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3b0d5b5ed3
Adapted from grahamc's blog post on layered Docker images in Nix: https://grahamc.com/blog/nix-and-layered-docker-images
85 lines
4.7 KiB
Nix
85 lines
4.7 KiB
Nix
# this test creates a simple GNU image with docker tools and sees if it executes
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import ./make-test.nix ({ pkgs, ... }: {
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name = "docker-tools";
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meta = with pkgs.stdenv.lib.maintainers; {
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maintainers = [ lnl7 ];
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};
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nodes = {
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docker =
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{ ... }: {
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virtualisation = {
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diskSize = 2048;
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docker.enable = true;
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};
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};
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};
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testScript =
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''
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$docker->waitForUnit("sockets.target");
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# Ensure Docker images use a stable date by default
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.bash}'");
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$docker->succeed("[ '1970-01-01T00:00:01Z' = \"\$(docker inspect ${pkgs.dockerTools.examples.bash.imageName} | ${pkgs.jq}/bin/jq -r .[].Created)\" ]");
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$docker->succeed("docker run --rm ${pkgs.dockerTools.examples.bash.imageName} bash --version");
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$docker->succeed("docker rmi ${pkgs.dockerTools.examples.bash.imageName}");
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# Check if the nix store is correctly initialized by listing dependencies of the installed Nix binary
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.nix}'");
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$docker->succeed("docker run --rm ${pkgs.dockerTools.examples.nix.imageName} nix-store -qR ${pkgs.nix}");
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$docker->succeed("docker rmi ${pkgs.dockerTools.examples.nix.imageName}");
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# To test the pullImage tool
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.nixFromDockerHub}'");
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$docker->succeed("docker run --rm nix:2.2.1 nix-store --version");
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$docker->succeed("docker rmi nix:2.2.1");
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# To test runAsRoot and entry point
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.nginx}'");
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$docker->succeed("docker run --name nginx -d -p 8000:80 ${pkgs.dockerTools.examples.nginx.imageName}");
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$docker->waitUntilSucceeds('curl http://localhost:8000/');
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$docker->succeed("docker rm --force nginx");
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$docker->succeed("docker rmi '${pkgs.dockerTools.examples.nginx.imageName}'");
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# An pulled image can be used as base image
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.onTopOfPulledImage}'");
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$docker->succeed("docker run --rm ontopofpulledimage hello");
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$docker->succeed("docker rmi ontopofpulledimage");
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# Regression test for issue #34779
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.runAsRootExtraCommands}'");
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$docker->succeed("docker run --rm runasrootextracommands cat extraCommands");
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$docker->succeed("docker run --rm runasrootextracommands cat runAsRoot");
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$docker->succeed("docker rmi '${pkgs.dockerTools.examples.runAsRootExtraCommands.imageName}'");
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# Ensure Docker images can use an unstable date
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.bash}'");
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$docker->succeed("[ '1970-01-01T00:00:01Z' != \"\$(docker inspect ${pkgs.dockerTools.examples.unstableDate.imageName} | ${pkgs.jq}/bin/jq -r .[].Created)\" ]");
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# Ensure Layered Docker images work
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.layered-image}'");
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$docker->succeed("docker run --rm ${pkgs.dockerTools.examples.layered-image.imageName}");
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$docker->succeed("docker run --rm ${pkgs.dockerTools.examples.layered-image.imageName} cat extraCommands");
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# Ensure building an image on top of a layered Docker images work
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.layered-on-top}'");
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$docker->succeed("docker run --rm ${pkgs.dockerTools.examples.layered-on-top.imageName}");
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# Ensure layers are shared between images
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.another-layered-image}'");
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$docker->succeed("docker inspect ${pkgs.dockerTools.examples.layered-image.imageName} | ${pkgs.jq}/bin/jq -r '.[] | .RootFS.Layers | .[]' | sort > layers1.sha256");
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$docker->succeed("docker inspect ${pkgs.dockerTools.examples.another-layered-image.imageName} | ${pkgs.jq}/bin/jq -r '.[] | .RootFS.Layers | .[]' | sort > layers2.sha256");
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$docker->succeed('[ $(comm -1 -2 layers1.sha256 layers2.sha256 | wc -l) -ne 0 ]');
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# Ensure order of layers is correct
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$docker->succeed("docker load --input='${pkgs.dockerTools.examples.layersOrder}'");
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$docker->succeed("docker run --rm ${pkgs.dockerTools.examples.layersOrder.imageName} cat /tmp/layer1 | grep -q layer1");
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# This is to be sure the order of layers of the parent image is preserved
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$docker->succeed("docker run --rm ${pkgs.dockerTools.examples.layersOrder.imageName} cat /tmp/layer2 | grep -q layer2");
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$docker->succeed("docker run --rm ${pkgs.dockerTools.examples.layersOrder.imageName} cat /tmp/layer3 | grep -q layer3");
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'';
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})
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