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authorVincent Ambo <tazjin@google.com>2019-07-23T19·24+0000
committerVincent Ambo <tazjin@google.com>2019-07-23T19·53+0100
commit30424447574a0bc0ac8a7c9862b4000c70da846f (patch)
treef2115594a9a05667171e50d692b8e7dcc98c3b7a /tools/nixery/index.html
parent4e93773cf7dd7e2fe9daa44af98ef65159582511 (diff)
chore: Import Nixery from experimental
Moves the existing Nixery code base to a git repository and switches
to public equivalents of libraries used.
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+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>Nixery</title>
+    <style>
+      body {
+        margin: 40px auto;
+        max-width: 650px;
+        line-height: 1.6;
+        font-size: 18px;
+        color: #444;
+        padding: 010px
+      }
+
+      h1, h2, h3 {
+        line-height: 1.2
+      }
+    </style>
+  </head>
+  <body>
+    <header>
+      <h1>Nixery</h1>
+      <aside>ad-hoc container images - powered by <a href="https://nixos.org/nix/">Nix</a></aside>
+    </header>
+    <h3>What is this?</h3>
+    <p>
+      Nixery provides the ability to pull ad-hoc container images from a Docker-compatible registry
+      server. The image names specify the contents the image should contain, which are then
+      retrieved and built by the Nix package manager.
+    </p>
+    <p>
+      Nix is also responsible for the creation of the container images themselves. To do this it
+      uses an interesting layering strategy described in
+      <a href="https://grahamc.com/blog/nix-and-layered-docker-images">this blog post</a>.
+    </p>
+    <h3>How does it work?</h3>
+    <p>
+      Simply point your local Docker installation (or other compatible registry client) at Nixery
+      and ask for an image with the contents you desire. Image contents are path separated in the
+      name, so for example if you needed an image that contains a shell and <code>emacs</code> you
+      could pull it as such:
+    </p>
+    <p>
+      <code>nixery.appspot.com/shell/emacs25-nox</code>
+    </p>
+    <p>
+      Image tags are currently <i>ignored</i>. Every package name needs to correspond to a key in the
+      <a href="https://github.com/NixOS/nixpkgs/blob/master/pkgs/top-level/all-packages.nix">nixpkgs package set</a>.
+    </p>
+    <p>
+      There are some special <i>meta-packages</i> which you <strong>must</strong> specify as the
+      first package in an image. These are:
+    </p>
+    <ul>
+      <li><code>shell</code>: Provides default packages you would expect in an interactive environment</li>
+      <li><code>builder</code>: Provides the above as well as Nix's standard build environment</li>
+    </ul>
+    <p>
+      Hence if you needed an interactive image with, for example, <code>htop</code> installed you
+      could run <code>docker run -ti nixery.appspot.com/shell/htop bash</code>.
+    </p>
+    <h3>FAQ</h3>
+    <p>
+      Technically speaking none of these are frequently-asked questions (because no questions have
+      been asked so far), but I'm going to take a guess at a few anyways:
+    </p>
+    <ul>
+      <li>
+        <strong>Where is the source code for this?</strong>
+        <br>
+        Not yet public, sorry. Check back later(tm).
+      </li>
+      <li>
+        <strong>Which revision of <code>nixpkgs</code> is used?</strong>
+        <br>
+        Currently whatever was <code>HEAD</code> at the time I deployed this. One idea I've had is
+        to let users specify tags on images that correspond to commits in nixpkgs, however there is
+        some potential for abuse there (e.g. by triggering lots of builds on commits that have
+        broken Hydra builds) and I don't want to deal with that yet.
+      </li>
+      <li>
+        <strong>Who made this?</strong>
+        <br>
+        <a href="https://twitter.com/tazjin">@tazjin</a>
+      </li>
+    </ul>
+  </body>
+</html>