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# This runs to two scenarios but in one tests:
# - A post-sysinit service needs to be restarted AFTER tmpfiles was restarted.
# - A service needs to be restarted BEFORE tmpfiles is restarted
{ lib, ... }:
let
makeGeneration = generation: {
"${generation}".configuration = {
systemd.services.pre-sysinit-before-tmpfiles.environment.USER =
lib.mkForce "${generation}-tmpfiles-user";
systemd.services.pre-sysinit-after-tmpfiles.environment = {
NEEDED_PATH = lib.mkForce "/run/${generation}-needed-by-pre-sysinit-after-tmpfiles";
PATH_TO_CREATE = lib.mkForce "/run/${generation}-needed-by-post-sysinit";
};
systemd.services.post-sysinit.environment = {
NEEDED_PATH = lib.mkForce "/run/${generation}-needed-by-post-sysinit";
PATH_TO_CREATE = lib.mkForce "/run/${generation}-created-by-post-sysinit";
};
systemd.tmpfiles.settings.test = lib.mkForce {
"/run/${generation}-needed-by-pre-sysinit-after-tmpfiles".f.user =
"${generation}-tmpfiles-user";
};
};
};
in
{
name = "sysinit-reactivation";
meta.maintainers = with lib.maintainers; [ nikstur ];
nodes.machine = { config, lib, pkgs, ... }: {
systemd.services.pre-sysinit-before-tmpfiles = {
wantedBy = [ "sysinit.target" ];
requiredBy = [ "sysinit-reactivation.target" ];
before = [ "systemd-tmpfiles-setup.service" "systemd-tmpfiles-resetup.service" ];
unitConfig.DefaultDependencies = false;
serviceConfig.Type = "oneshot";
serviceConfig.RemainAfterExit = true;
environment.USER = "tmpfiles-user";
script = "${pkgs.shadow}/bin/useradd $USER";
};
systemd.services.pre-sysinit-after-tmpfiles = {
wantedBy = [ "sysinit.target" ];
requiredBy = [ "sysinit-reactivation.target" ];
after = [ "systemd-tmpfiles-setup.service" "systemd-tmpfiles-resetup.service" ];
unitConfig.DefaultDependencies = false;
serviceConfig.Type = "oneshot";
serviceConfig.RemainAfterExit = true;
environment = {
NEEDED_PATH = "/run/needed-by-pre-sysinit-after-tmpfiles";
PATH_TO_CREATE = "/run/needed-by-post-sysinit";
};
script = ''
if [[ -e $NEEDED_PATH ]]; then
touch $PATH_TO_CREATE
fi
'';
};
systemd.services.post-sysinit = {
wantedBy = [ "default.target" ];
serviceConfig.Type = "oneshot";
serviceConfig.RemainAfterExit = true;
environment = {
NEEDED_PATH = "/run/needed-by-post-sysinit";
PATH_TO_CREATE = "/run/created-by-post-sysinit";
};
script = ''
if [[ -e $NEEDED_PATH ]]; then
touch $PATH_TO_CREATE
fi
'';
};
systemd.tmpfiles.settings.test = {
"/run/needed-by-pre-sysinit-after-tmpfiles".f.user =
"tmpfiles-user";
};
specialisation = lib.mkMerge [
(makeGeneration "second")
(makeGeneration "third")
];
};
testScript = { nodes, ... }: ''
def switch(generation):
toplevel = "${nodes.machine.system.build.toplevel}";
machine.succeed(f"{toplevel}/specialisation/{generation}/bin/switch-to-configuration switch")
machine.wait_for_unit("default.target")
machine.succeed("test -e /run/created-by-post-sysinit")
switch("second")
machine.succeed("test -e /run/second-created-by-post-sysinit")
switch("third")
machine.succeed("test -e /run/third-created-by-post-sysinit")
'';
}
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