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import ../make-test-python.nix ({ pkgs, lib, ... } :
let
releases = import ../../release.nix {
configuration = {
# Building documentation makes the test unnecessarily take a longer time:
documentation.enable = lib.mkForce false;
};
};
container-image-metadata = releases.lxdContainerMeta.${pkgs.stdenv.hostPlatform.system};
container-image-rootfs = releases.lxdContainerImage.${pkgs.stdenv.hostPlatform.system};
in
{
name = "incus-container";
meta.maintainers = with lib.maintainers; [ adamcstephens ];
nodes.machine = { ... }: {
virtualisation = {
# Ensure test VM has enough resources for creating and managing guests
cores = 2;
memorySize = 1024;
diskSize = 4096;
incus.enable = true;
};
};
testScript = ''
def instance_is_up(_) -> bool:
status, _ = machine.execute("incus exec container --disable-stdin --force-interactive /run/current-system/sw/bin/true")
return status == 0
def set_container(config):
machine.succeed(f"incus config set container {config}")
machine.succeed("incus restart container")
with machine.nested("Waiting for instance to start and be usable"):
retry(instance_is_up)
machine.wait_for_unit("incus.service")
# no preseed should mean no service
machine.fail("systemctl status incus-preseed.service")
machine.succeed("incus admin init --minimal")
with subtest("Container image can be imported"):
machine.succeed("incus image import ${container-image-metadata}/*/*.tar.xz ${container-image-rootfs}/*/*.tar.xz --alias nixos")
with subtest("Container can be launched and managed"):
machine.succeed("incus launch nixos container")
with machine.nested("Waiting for instance to start and be usable"):
retry(instance_is_up)
machine.succeed("echo true | incus exec container /run/current-system/sw/bin/bash -")
with subtest("Container CPU limits can be managed"):
set_container("limits.cpu 1")
cpuinfo = machine.succeed("incus exec container grep -- -c ^processor /proc/cpuinfo").strip()
assert cpuinfo == "1", f"Wrong number of CPUs reported from /proc/cpuinfo, want: 1, got: {cpuinfo}"
set_container("limits.cpu 2")
cpuinfo = machine.succeed("incus exec container grep -- -c ^processor /proc/cpuinfo").strip()
assert cpuinfo == "2", f"Wrong number of CPUs reported from /proc/cpuinfo, want: 2, got: {cpuinfo}"
with subtest("Container memory limits can be managed"):
set_container("limits.memory 64MB")
meminfo = machine.succeed("incus exec container grep -- MemTotal /proc/meminfo").strip()
meminfo_bytes = " ".join(meminfo.split(' ')[-2:])
assert meminfo_bytes == "62500 kB", f"Wrong amount of memory reported from /proc/meminfo, want: '62500 kB', got: '{meminfo_bytes}'"
set_container("limits.memory 128MB")
meminfo = machine.succeed("incus exec container grep -- MemTotal /proc/meminfo").strip()
meminfo_bytes = " ".join(meminfo.split(' ')[-2:])
assert meminfo_bytes == "125000 kB", f"Wrong amount of memory reported from /proc/meminfo, want: '125000 kB', got: '{meminfo_bytes}'"
'';
})
|