nixpkgs/nixos/tests/containers-imperative.nix
2021-05-09 02:28:14 +02:00

168 lines
6.6 KiB
Nix
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

import ./make-test-python.nix ({ pkgs, lib, ... }: {
name = "containers-imperative";
meta = {
maintainers = with lib.maintainers; [ aristid aszlig eelco kampfschlaefer ];
};
machine =
{ config, pkgs, lib, ... }:
{ imports = [ ../modules/installer/cd-dvd/channel.nix ];
# XXX: Sandbox setup fails while trying to hardlink files from the host's
# store file system into the prepared chroot directory.
nix.useSandbox = false;
nix.binaryCaches = []; # don't try to access cache.nixos.org
virtualisation.writableStore = true;
virtualisation.memorySize = 1024;
# Make sure we always have all the required dependencies for creating a
# container available within the VM, because we don't have network access.
virtualisation.pathsInNixDB = let
emptyContainer = import ../lib/eval-config.nix {
inherit (config.nixpkgs.localSystem) system;
modules = lib.singleton {
containers.foo.config = {
system.stateVersion = "18.03";
};
};
};
in with pkgs; [
stdenv stdenvNoCC emptyContainer.config.containers.foo.path
libxslt desktop-file-utils texinfo docbook5 libxml2
docbook_xsl_ns xorg.lndir documentation-highlighter
];
};
testScript = let
tmpfilesContainerConfig = pkgs.writeText "container-config-tmpfiles" ''
{
systemd.tmpfiles.rules = [ "d /foo - - - - -" ];
systemd.services.foo = {
serviceConfig.Type = "oneshot";
script = "ls -al /foo";
wantedBy = [ "multi-user.target" ];
};
}
'';
brokenCfg = pkgs.writeText "broken.nix" ''
{
assertions = [
{ assertion = false;
message = "I never evaluate";
}
];
}
'';
in ''
with subtest("Make sure we have a NixOS tree (required by nixos-container create)"):
machine.succeed("PAGER=cat nix-env -qa -A nixos.hello >&2")
id1, id2 = None, None
with subtest("Create some containers imperatively"):
id1 = machine.succeed("nixos-container create foo --ensure-unique-name").rstrip()
machine.log(f"created container {id1}")
id2 = machine.succeed("nixos-container create foo --ensure-unique-name").rstrip()
machine.log(f"created container {id2}")
assert id1 != id2
with subtest(f"Put the root of {id2} into a bind mount"):
machine.succeed(
f"mv /var/lib/containers/{id2} /id2-bindmount",
f"mount --bind /id2-bindmount /var/lib/containers/{id1}",
)
ip1 = machine.succeed(f"nixos-container show-ip {id1}").rstrip()
ip2 = machine.succeed(f"nixos-container show-ip {id2}").rstrip()
assert ip1 != ip2
with subtest(
"Create a directory and a file we can later check if it still exists "
+ "after destruction of the container"
):
machine.succeed("mkdir /nested-bindmount")
machine.succeed("echo important data > /nested-bindmount/dummy")
with subtest(
"Create a directory with a dummy file and bind-mount it into both containers."
):
for id in id1, id2:
important_path = f"/var/lib/containers/{id}/very/important/data"
machine.succeed(
f"mkdir -p {important_path}",
f"mount --bind /nested-bindmount {important_path}",
)
with subtest("Start one of them"):
machine.succeed(f"nixos-container start {id1}")
with subtest("Execute commands via the root shell"):
assert "Linux" in machine.succeed(f"nixos-container run {id1} -- uname")
with subtest("Execute a nix command via the root shell. (regression test for #40355)"):
machine.succeed(
f"nixos-container run {id1} -- nix-instantiate -E "
+ '\'derivation { name = "empty"; builder = "false"; system = "false"; }\' '
)
with subtest("Stop and start (regression test for #4989)"):
machine.succeed(f"nixos-container stop {id1}")
machine.succeed(f"nixos-container start {id1}")
# clear serial backlog for next tests
machine.succeed("logger eat console backlog 3ea46eb2-7f82-4f70-b810-3f00e3dd4c4d")
machine.wait_for_console_text(
"eat console backlog 3ea46eb2-7f82-4f70-b810-3f00e3dd4c4d"
)
with subtest("Stop a container early"):
machine.succeed(f"nixos-container stop {id1}")
machine.succeed(f"nixos-container start {id1} &")
machine.wait_for_console_text("Stage 2")
machine.succeed(f"nixos-container stop {id1}")
machine.wait_for_console_text(f"Container {id1} exited successfully")
machine.succeed(f"nixos-container start {id1}")
with subtest("Stop a container without machined (regression test for #109695)"):
machine.systemctl("stop systemd-machined")
machine.succeed(f"nixos-container stop {id1}")
machine.wait_for_console_text(f"Container {id1} has been shut down")
machine.succeed(f"nixos-container start {id1}")
with subtest("tmpfiles are present"):
machine.log("creating container tmpfiles")
machine.succeed(
"nixos-container create tmpfiles --config-file ${tmpfilesContainerConfig}"
)
machine.log("created, starting")
machine.succeed("nixos-container start tmpfiles")
machine.log("done starting, investigating")
machine.succeed(
"echo $(nixos-container run tmpfiles -- systemctl is-active foo.service) | grep -q active;"
)
machine.succeed("nixos-container destroy tmpfiles")
with subtest("Execute commands via the root shell"):
assert "Linux" in machine.succeed(f"nixos-container run {id1} -- uname")
with subtest("Destroy the containers"):
for id in id1, id2:
machine.succeed(f"nixos-container destroy {id}")
with subtest("Check whether destruction of any container has killed important data"):
machine.succeed("grep -qF 'important data' /nested-bindmount/dummy")
with subtest("Ensure that the container path is gone"):
print(machine.succeed("ls -lsa /var/lib/containers"))
machine.succeed(f"test ! -e /var/lib/containers/{id1}")
with subtest("Ensure that a failed container creation doesn'leave any state"):
machine.fail(
"nixos-container create b0rk --config-file ${brokenCfg}"
)
machine.succeed("test ! -e /var/lib/containers/b0rk")
'';
})