nixpkgs/nixos/tests/systemd-timesyncd.nix

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# Regression test for systemd-timesync having moved the state directory without
# upstream providing a migration path. https://github.com/systemd/systemd/issues/12131
import ./make-test-python.nix (let
common = { lib, ... }: {
# override the `false` value from the qemu-vm base profile
services.timesyncd.enable = lib.mkForce true;
};
mkVM = conf: { imports = [ conf common ]; };
in {
name = "systemd-timesyncd";
nodes = {
current = mkVM {};
pre1909 = mkVM ({lib, ... }: with lib; {
# create the path that should be migrated by our activation script when
# upgrading to a newer nixos version
system.stateVersion = "19.03";
system.activationScripts.simulate-old-timesync-state-dir = mkBefore ''
rm -f /var/lib/systemd/timesync
mkdir -p /var/lib/systemd /var/lib/private/systemd/timesync
ln -s /var/lib/private/systemd/timesync /var/lib/systemd/timesync
chown systemd-timesync: /var/lib/private/systemd/timesync
'';
});
};
testScript = ''
start_all()
current.succeed("systemctl status systemd-timesyncd.service")
# on a new install with a recent systemd there should not be any
# leftovers from the dynamic user mess
current.succeed("test -e /var/lib/systemd/timesync")
current.succeed("test ! -L /var/lib/systemd/timesync")
# timesyncd should be running on the upgrading system since we fixed the
# file bits in the activation script
pre1909.succeed("systemctl status systemd-timesyncd.service")
# the path should be gone after the migration
pre1909.succeed("test ! -e /var/lib/private/systemd/timesync")
# and the new path should no longer be a symlink
pre1909.succeed("test -e /var/lib/systemd/timesync")
pre1909.succeed("test ! -L /var/lib/systemd/timesync")
# after a restart things should still work and not fail in the activation
# scripts and cause the boot to fail..
pre1909.shutdown()
pre1909.start()
pre1909.succeed("systemctl status systemd-timesyncd.service")
'';
})