394 lines
116 KiB
HTML
394 lines
116 KiB
HTML
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<!DOCTYPE html><html lang="en-US"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width,height=device-height,initial-scale=1.0"><meta name="apple-mobile-web-app-capable" content="yes"><meta http-equiv="X-UA-Compatible" content="ie=edge"><meta property="og:type" content="website"><meta name="twitter:card" content="summary"><style>@media screen{body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button,body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-note-container button{-webkit-tap-highlight-color:transparent;-webkit-appearance:none;appearance:none;background-color:transparent;border:0;color:inherit;cursor:pointer;font-size:inherit;opacity:.8;outline:none;padding:0;transition:opacity .2s linear}body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button:disabled,body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button:disabled,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button:disabled,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-note-container button:disabled{cursor:not-allowed;opacity:.15!important}body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button:hover,body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button:hover,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button:hover,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-note-container button:hover{opacity:1}body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button:hover:active,body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button:hover:active,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button:hover:active,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-note-container button:hover:active{opacity:.6}body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button:hover:not(:disabled),body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button:hover:not(:disabled),body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button:hover:not(:disabled),body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-note-container button:hover:not(:disabled){transition:none}body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button[data-bespoke-marp-osc=prev],body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button[data-bespoke-marp-osc=prev],body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button.bespoke-marp-presenter-info-page-prev{background:transparent url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAxMDAgMTAwIj48cGF0aCBmaWxsPSJub25lIiBzdHJva2U9IiNmZmYiIHN0cm9rZS1saW5lY2FwPSJyb3VuZCIgc3Ryb2tlLWxpbmVqb2luPSJyb3VuZCIgc3Ryb2tlLXdpZHRoPSI1IiBkPSJNNjggOTAgMjggNTBsNDAtNDAiLz48L3N2Zz4=") no-repeat 50%;background-size:contain;overflow:hidden;text-indent:100%;white-space:nowrap}body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button[data-bespoke-marp-osc=next],body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button[data-bespoke-marp-osc=next],body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button.bespoke-marp-presenter-info-page-next{background:transparent url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAxMDAgMTAwIj48cGF0aCBmaWxsPSJub25lIiBzdHJva2U9IiNmZmYiIHN0cm9rZS1saW5lY2FwPSJyb3VuZCIgc3Ryb2tlLWxpbmVqb2luPS
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/*!
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* Marp default theme.
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*
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* @theme default
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* @author Yuki Hattori
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*
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* @auto-scaling true
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* @size 16:9 1280px 720px
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* @size 4:3 960px 720px
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<h1 id="nixops4">NixOps4</h1>
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<ul>
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<li>Why</li>
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<li>What</li>
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<li>How</li>
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</ul>
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<p>Robert Hensing<br />
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@roberth</p>
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<p>fediversity.eu</p>
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</section>
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<h1 id="roberth">@roberth</h1>
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<p><br />
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Robert Hensing</p>
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<ul>
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<li>Hercules CI</li>
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<li>Nix Steering Committee</li>
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<li>Nix team</li>
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<li>Module System / flake-parts / modular services / single package fixpoint</li>
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<li>NixOps4</li>
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</ul>
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</section>
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</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="left"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;--marpit-advanced-background-split:50%;" data-marpit-advanced-background="background" data-marpit-advanced-background-split="left"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("ngi_fedi_full.svg");background-size:70%;"></figure></div></section></foreignObject><foreignObject width="50%" height="720" x="50%"><section id="3" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;--marpit-advanced-background-split:50%;" data-marpit-advanced-background="content" data-marpit-advanced-background-split="left">
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<h1 id="fediversityeu">Fediversity.eu</h1>
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<ul>
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<li>NLNet</li>
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<li>NORDUnet</li>
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<li>Tweag</li>
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<li>Open Internet Discourse Foundation</li>
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</ul>
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</section>
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</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="left"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="4" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
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<h1 id="fediversityeu-1">Fediversity.eu</h1>
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<p>Quotes, emphasis mine:</p>
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<p>The Fediversity Project is a comprehensive effort to bring easy-to-use, <em><strong>hosted cloud services</strong></em> that have service portability and personal freedom at their core to everyone.</p>
