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119 lines
3.7 KiB
Nix
119 lines
3.7 KiB
Nix
import ../make-test-python.nix ({ pkgs, lib, ... } :
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let
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releases = import ../../release.nix {
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configuration = {
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# Building documentation makes the test unnecessarily take a longer time:
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documentation.enable = lib.mkForce false;
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# Our tests require `grep` & friends:
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environment.systemPackages = with pkgs; [ busybox ];
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};
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};
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lxd-image-metadata = releases.lxdContainerMeta.${pkgs.stdenv.hostPlatform.system};
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lxd-image-rootfs = releases.lxdContainerImage.${pkgs.stdenv.hostPlatform.system};
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in {
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name = "lxd-container";
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meta = with pkgs.lib.maintainers; {
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maintainers = [ patryk27 adamcstephens ];
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};
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nodes.machine = { lib, ... }: {
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virtualisation = {
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diskSize = 4096;
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# Since we're testing `limits.cpu`, we've gotta have a known number of
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# cores to lean on
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cores = 2;
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# Ditto, for `limits.memory`
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memorySize = 512;
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lxc.lxcfs.enable = true;
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lxd.enable = true;
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};
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};
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testScript = ''
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def instance_is_up(_) -> bool:
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status, _ = machine.execute("lxc exec container --disable-stdin --force-interactive /run/current-system/sw/bin/true")
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return status == 0
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machine.wait_for_unit("sockets.target")
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machine.wait_for_unit("lxd.service")
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machine.wait_for_file("/var/lib/lxd/unix.socket")
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# Wait for lxd to settle
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machine.succeed("lxd waitready")
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machine.succeed("lxd init --minimal")
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machine.succeed(
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"lxc image import ${lxd-image-metadata}/*/*.tar.xz ${lxd-image-rootfs}/*/*.tar.xz --alias nixos"
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)
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with subtest("Container can be managed"):
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machine.succeed("lxc launch nixos container")
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with machine.nested("Waiting for instance to start and be usable"):
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retry(instance_is_up)
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machine.succeed("echo true | lxc exec container /run/current-system/sw/bin/bash -")
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machine.succeed("lxc delete -f container")
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with subtest("Container is mounted with lxcfs inside"):
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machine.succeed("lxc launch nixos container")
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with machine.nested("Waiting for instance to start and be usable"):
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retry(instance_is_up)
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## ---------- ##
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## limits.cpu ##
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machine.succeed("lxc config set container limits.cpu 1")
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machine.succeed("lxc restart container")
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with machine.nested("Waiting for instance to start and be usable"):
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retry(instance_is_up)
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assert (
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"1"
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== machine.succeed("lxc exec container grep -- -c ^processor /proc/cpuinfo").strip()
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)
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machine.succeed("lxc config set container limits.cpu 2")
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machine.succeed("lxc restart container")
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with machine.nested("Waiting for instance to start and be usable"):
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retry(instance_is_up)
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assert (
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"2"
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== machine.succeed("lxc exec container grep -- -c ^processor /proc/cpuinfo").strip()
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)
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## ------------- ##
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## limits.memory ##
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machine.succeed("lxc config set container limits.memory 64MB")
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machine.succeed("lxc restart container")
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with machine.nested("Waiting for instance to start and be usable"):
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retry(instance_is_up)
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assert (
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"MemTotal: 62500 kB"
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== machine.succeed("lxc exec container grep -- MemTotal /proc/meminfo").strip()
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)
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machine.succeed("lxc config set container limits.memory 128MB")
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machine.succeed("lxc restart container")
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with machine.nested("Waiting for instance to start and be usable"):
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retry(instance_is_up)
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assert (
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"MemTotal: 125000 kB"
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== machine.succeed("lxc exec container grep -- MemTotal /proc/meminfo").strip()
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)
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machine.succeed("lxc delete -f container")
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'';
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})
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