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9258f57625
This allows us to set things like dependencies in a way that we can catch typos at eval time. So instead of ```nix systemd.services.foo.wants = [ "bar.service" ]; ``` we can write ```nix systemd.services.foo.wants = [ config.systemd.services.bar.name ]; ``` which will throw an error if no such service has been defined. Not all cases can be done like this (eg template services), but in a lot of cases this will allow to avoid typos. There is a matching option on the unit option (`systemd.units."foo.service".name`) as well.
215 lines
8.0 KiB
Nix
215 lines
8.0 KiB
Nix
import ./make-test-python.nix ({ pkgs, ... }: {
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name = "systemd";
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nodes.machine = { config, lib, ... }: {
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imports = [ common/user-account.nix common/x11.nix ];
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virtualisation.emptyDiskImages = [ 512 512 ];
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environment.systemPackages = [ pkgs.cryptsetup ];
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virtualisation.fileSystems = {
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"/test-x-initrd-mount" = {
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device = "/dev/vdb";
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fsType = "ext2";
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autoFormat = true;
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noCheck = true;
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options = [ "x-initrd.mount" ];
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};
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};
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systemd.extraConfig = "DefaultEnvironment=\"XXX_SYSTEM=foo\"";
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systemd.user.extraConfig = "DefaultEnvironment=\"XXX_USER=bar\"";
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services.journald.extraConfig = "Storage=volatile";
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test-support.displayManager.auto.user = "alice";
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systemd.shutdown.test = pkgs.writeScript "test.shutdown" ''
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#!${pkgs.runtimeShell}
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PATH=${lib.makeBinPath (with pkgs; [ util-linux coreutils ])}
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mount -t 9p shared -o trans=virtio,version=9p2000.L /tmp/shared
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touch /tmp/shared/shutdown-test
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umount /tmp/shared
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'';
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systemd.services.oncalendar-test = {
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description = "calendar test";
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# Japan does not have DST which makes the test a little bit simpler
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startAt = "Wed 10:00 Asia/Tokyo";
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script = "true";
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};
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systemd.services.testDependency1 = {
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description = "Test Dependency 1";
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wantedBy = [ config.systemd.services."testservice1".name ];
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serviceConfig.Type = "oneshot";
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script = ''
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true
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'';
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};
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systemd.services.testservice1 = {
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description = "Test Service 1";
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wantedBy = [ config.systemd.targets.multi-user.name ];
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serviceConfig.Type = "oneshot";
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script = ''
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if [ "$XXX_SYSTEM" = foo ]; then
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touch /system_conf_read
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fi
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'';
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};
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systemd.user.services.testservice2 = {
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description = "Test Service 2";
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wantedBy = [ "default.target" ];
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serviceConfig.Type = "oneshot";
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script = ''
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if [ "$XXX_USER" = bar ]; then
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touch "$HOME/user_conf_read"
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fi
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'';
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};
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systemd.watchdog = {
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device = "/dev/watchdog";
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runtimeTime = "30s";
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rebootTime = "10min";
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kexecTime = "5min";
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};
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};
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testScript = ''
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import re
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import subprocess
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machine.wait_for_x()
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# wait for user services
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machine.wait_for_unit("default.target", "alice")
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with subtest("systemctl edit suggests --runtime"):
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# --runtime is suggested when using `systemctl edit`
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ret, out = machine.execute("systemctl edit testservice1.service 2>&1")
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assert ret == 1
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assert out.rstrip("\n") == "The unit-directory '/etc/systemd/system' is read-only on NixOS, so it's not possible to edit system-units directly. Use 'systemctl edit --runtime' instead."
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# editing w/o `--runtime` is possible for user-services, however
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# it's not possible because we're not in a tty when grepping
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# (i.e. hacky way to ensure that the error from above doesn't appear here).
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_, out = machine.execute("systemctl --user edit testservice2.service 2>&1")
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assert out.rstrip("\n") == "Cannot edit units if not on a tty."
