nixos/datadog-agent: Fix restartTriggers

Fixes #85800

1d61efb7f177f7b70c467ab4940fde0a3481d4dc accidentially changed the
restartTriggers of `datadog-agent.service` to point to the attribute
name (in this case, a location relative to `/etc`), instead of the
location of the config files in the nix store.

This caused datadog to not get restarted on activation of new
config, if the file name hasn't changed.

Fix this, by pointing this back to the location in the nix store.

1 files changed, 1 insertions, 1 deletions

diff --git a/nixos/modules/services/monitoring/datadog-agent.nix b/nixos/modules/services/monitoring/datadog-agent.nix
index 2c5fe47242e..f1cb890794e 100644
--- a/nixos/modules/services/monitoring/datadog-agent.nix
+++ b/nixos/modules/services/monitoring/datadog-agent.nix
@@ -225,7 +225,7 @@ in {
           Restart = "always";
           RestartSec = 2;
         };
-        restartTriggers = [ datadogPkg ] ++ attrNames etcfiles;
+        restartTriggers = [ datadogPkg ] ++  map (x: x.source) (attrValues etcfiles);
       } attrs;
     in {
       datadog-agent = makeService {