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|
# this test creates a simple GNU image with docker tools and sees if it executes
import ./make-test-python.nix ({ pkgs, ... }: {
name = "docker-tools";
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ lnl7 ];
};
nodes = {
docker = { ... }: {
virtualisation = {
diskSize = 2048;
docker.enable = true;
};
};
};
testScript = with pkgs.dockerTools; ''
unix_time_second1 = "1970-01-01T00:00:01Z"
docker.wait_for_unit("sockets.target")
with subtest("Ensure Docker images use a stable date by default"):
docker.succeed(
"docker load --input='${examples.bash}'"
)
assert unix_time_second1 in docker.succeed(
"docker inspect ${examples.bash.imageName} "
+ "| ${pkgs.jq}/bin/jq -r .[].Created",
)
docker.succeed("docker run --rm ${examples.bash.imageName} bash --version")
# Check imageTag attribute matches image
docker.succeed("docker images --format '{{.Tag}}' | grep -F '${examples.bash.imageTag}'")
docker.succeed("docker rmi ${examples.bash.imageName}")
# The remaining combinations
with subtest("Ensure imageTag attribute matches image"):
docker.succeed(
"docker load --input='${examples.bashNoTag}'"
)
docker.succeed(
"docker images --format '{{.Tag}}' | grep -F '${examples.bashNoTag.imageTag}'"
)
docker.succeed("docker rmi ${examples.bashNoTag.imageName}:${examples.bashNoTag.imageTag}")
docker.succeed(
"docker load --input='${examples.bashNoTagLayered}'"
)
docker.succeed(
"docker images --format '{{.Tag}}' | grep -F '${examples.bashNoTagLayered.imageTag}'"
)
docker.succeed("docker rmi ${examples.bashNoTagLayered.imageName}:${examples.bashNoTagLayered.imageTag}")
docker.succeed(
"${examples.bashNoTagStreamLayered} | docker load"
)
docker.succeed(
"docker images --format '{{.Tag}}' | grep -F '${examples.bashNoTagStreamLayered.imageTag}'"
)
docker.succeed(
"docker rmi ${examples.bashNoTagStreamLayered.imageName}:${examples.bashNoTagStreamLayered.imageTag}"
)
docker.succeed(
"docker load --input='${examples.nixLayered}'"
)
docker.succeed("docker images --format '{{.Tag}}' | grep -F '${examples.nixLayered.imageTag}'")
docker.succeed("docker rmi ${examples.nixLayered.imageName}")
with subtest(
"Check if the nix store is correctly initialized by listing "
"dependencies of the installed Nix binary"
):
docker.succeed(
"docker load --input='${examples.nix}'",
"docker run --rm ${examples.nix.imageName} nix-store -qR ${pkgs.nix}",
"docker rmi ${examples.nix.imageName}",
)
with subtest(
"Ensure (layered) nix store has correct permissions "
"and that the container starts when its process does not have uid 0"
):
docker.succeed(
"docker load --input='${examples.bashLayeredWithUser}'",
"docker run -u somebody --rm ${examples.bashLayeredWithUser.imageName} ${pkgs.bash}/bin/bash -c 'test 555 == $(stat --format=%a /nix) && test 555 == $(stat --format=%a /nix/store)'",
"docker rmi ${examples.bashLayeredWithUser.imageName}",
)
with subtest("The nix binary symlinks are intact"):
docker.succeed(
"docker load --input='${examples.nix}'",
"docker run --rm ${examples.nix.imageName} ${pkgs.bash}/bin/bash -c 'test nix == $(readlink ${pkgs.nix}/bin/nix-daemon)'",
"docker rmi ${examples.nix.imageName}",
)
with subtest("The nix binary symlinks are intact when the image is layered"):
docker.succeed(
"docker load --input='${examples.nixLayered}'",
"docker run --rm ${examples.nixLayered.imageName} ${pkgs.bash}/bin/bash -c 'test nix == $(readlink ${pkgs.nix}/bin/nix-daemon)'",
"docker rmi ${examples.nixLayered.imageName}",
)
with subtest("The pullImage tool works"):
docker.succeed(
"docker load --input='${examples.nixFromDockerHub}'",
"docker run --rm nix:2.2.1 nix-store --version",
"docker rmi nix:2.2.1",
)
with subtest("runAsRoot and entry point work"):
docker.succeed(
"docker load --input='${examples.nginx}'",
"docker run --name nginx -d -p 8000:80 ${examples.nginx.imageName}",
)
docker.wait_until_succeeds("curl http://localhost:8000/")
docker.succeed(
"docker rm --force nginx", "docker rmi '${examples.nginx.imageName}'",
)
with subtest("A pulled image can be used as base image"):
docker.succeed(
