common: disable promtail (deprecated). Point auto-upgrade to upgrade branch

common/auto-upgrade.nix

@@ -3,7 +3,7 @@
 {
   system.autoUpgrade = {
     enable = true;
-    flake = "git+https://git.feal.no/felixalb/nixos-config.git";
+    flake = "git+https://git.feal.no/felixalb/nixos-config.git?ref=nixos-26.05"; # TODO - restore to main
     flags = [
       # Override nixpkgs (only). Notably does not include home-manager, sops or other utility/application flake inputs.
       "--refresh"

common/metrics-exporters.nix

@@ -17,41 +17,6 @@ in {
     '';
   };
 
-  services.promtail = {
-    enable = true;
-    configuration = {
-      server = {
-        http_listen_port = 28183;
-        grpc_listen_port = 0;
-      };
-      clients = [
-        {
-          url = "http://${metricsHost}:3100/loki/api/v1/push";
-        }
-      ];
-      scrape_configs = [
-        {
-          job_name = "systemd-journal";
-          journal = {
-            max_age = "12h";
-            labels = {
-              job = "systemd-journal";
-              host = config.networking.hostName;
-            };
-          };
-          relabel_configs = [
-            {
-              source_labels = [ "__journal__systemd_unit" ];
-              target_label = "unit";
-            }
-            {
-              source_labels = [ "__journal_priority_keyword" ];
-              target_label = "level";
-            }
-          ];
-        }
-      ];
-    };
-  };
+  # TODO: Configure fluent-bit or rsyslog
 
 }