nixos/prometheus-exporters: fix nginx exporter startup

When nginx is enabled on the same host the nginx exporter is,
the exporter needs to start after nginx.

1 files changed, 3 insertions, 0 deletions

diff --git a/nixos/modules/services/monitoring/prometheus/exporters.nix b/nixos/modules/services/monitoring/prometheus/exporters.nix
index 35b513bac571..53f32b8fadc7 100644
--- a/nixos/modules/services/monitoring/prometheus/exporters.nix
+++ b/nixos/modules/services/monitoring/prometheus/exporters.nix
@@ -197,6 +197,9 @@ in
     services.prometheus.exporters.minio.minioAccessSecret = mkDefault config.services.minio.secretKey;
   })] ++ [(mkIf config.services.rspamd.enable {
     services.prometheus.exporters.rspamd.url = mkDefault "http://localhost:11334/stat";
+  })] ++ [(mkIf config.services.nginx.enable {
+    systemd.services.prometheus-nginx-exporter.after = [ "nginx.service" ];
+    systemd.services.prometheus-nginx-exporter.requires = [ "nginx.service" ];
   })] ++ (mapAttrsToList (name: conf:
     mkExporterConf {
       inherit name;