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<p>The Fediversity Project enables easy hosting for a wide variety of fediverse platforms, all based on <em><strong>NixOS</strong></em>.</p>
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<p>helps with decentralisation of the internet, a core principle of the NGI, by making it easier for people to participate in the Open Social Web <em><strong>on their own terms</strong></em>.</p>
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</section>
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</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="5" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
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<h1 id="nixops4-1">NixOps4</h1>
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<ul>
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<li>Deployment tool</li>
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<li>WIP</li>
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<li>Successor to NixOps</li>
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</ul>
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</section>
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</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="6" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
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<h1 id="why">Why</h1>
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<p>2013 - 2020</p>
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<ul>
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<li>NixOps 1 is a tool to deploy NixOS systems</li>
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<li>Provisioning, secrets</li>
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<li>Also resources, e.g. AWS Route53</li>
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</ul>
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</section>
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</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="7" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
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<h1 id="why-1">Why</h1>
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<ul>
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<li>Testing and CI</li>
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<li>Python (*)</li>
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<li>Call Nix evaluator in batch, twice (bad)</li>
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</ul>
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</section>
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</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="8" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
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<h1 id="why-2">Why</h1>
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<p>NixOps 2</p>
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<p>2020 - ...</p>
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<ul>
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<li>Plugins</li>
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<li>Polyrepo</li>
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</ul>
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</section>
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</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;--marpit-advanced-background-split:66%;" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("nixops2.png");background-size:auto 80%;"></figure></div></section></foreignObject><foreignObject width="34%" height="720"><section id="9" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;--marpit-advanced-background-split:66%;" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
|
||
|
|
<h1 id="why-3">Why</h1>
|
||
|
|
<p>NixOps 2</p>
|
||
|
|
<p>2020 - ...</p>
|
||
|
|
</section>
|
||
|
|
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="10" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="why-4">Why</h1>
|
||
|
|
<p>2021</p>
|
||
|
|
<p>@roberth</p>
|
||
|
|
<ul>
|
||
|
|
<li>Still the only tool that integrates provisioning</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="11" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="step-back">Step back</h1>
|
||
|
|
<p>Nix</p>
|
||
|
|
<pre is="marp-pre" data-auto-scaling="downscale-only"><code>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
┌────────────┐ ┌────────────────────┐
|
||
|
|
│ Nix │---- instantiate ---->│ Derivations │ ↺ store path
|
||
|
|
│ expression │ └────────────────────┘
|
||
|
|
│ language │ ⇑ builds
|
||
|
|
│ │ ┌────────────────────┐
|
||
|
|
│ │ │ Nix sandbox, store │
|
||
|
|
└────────────┘ └────────────────────┘
|
||
|
|
</code></pre>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="12" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="architecture">Architecture</h1>
|
||
|
|
<p>NixOps4</p>
|
||
|
|
<pre is="marp-pre" data-auto-scaling="downscale-only"><code>┌────────────┐ ┌────────────────────┐
|
||
|
|
│ Nix │---- configure ------>│ Resources │ ↺ nix value
|
||
|
|
│ expression │ └────────────────────┘
|
||
|
|
│ language │ ⇑ run output
|
||
|
|
│ │ ┌────────────────────┐
|
||
|
|
│ │---- instantiate ---->│ Derivations │ ↺ store path
|
||
|
|
│ │ └────────────────────┘
|
||
|
|
│ │ ⇑ builds
|
||
|
|
│ │ ┌────────────────────┐
|
||
|
|
│ │ │ Nix sandbox, store │
|
||
|
|
└────────────┘ └────────────────────┘
|
||
|
|
</code></pre>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="13" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="resource">Resource</h1>
|
||
|
|
<ul>
|
||
|
|
<li>Declares the existence of a real world object</li>
|
||
|
|
<li>Operations
|
||
|
|
<ul>
|
||
|
|
<li>Create</li>
|
||
|
|
<li>Read</li>
|
||
|
|
<li>Update</li>
|
||
|
|
<li>Delete</li>
|
||
|
|
</ul>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="14" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="deployment">Deployment</h1>
|
||
|
|
<p>Collection of resources</p>
|
||
|
|
<ul>
|
||
|
|
<li>wired together with Nix expressions</li>
|
||
|
|
<li>reflecting some area of the real world</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="15" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="operations">Operations</h1>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p>CRUD</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>"<code>nix run</code>"</p>
|
||
|
|
<ul>
|
||
|
|
<li>backup</li>
|
||
|
|
<li>key rotation</li>
|
||
|
|
</ul>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="16" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="resource-provider">Resource Provider</h1>
|
||
|
|
<ul>
|
||
|
|
<li>Program built with Nix</li>
|
||
|
|
<li>Called by NixOps</li>
|
||
|
|
<li>JSON over stdio</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="17" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="expressions">Expressions</h1>
|
||
|
|
<p>Simplified</p>
|
||
|
|
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-nix">{ <span class="hljs-comment"># flake.nix</span>
|
||
|
|
<span class="hljs-attr">outputs</span> = inputs: {
|
||
|
|
nixops4Deployments.<span class="hljs-attr">default</span> = { resources, ... }: {
|
||
|
|
<span class="hljs-attr">resources</span> = {
|
||
|
|
<resource name> = {
|
||
|
|
...