"docker load --input='${examples.onTopOfPulledImage}'",
"docker run --rm ontopofpulledimage hello",
"docker rmi ontopofpulledimage",
)
with subtest("Regression test for issue #34779"):
docker.succeed(
"docker load --input='${examples.runAsRootExtraCommands}'",
"docker run --rm runasrootextracommands cat extraCommands",
"docker run --rm runasrootextracommands cat runAsRoot",
"docker rmi '${examples.runAsRootExtraCommands.imageName}'",
)
with subtest("Ensure Docker images can use an unstable date"):
docker.succeed(
"docker load --input='${examples.unstableDate}'"
)
assert unix_time_second1 not in docker.succeed(
"docker inspect ${examples.unstableDate.imageName} "
+ "| ${pkgs.jq}/bin/jq -r .[].Created"
)
with subtest("Ensure Layered Docker images can use an unstable date"):
docker.succeed(
"docker load --input='${examples.unstableDateLayered}'"
)
assert unix_time_second1 not in docker.succeed(
"docker inspect ${examples.unstableDateLayered.imageName} "
+ "| ${pkgs.jq}/bin/jq -r .[].Created"
)
with subtest("Ensure Layered Docker images work"):
docker.succeed(
"docker load --input='${examples.layered-image}'",
"docker run --rm ${examples.layered-image.imageName}",
"docker run --rm ${examples.layered-image.imageName} cat extraCommands",
)
with subtest("Ensure building an image on top of a layered Docker images work"):
docker.succeed(
"docker load --input='${examples.layered-on-top}'",
"docker run --rm ${examples.layered-on-top.imageName}",
)
def set_of_layers(image_name):
return set(
docker.succeed(
f"docker inspect {image_name} "
+ "| ${pkgs.jq}/bin/jq -r '.[] | .RootFS.Layers | .[]'"
).split()
)
with subtest("Ensure layers are shared between images"):
docker.succeed(
"docker load --input='${examples.another-layered-image}'"
)
layers1 = set_of_layers("${examples.layered-image.imageName}")
layers2 = set_of_layers("${examples.another-layered-image.imageName}")
assert bool(layers1 & layers2)
with subtest("Ensure order of layers is correct"):
docker.succeed(
"docker load --input='${examples.layersOrder}'"
)
for index in 1, 2, 3:
assert f"layer{index}" in docker.succeed(
f"docker run --rm ${examples.layersOrder.imageName} cat /tmp/layer{index}"
)
with subtest("Ensure environment variables are correctly inherited"):
docker.succeed(
"docker load --input='${examples.environmentVariables}'"
)
out = docker.succeed("docker run --rm ${examples.environmentVariables.imageName} env")
env = out.splitlines()
assert "FROM_PARENT=true" in env, "envvars from the parent should be preserved"
assert "FROM_CHILD=true" in env, "envvars from the child should be preserved"
assert "LAST_LAYER=child" in env, "envvars from the child should take priority"
with subtest("Ensure image with only 2 layers can be loaded"):
docker.succeed(
"docker load --input='${examples.two-layered-image}'"
)
with subtest(
"Ensure the bulk layer doesn't miss store paths (regression test for #78744)"
):
docker.succeed(
"docker load --input='${pkgs.dockerTools.examples.bulk-layer}'",
# Ensure the two output paths (ls and hello) are in the layer
"docker run bulk-layer ls /bin/hello",
)
with subtest("Ensure correct behavior when no store is needed"):
# This check tests two requirements simultaneously
# 1. buildLayeredImage can build images that don't need a store.
# 2. Layers of symlinks are eliminated by the customization layer.
#
docker.succeed(
"docker load --input='${pkgs.dockerTools.examples.no-store-paths}'"
)
# Busybox will not recognize argv[0] and print an error message with argv[0],
# but it confirms that the custom-true symlink is present.
docker.succeed("docker run --rm no-store-paths custom-true |& grep custom-true")
# This check may be loosened to allow an *empty* store rather than *no* store.
docker.succeed("docker run --rm no-store-paths ls /")
docker.fail("docker run --rm no-store-paths ls /nix/store")
with subtest("Ensure buildLayeredImage does not change store path contents."):
docker.succeed(
"docker load --input='${pkgs.dockerTools.examples.filesInStore}'",
"docker run --rm file-in-store nix-store --verify --check-contents",
"docker run --rm file-in-store |& grep 'some data'",
)
'';
})
|