno-27-6" name="__codelineno-27-6" href="#__codelineno-27-6"></a><span class="w"> </span><span class="nt">annotations</span><span class="p">:</span>
|
||
</span><span id="__span-27-7"><a id="__codelineno-27-7" name="__codelineno-27-7" href="#__codelineno-27-7"></a><span class="w"> </span><span class="nt">summary</span><span class="p">:</span><span class="w"> </span><span class="s">"P95</span><span class="nv"> </span><span class="s">latency</span><span class="nv"> </span><span class="s">>500ms,</span><span class="nv"> </span><span class="s">consider</span><span class="nv"> </span><span class="s">scaling"</span>
|
||
</span></code></pre></div></p>
|
||
<hr />
|
||
<h2 id="troubleshooting">Troubleshooting<a class="headerlink" href="#troubleshooting" title="Permanent link">¶</a></h2>
|
||
<h3 id="high-cpu-usage">High CPU Usage<a class="headerlink" href="#high-cpu-usage" title="Permanent link">¶</a></h3>
|
||
<p><strong>Diagnosis</strong>:
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-28-1"><a id="__codelineno-28-1" name="__codelineno-28-1" href="#__codelineno-28-1"></a><span class="c1"># Top processes</span>
|
||
</span><span id="__span-28-2"><a id="__codelineno-28-2" name="__codelineno-28-2" href="#__codelineno-28-2"></a>docker<span class="w"> </span>stats
|
||
</span><span id="__span-28-3"><a id="__codelineno-28-3" name="__codelineno-28-3" href="#__codelineno-28-3"></a>
|
||
</span><span id="__span-28-4"><a id="__codelineno-28-4" name="__codelineno-28-4" href="#__codelineno-28-4"></a><span class="c1"># API CPU usage</span>
|
||
</span><span id="__span-28-5"><a id="__codelineno-28-5" name="__codelineno-28-5" href="#__codelineno-28-5"></a>docker<span class="w"> </span>stats<span class="w"> </span>changemaker-v2-api
|
||
</span><span id="__span-28-6"><a id="__codelineno-28-6" name="__codelineno-28-6" href="#__codelineno-28-6"></a>
|
||
</span><span id="__span-28-7"><a id="__codelineno-28-7" name="__codelineno-28-7" href="#__codelineno-28-7"></a><span class="c1"># Profile Node.js</span>
|
||
</span><span id="__span-28-8"><a id="__codelineno-28-8" name="__codelineno-28-8" href="#__codelineno-28-8"></a>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>api<span class="w"> </span>node<span class="w"> </span>--prof<span class="w"> </span>dist/server.js
|
||
</span></code></pre></div></p>
|
||
<p><strong>Solutions</strong>:
|
||
- Scale API containers (3-5 replicas)
|
||
- Increase CPU limit (2-4 cores)
|
||
- Optimize slow queries (add indexes)
|
||
- Enable caching (Nginx proxy cache)</p>
|
||
<hr />
|
||
<h3 id="memory-leaks">Memory Leaks<a class="headerlink" href="#memory-leaks" title="Permanent link">¶</a></h3>
|
||
<p><strong>Diagnosis</strong>:
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-29-1"><a id="__codelineno-29-1" name="__codelineno-29-1" href="#__codelineno-29-1"></a><span class="c1"># Memory usage over time</span>
|
||
</span><span id="__span-29-2"><a id="__codelineno-29-2" name="__codelineno-29-2" href="#__codelineno-29-2"></a>docker<span class="w"> </span>stats<span class="w"> </span>--no-stream<span class="w"> </span>changemaker-v2-api
|
||
</span><span id="__span-29-3"><a id="__codelineno-29-3" name="__codelineno-29-3" href="#__codelineno-29-3"></a>
|
||
</span><span id="__span-29-4"><a id="__codelineno-29-4" name="__codelineno-29-4" href="#__codelineno-29-4"></a><span class="c1"># Heap snapshot (Node.js)</span>
|
||
</span><span id="__span-29-5"><a id="__codelineno-29-5" name="__codelineno-29-5" href="#__codelineno-29-5"></a>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>api<span class="w"> </span>node<span class="w"> </span>--inspect<span class="w"> </span>dist/server.js
|
||
</span><span id="__span-29-6"><a id="__codelineno-29-6" name="__codelineno-29-6" href="#__codelineno-29-6"></a><span class="c1"># Chrome DevTools → Memory → Take snapshot</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Solutions</strong>:
|
||
