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nixos/hosts/traefik/promtail.nix

@@ -0,0 +1,27 @@
+{ config, lib, pkgs, ... }:
+
+{
+
+  # This ensures the directory exists at boot, owned by traefik (writer) and readable by promtail.
+  systemd.tmpfiles.rules = [
+    "d /var/log/traefik 0755 traefik promtail -"
+  ];
+
+  services.promtail.configuration.scrape_configs = lib.mkAfter [
+    {
+      job_name = "traefik";
+      static_configs = [
+        {
+          targets = [ "localhost" ];
+          labels = {
+            job = "traefik";
+            host = config.networking.hostName;
+            env = "proxmox";
+            instance = "${config.networking.hostName}.local"; # prometheus scrape target
+            __path__ = "/var/log/traefik/*.log";
+          };
+        }
+      ];
+    }
+  ];
+}