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
}
|
||
|
|
</code></pre>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="18" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="expressions-1">Expressions</h1>
|
||
|
|
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-nix">{ resources, ... }: {
|
||
|
|
<span class="hljs-attr">resources</span> = {
|
||
|
|
<span class="hljs-string">"nixos"</span> = {
|
||
|
|
<span class="hljs-attr">imports</span> = [ inputs.nixos.modules.nixops4Resource.nixos ];
|
||
|
|
<span class="hljs-attr">inputs</span> = {
|
||
|
|
ssh.<span class="hljs-attr">privateKey</span> = resources.sshkeypair.privateKey;
|
||
|
|
ssh.<span class="hljs-attr">host</span> = resources.host;
|
||
|
|
<span class="hljs-attr">module</span> = ./configuration.nix;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
}
|
||
|
|
</code></pre>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="19" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="expressions-2">Expressions</h1>
|
||
|
|
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-nix">{ resources, ... }: {
|
||
|
|
<span class="hljs-attr">resources</span> = {
|
||
|
|
<span class="hljs-string">"nixos"</span> = ...;
|
||
|
|
<span class="hljs-string">"sshkeypair"</span> = {
|
||
|
|
<span class="hljs-attr">type</span> = <span class="hljs-string">"ssh.keypair"</span>;
|
||
|
|
<span class="hljs-attr">inputs</span> = {
|
||
|
|
<span class="hljs-attr">state</span> = resources.state;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
}
|
||
|
|
</code></pre>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="20" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="expressions-3">Expressions</h1>
|
||
|
|
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-nix">{ resources, ... }: {
|
||
|
|
<span class="hljs-attr">resources</span> = {
|
||
|
|
<span class="hljs-string">"nixos"</span> = ...;
|
||
|
|
<span class="hljs-string">"sshkeypair"</span> = ...;
|
||
|
|
<span class="hljs-string">"state"</span> = {
|
||
|
|
<span class="hljs-attr">type</span> = <span class="hljs-string">"s3.object"</span>;
|
||
|
|
<span class="hljs-attr">inputs</span> = {
|
||
|
|
<span class="hljs-attr">endpoint</span> = <span class="hljs-string">"https://garage.example.com"</span>;
|
||
|
|
<span class="hljs-attr">bucket</span> = <span class="hljs-string">"nixops4-my-project"</span>;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
}
|
||
|
|
</code></pre>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="21" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="expressions-4">Expressions</h1>
|
||
|
|
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-nix">{ config, resources, ... }: {
|
||
|
|
options.<span class="hljs-attr">customers</span> = mkOption {
|
||
|
|
<span class="hljs-attr">type</span> = attrsOf (submodule ./customer.nix);
|
||
|
|
};
|
||
|
|
config.<span class="hljs-attr">resources</span> = {
|
||
|
|
<span class="hljs-string">"state"</span> = ...;
|
||
|
|
<span class="hljs-string">"sshkeypair"</span> = ...;
|
||
|
|
<span class="hljs-string">"nixos"</span> = ... (foo config.customers) ...;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
</code></pre>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="22" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="expressions-5">Expressions</h1>
|
||
|
|
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-nix">{ resources, ... }: {
|
||
|
|
<span class="hljs-attr">imports</span> = [
|
||
|
|
./data-model.nix
|
||
|
|
./applications/pixelfed.nix
|
||
|
|
./applications/mastodon.nix
|
||
|
|
./applications/peertube.nix
|
||
|
|
];
|
||
|
|
}
|
||
|
|
</code></pre>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="23" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="expressions-6">Expressions</h1>
|
||
|
|
<ul>
|
||
|
|
<li><code>resources</code> monoid in the category of endofunctors <img class="emoji" draggable="false" alt="😉" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/1f609.svg" data-marp-twemoji=""/></li>
|
||
|
|
<li>Structural composition like <code>attrsOf</code> or <code>submodule</code>
|
||
|
|
<ul>
|
||
|
|
<li><code>imports</code> is mix-ins</li>
|
||
|
|
</ul>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-nix">top@{ resources, ... }: {
|
||
|
|
<span class="hljs-attr">resources</span> = {
|
||
|
|
<span class="hljs-string">"state"</span> = ...;
|
||
|
|
<span class="hljs-string">"my-host"</span> = mkSequence ({ resources, ... }: {
|
||
|
|
<span class="hljs-string">"sshkeypair"</span> = ... top.resources.state.handle ...;
|
||
|
|
<span class="hljs-string">"nixos"</span> = ... resources.sshkeypair.privateKey ...;
|
||
|
|
});
|
||
|
|
};
|
||
|
|
}
|
||
|
|
</code></pre>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="24" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="module-author-benefits">Module author benefits</h1>
|
||
|
|
<ul>
|
||