- Restart containers daily (cron job)
|
||
- Increase memory limit (4-8GB)
|
||
- Fix code leaks (event listeners, circular refs)</p>
|
||
<hr />
|
||
<h3 id="database-connection-exhaustion">Database Connection Exhaustion<a class="headerlink" href="#database-connection-exhaustion" title="Permanent link">¶</a></h3>
|
||
<p><strong>Symptoms</strong>: <code>Error: too many connections for role "changemaker"</code></p>
|
||
<p><strong>Diagnosis</strong>:
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-30-1"><a id="__codelineno-30-1" name="__codelineno-30-1" href="#__codelineno-30-1"></a><span class="c1"># Check connection count</span>
|
||
</span><span id="__span-30-2"><a id="__codelineno-30-2" name="__codelineno-30-2" href="#__codelineno-30-2"></a>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>v2-postgres<span class="w"> </span>psql<span class="w"> </span>-U<span class="w"> </span>changemaker<span class="w"> </span>-c<span class="w"> </span><span class="se">\</span>
|
||
</span><span id="__span-30-3"><a id="__codelineno-30-3" name="__codelineno-30-3" href="#__codelineno-30-3"></a><span class="w"> </span><span class="s2">"SELECT COUNT(*) FROM pg_stat_activity WHERE usename='changemaker'"</span>
|
||
</span><span id="__span-30-4"><a id="__codelineno-30-4" name="__codelineno-30-4" href="#__codelineno-30-4"></a>
|
||
</span><span id="__span-30-5"><a id="__codelineno-30-5" name="__codelineno-30-5" href="#__codelineno-30-5"></a><span class="c1"># Check max connections</span>
|
||
</span><span id="__span-30-6"><a id="__codelineno-30-6" name="__codelineno-30-6" href="#__codelineno-30-6"></a>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>v2-postgres<span class="w"> </span>psql<span class="w"> </span>-U<span class="w"> </span>changemaker<span class="w"> </span>-c<span class="w"> </span><span class="se">\</span>
|
||
</span><span id="__span-30-7"><a id="__codelineno-30-7" name="__codelineno-30-7" href="#__codelineno-30-7"></a><span class="w"> </span><span class="s2">"SHOW max_connections"</span>
|
||
</span></code></pre></div></p>
|
||
<p><strong>Solutions</strong>:
|
||
- Add PgBouncer (connection pooling)
|
||
- Increase <code>max_connections</code> (PostgreSQL config)
|
||
- Fix connection leaks (always close Prisma clients)</p>
|
||
<hr />
|
||
<h2 id="cost-optimization">Cost Optimization<a class="headerlink" href="#cost-optimization" title="Permanent link">¶</a></h2>
|
||
<h3 id="resource-allocation">Resource Allocation<a class="headerlink" href="#resource-allocation" title="Permanent link">¶</a></h3>
|
||
<p><strong>Right-sizing</strong> (don't over-provision):
|
||
- Start with 1 CPU, 1GB RAM per container
|
||
- Monitor actual usage (Prometheus)
|
||
- Scale based on metrics (not guesses)</p>
|
||
<p><strong>Example</strong> (production workload):
|
||
- API: 2 CPUs, 2GB RAM (3 replicas)
|
||
- PostgreSQL: 2 CPUs, 4GB RAM
|
||
- Redis: 1 CPU, 512MB RAM
|
||
- Media API: 2 CPUs, 2GB RAM (2 replicas)</p>
|
||
<hr />
|
||
<h3 id="autoscaling-docker-swarm">Autoscaling (Docker Swarm)<a class="headerlink" href="#autoscaling-docker-swarm" title="Permanent link">¶</a></h3>
|
||
<p><strong>Docker Swarm mode</strong> (alternative to Compose):
|
||
<div class="language-bash highlight"><pre><span></span><code><span id="__span-31-1"><a id="__codelineno-31-1" name="__codelineno-31-1" href="#__codelineno-31-1"></a><span class="c1"># Initialize swarm</span>
|
||
</span><span id="__span-31-2"><a id="__codelineno-31-2" name="__codelineno-31-2" href="#__codelineno-31-2"></a>docker<span class="w"> </span>swarm<span class="w"> </span>init
|
||
</span><span id="__span-31-3"><a id="__codelineno-31-3" name="__codelineno-31-3" href="#__codelineno-31-3"></a>
|
||
</span><span id="__span-31-4"><a id="__codelineno-31-4" name="__codelineno-31-4" href="#__codelineno-31-4"></a><span class="c1"># Deploy stack</span>
|
||
