nixos/rsyslogd & nixos/syslog-ng: fix broken module (#47306)

* journald: forward message to syslog by default if a syslog implementation is installed

* added a test to ensure rsyslog is receiving messages when expected

* added rsyslogd tests to release.nix

1 files changed, 37 insertions, 0 deletions

diff --git a/nixos/tests/rsyslogd.nix b/nixos/tests/rsyslogd.nix
new file mode 100644
index 000000000000..4836419f0c2f
--- /dev/null
+++ b/nixos/tests/rsyslogd.nix
@@ -0,0 +1,37 @@
+{ system ? builtins.currentSystem }:
+
+with import ../lib/testing.nix { inherit system; };
+{
+  test1 = makeTest {
+    name = "rsyslogd-test1";
+    meta.maintainers = [ lib.maintainers.aanderse ];
+
+    machine =
+      { config, pkgs, ... }:
+      { services.rsyslogd.enable = true;
+        services.journald.forwardToSyslog = false;
+      };
+
+    # ensure rsyslogd isn't receiving messages from journald if explicitly disabled
+    testScript = ''
+      $machine->waitForUnit("default.target");
+      $machine->fail("test -f /var/log/messages");
+    '';
+  };
+
+  test2 = makeTest {
+    name = "rsyslogd-test2";
+    meta.maintainers = [ lib.maintainers.aanderse ];
+
+    machine =
+      { config, pkgs, ... }:
+      { services.rsyslogd.enable = true;
+      };
+
+    # ensure rsyslogd is receiving messages from journald
+    testScript = ''
+      $machine->waitForUnit("default.target");
+      $machine->succeed("test -f /var/log/messages");
+    '';
+  };
+}