|
|
<li>All-Nix development experience</li>
|
||
|
|
<li>No glue code</li>
|
||
|
|
<li>All declarative</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="25" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="application-benefits">Application benefits</h1>
|
||
|
|
<p>"NixPanel"</p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p>Structured logging</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>Separate evaluator for stability</p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="26" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="operator-benefits">Operator benefits</h1>
|
||
|
|
<p>CLI for the backend</p>
|
||
|
|
<p>Integrate arbitrary scripts, no glue code</p>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="27" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="operator-benefits-1">Operator benefits</h1>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="28" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="progress">Progress</h1>
|
||
|
|
<p>Built, but subject to fixes and improvements</p>
|
||
|
|
<ul>
|
||
|
|
<li><code>nixops4</code>/<code>nixops4-eval</code> process architecture</li>
|
||
|
|
<li>Nix C API, Rust bindings</li>
|
||
|
|
<li>Documentation tooling</li>
|
||
|
|
<li>Testing</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="29" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="progress-1">Progress</h1>
|
||
|
|
<p>TBD</p>
|
||
|
|
<ul>
|
||
|
|
<li><code>mkSequence</code> nesting / data dependencies</li>
|
||
|
|
<li>Read, Update, Delete</li>
|
||
|
|
<li>State management</li>
|
||
|
|
<li>More resources, OpenTofu</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="30" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="questions">Questions</h1>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="31" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="not-discussed">Not discussed</h1>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p>Resource naming within the state</p>
|
||
|
|
<ul>
|
||
|
|
<li>read multiple => migrations</li>
|
||
|
|
</ul>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p><code>resourceProviderSystem</code></p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
|
|
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="32" data-class="invert" data-heading-divider="1" lang="en-US" class="invert" style="--class:invert;--heading-divider:1;">
|
||
|
|
<h1 id="process-architecture">Process Architecture</h1>
|
||
|
|
<ul>
|
||
|
|
<li><code>nixops4</code>
|
||
|
|
<ul>
|
||
|
|
<li><code>nixops4-eval</code> -> <code>libnixexpr</code> etc (internal)</li>
|
||
|
|
<li>resource providers
|
||
|
|
<ul>
|
||
|
|
<li><code>nixops4-resources-local</code></li>
|
||
|
|
<li><code>nixops4-resources-opentofu</code> (planned)</li>
|
||
|
|
<li>...</li>
|
||
|
|
</ul>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
</section>
|
||
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|
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|
||
|
|
</script></foreignObject></svg></div><div class="bespoke-marp-note" data-index="5" tabindex="0"><p>What is the problem NixOps solves?</p></div><div class="bespoke-marp-note" data-index="6" tabindex="0"><p>Also _has_ problems
|
||
|
|
|
||
|
|
Testing and CI are underdeveloped
|
||
|
|
|
||
|
|
Python is probably a fine language, but it did turn away contributors, and the way the code base was set up made it hard
|
||
|
|
|
||
|
|
Calling the evaluator twice is both too often and too little, leading to bad workarounds.</p></div><div class="bespoke-marp-note" data-index="8" tabindex="0"><p>I sincerely apologize to the authors and previous maintainers.
|
||
|
|
They did a good job with the architecture they had.
|
||
|
|
|
||
|
|
- Plugin system
|
||
|
|
- Ossified the architecture</p></div><div class="bespoke-marp-note" data-index="10" tabindex="0"><p>TODO: Explain firmly</p></div><div class="bespoke-marp-note" data-index="11" tabindex="0"><p>Adds new layer on top, analogous to Nix
|
||
|
|
|
||
|
|
Focus on `nix value` => precisely that; no tight coupling between NixOps and its resources
|
||
|
|
|
||
|
|
NixOps4 just manages the data flows generically
|
||
|
|
|
||
|
|
Another benefit
|
||
|
|
- resource can be implemented in any language, with any library
|
||
|
|
|
||
|
|
Not comparable to NixOps 2 architecture image. NixOps 2 is "just a script" that grew until it failed to scale and then ossified with plugins.</p></div><div class="bespoke-marp-note" data-index="14" tabindex="0"><p>a. Arbitrary callable methods in resource provider
|
||
|
|
b. Scripts depending on resource outputs</p></div><div class="bespoke-marp-note" data-index="16" tabindex="0"><p>These are very abstract. Clarify why.</p><p>Next: zoom in on the function</p></div><script>/*!! License: https://unpkg.com/@marp-team/marp-cli@3.4.0/lib/bespoke.js.LICENSE.txt */
|
||
|
|
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