</span><span id="__span-31-5"><a id="__codelineno-31-5" name="__codelineno-31-5" href="#__codelineno-31-5"></a>docker<span class="w"> </span>stack<span class="w"> </span>deploy<span class="w"> </span>-c<span class="w"> </span>docker-compose.yml<span class="w"> </span>changemaker
|
||
</span><span id="__span-31-6"><a id="__codelineno-31-6" name="__codelineno-31-6" href="#__codelineno-31-6"></a>
|
||
</span><span id="__span-31-7"><a id="__codelineno-31-7" name="__codelineno-31-7" href="#__codelineno-31-7"></a><span class="c1"># Autoscale API</span>
|
||
</span><span id="__span-31-8"><a id="__codelineno-31-8" name="__codelineno-31-8" href="#__codelineno-31-8"></a>docker<span class="w"> </span>service<span class="w"> </span>scale<span class="w"> </span><span class="nv">changemaker_api</span><span class="o">=</span><span class="m">3</span>
|
||
</span><span id="__span-31-9"><a id="__codelineno-31-9" name="__codelineno-31-9" href="#__codelineno-31-9"></a>
|
||
</span><span id="__span-31-10"><a id="__codelineno-31-10" name="__codelineno-31-10" href="#__codelineno-31-10"></a><span class="c1"># Update with zero downtime</span>
|
||
</span><span id="__span-31-11"><a id="__codelineno-31-11" name="__codelineno-31-11" href="#__codelineno-31-11"></a>docker<span class="w"> </span>service<span class="w"> </span>update<span class="w"> </span>--image<span class="w"> </span>api:v2.1<span class="w"> </span>changemaker_api
|
||
</span></code></pre></div></p>
|
||
<p><strong>Autoscaling</strong>:
|
||
<div class="language-yaml highlight"><pre><span></span><code><span id="__span-32-1"><a id="__codelineno-32-1" name="__codelineno-32-1" href="#__codelineno-32-1"></a><span class="nt">api</span><span class="p">:</span>
|
||
</span><span id="__span-32-2"><a id="__codelineno-32-2" name="__codelineno-32-2" href="#__codelineno-32-2"></a><span class="w"> </span><span class="nt">deploy</span><span class="p">:</span>
|
||
</span><span id="__span-32-3"><a id="__codelineno-32-3" name="__codelineno-32-3" href="#__codelineno-32-3"></a><span class="w"> </span><span class="nt">replicas</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">3</span>
|
||
</span><span id="__span-32-4"><a id="__codelineno-32-4" name="__codelineno-32-4" href="#__codelineno-32-4"></a><span class="w"> </span><span class="nt">update_config</span><span class="p">:</span>
|
||
</span><span id="__span-32-5"><a id="__codelineno-32-5" name="__codelineno-32-5" href="#__codelineno-32-5"></a><span class="w"> </span><span class="nt">parallelism</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">1</span>
|
||
</span><span id="__span-32-6"><a id="__codelineno-32-6" name="__codelineno-32-6" href="#__codelineno-32-6"></a><span class="w"> </span><span class="nt">delay</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">10s</span>
|
||
</span><span id="__span-32-7"><a id="__codelineno-32-7" name="__codelineno-32-7" href="#__codelineno-32-7"></a><span class="w"> </span><span class="nt">restart_policy</span><span class="p">:</span>
|
||
</span><span id="__span-32-8"><a id="__codelineno-32-8" name="__codelineno-32-8" href="#__codelineno-32-8"></a><span class="w"> </span><span class="nt">condition</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">on-failure</span>
|
||
</span></code></pre></div></p>
|
||
<hr />
|
||
<h2 id="related-documentation">Related Documentation<a class="headerlink" href="#related-documentation" title="Permanent link">¶</a></h2>
|
||
<ul>
|
||
<li><strong><a href="../docker-compose/">Docker Compose</a></strong> — Container orchestration</li>
|
||
<li><strong><a href="../monitoring-stack/">Monitoring Stack</a></strong> — Performance metrics</li>
|
||
<li><strong><a href="../nginx/">Nginx Configuration</a></strong> — Load balancing</li>
|
||
<li><strong><a href="../backup-restore/">Backup & Restore</a></strong> — Data protection at scale</li>
|
||
</ul>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</article>
|
||
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