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<h2>Translating docker to nix?!</h2>
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<p>February 28, 2023</p>
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<h1>Translating docker to nix?!</h1>
<time>Feb 28, 2023</time>
<div class="tags">
<a href="/tags/docker">docker</a>
<a href="/tags/podman">podman</a>
<a href="/tags/nixos">nixos</a>
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</header><p>In my opinion, there are moments when the convenience of docker and its surrounding ecosystem can&rsquo;t be beat. I&rsquo;ve been dabbling in the self hosting world and oftentimes the best maintained packaging option is a docker image. As a result of this I&rsquo;ve been playing around with the nixos approach to managing docker containers.</p>
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<p>In my opinion, there are moments when the convenience of docker and its surrounding ecosystem can&rsquo;t be beat. I&rsquo;ve been dabbling in the self hosting world and oftentimes the best maintained packaging option is a docker image. As a result of this I&rsquo;ve been playing around with the nixos approach to managing docker containers.</p>
<h3 id="nix---docker-compose---docker-run">nix -&gt; docker compose -&gt; docker run</h3>
<p>To illustrate how to translate a simple example from the world of docker to nix let&rsquo;s have a look at the config for my <a href="https://docs.searxng.org/">searxng</a> instance.</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-nix" data-lang="nix"><span class="line"><span class="cl"><span class="n">virtualisation</span><span class="o">.</span><span class="n">oci-containers</span><span class="o">.</span><span class="n">containers</span><span class="o">.</span><span class="s2">&#34;searxng&#34;</span> <span class="o">=</span> <span class="p">{</span>
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</span></span><span class="line"><span class="cl"><span class="p">];</span>
</span></span></code></pre></div><p>With a mishmash of these different bits and bobs I was able to do everything that I needed to. It doesn&rsquo;t really open any more doors than docker compose but it&rsquo;s nice to have the option when you&rsquo;re already invested in the nix ecosystem.</p>
<p>One final note: nix provides the option to choose between docker and podman with <code>virtualisation.oci-containers.containers.backend</code>. This defaults to podman.</p>
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