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# Regression test for https://github.com/NixOS/nixpkgs/issues/105049
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with subtest("systemd reads timezone database in /etc/zoneinfo"):
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timer = machine.succeed("TZ=UTC systemctl show --property=TimersCalendar oncalendar-test.timer")
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assert re.search("next_elapse=Wed ....-..-.. 01:00:00 UTC", timer), f"got {timer.strip()}"
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# Regression test for https://github.com/NixOS/nixpkgs/issues/35415
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with subtest("configuration files are recognized by systemd"):
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machine.succeed("test -e /system_conf_read")
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machine.succeed("test -e /home/alice/user_conf_read")
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machine.succeed("test -z $(ls -1 /var/log/journal)")
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with subtest("regression test for https://bugs.freedesktop.org/show_bug.cgi?id=77507"):
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retcode, output = machine.execute("systemctl status testservice1.service")
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assert retcode in [0, 3] # https://bugs.freedesktop.org/show_bug.cgi?id=77507
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# Regression test for https://github.com/NixOS/nixpkgs/issues/35268
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with subtest("file system with x-initrd.mount is not unmounted"):
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machine.succeed("mountpoint -q /test-x-initrd-mount")
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machine.shutdown()
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subprocess.check_call(
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[
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"qemu-img",
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"convert",
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"-O",
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"raw",
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"vm-state-machine/empty0.qcow2",
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"x-initrd-mount.raw",
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]
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)
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extinfo = subprocess.check_output(
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[
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"${pkgs.e2fsprogs}/bin/dumpe2fs",
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"x-initrd-mount.raw",
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]
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).decode("utf-8")
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assert (
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re.search(r"^Filesystem state: *clean$", extinfo, re.MULTILINE) is not None
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), ("File system was not cleanly unmounted: " + extinfo)
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# Regression test for https://github.com/NixOS/nixpkgs/pull/91232
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with subtest("setting transient hostnames works"):
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machine.succeed("hostnamectl set-hostname --transient machine-transient")
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machine.fail("hostnamectl set-hostname machine-all")
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with subtest("systemd-shutdown works"):
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machine.shutdown()
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machine.wait_for_unit("multi-user.target")
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machine.succeed("test -e /tmp/shared/shutdown-test")
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# Test settings from /etc/sysctl.d/50-default.conf are applied
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with subtest("systemd sysctl settings are applied"):
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machine.wait_for_unit("multi-user.target")
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assert "fq_codel" in machine.succeed("sysctl net.core.default_qdisc")
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# Test systemd is configured to manage a watchdog
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with subtest("systemd manages hardware watchdog"):
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machine.wait_for_unit("multi-user.target")
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# It seems that the device's path doesn't appear in 'systemctl show' so
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# check it separately.
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assert "WatchdogDevice=/dev/watchdog" in machine.succeed(
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"cat /etc/systemd/system.conf"
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)
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output = machine.succeed("systemctl show | grep Watchdog")
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# assert "RuntimeWatchdogUSec=30s" in output
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# for some reason RuntimeWatchdogUSec, doesn't seem to be updated in here.
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assert "RebootWatchdogUSec=10min" in output
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assert "KExecWatchdogUSec=5min" in output
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# Test systemd cryptsetup support
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with subtest("systemd successfully reads /etc/crypttab and unlocks volumes"):
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# create a luks volume and put a filesystem on it
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machine.succeed(
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"echo -n supersecret | cryptsetup luksFormat -q /dev/vdc -",
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"echo -n supersecret | cryptsetup luksOpen --key-file - /dev/vdc foo",
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"mkfs.ext3 /dev/mapper/foo",
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)
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# create a keyfile and /etc/crypttab
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machine.succeed("echo -n supersecret > /var/lib/luks-keyfile")
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machine.succeed("chmod 600 /var/lib/luks-keyfile")
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machine.succeed("echo 'luks1 /dev/vdc /var/lib/luks-keyfile luks' > /etc/crypttab")
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# after a reboot, systemd should unlock the volume and we should be able to mount it
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machine.shutdown()
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machine.succeed("systemctl status systemd-cryptsetup@luks1.service")
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machine.succeed("mkdir -p /tmp/luks1")
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machine.succeed("mount /dev/mapper/luks1 /tmp/luks1")
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# Do some IP traffic
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output_ping = machine.succeed(
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"systemd-run --wait -- ping -c 1 127.0.0.1 2>&1"
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)
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with subtest("systemd reports accounting data on system.slice"):
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output = machine.succeed("systemctl status system.slice")
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assert "CPU:" in output
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assert "Memory:" in output
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assert "IP:" in output
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assert "0B in, 0B out" not in output
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assert "IO:" in output
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assert "0B read, 0B written" not in output
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with subtest("systemd per-unit accounting works"):
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assert "IP traffic received: 84B" in output_ping
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assert "IP traffic sent: 84B" in output_ping
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with subtest("systemd environment is properly set"):
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machine.systemctl("daemon-reexec") # Rewrites /proc/1/environ
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machine.succeed("grep -q TZDIR=/etc/zoneinfo /proc/1/environ")
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'';
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})
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