initial commit

static docker registry is working

build.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+./build_containers.sh
+./build_registry.py > static_registry/default.nix

build_containers.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+set -x
+for dir in $(ls static_registry)
+do
+    [ ! -d static_registry/$dir ] && continue
+    pushd .
+    echo $dir
+    cd static_registry/$dir
+    COMMIT_HASH=$(docker build . | tail -n 1 | cut -d ' ' -f3)
+    TAG=$(basename $(pwd)):$COMMIT_HASH
+    docker tag $COMMIT_HASH $TAG
+    docker save $TAG | gzip > $COMMIT_HASH.tar.gz
+    popd
+done

build_registry.py

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+from pathlib import Path
+
+pathlist = Path("static_registry").glob('**/*.tar.gz')
+registry = {
+}
+
+def build_images(name, images):
+    return '{\n' + "\n".join([ f'    {name}_{tag} = {{ image = "${{{image}}}"; tag = "{name}:{tag}"; }};' for tag, image in images.items() ]) + '\n  };'
+
+def build_registry(registry):
+    return '{\n' + "\n".join([ f'  {name} = ' + build_images(name, images) for name, images in registry.items() ]) + '\n}'
+
+def print_registry(registry):
+    print(build_registry(registry))
+
+for path in pathlist:
+    name = path.parts[-2]
+    image = str(path.resolve())
+    tag = path.parts[-1].split('.', 1)[0]
+    if name not in registry:
+        registry[name] = {}
+    registry[name][tag] = image
+print_registry(registry)

module.nix

@@ -0,0 +1,18 @@
+{ config, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.foo.bar;
+
+in
+
+{
+  options.foo.bar = {
+    enable = mkEnableOption "foobar";
+  };
+
+  config = mkIf cfg.enable {
+    # ...
+  };
+}

static_registry/nginx/Dockerfile

@@ -0,0 +1 @@
+FROM nginx:1.19-alpine

tests.nix

@@ -0,0 +1,37 @@
+{ system ? builtins.currentSystem
+, pkgs ? import <nixpkgs> { inherit system; }
+}:
+
+with import <nixpkgs/nixos/lib/testing-python.nix> { inherit system pkgs; };
+
+let
+  registry = import ./static_registry/default.nix;
+in
+{
+  mytest = makeTest {
+    machine = { ... }: {
+      imports = [ ./module.nix ];
+
+      virtualisation.cores = 4;
+      virtualisation.memorySize = 1024;
+
+      foo.bar.enable = true;
+
+      docker-containers.nginx = let
+        image = registry.nginx.nginx_7d0cdcc60a96;
+      in
+      {
+        image = image.tag;
+        imageFile = image.image;
+        ports = ["8181:80"];
+      };
+    };
+
+    testScript = ''
+      machine.start()
+      machine.wait_for_unit("docker-nginx.service")
+      machine.wait_for_open_port(8181)
+      machine.wait_until_succeeds("curl http://localhost:8181")
+    '';
+  };
+}