[metrics] Gets Loki and Prometheus set up with Grafana

system/hosts/mcp/containers/prometheus.nix

@@ -1,9 +1,10 @@
-{ config, pkgs, ... }:
-let inherit (import ./lib.nix config) mkContainer; in
+{ config, ... }:
+let inherit (import ./lib.nix config) mkContainer blazestar; in
 {
   virtualisation.oci-containers.containers.prometheus = mkContainer {
     image = "prom/prometheus";
     hostName = "prometheus";
+    domain = blazestar;
     port = 9090;
     volumes = [
       "/tank/config/prometheus:/etc/prometheus"
@@ -17,4 +18,4 @@ let inherit (import ./lib.nix config) mkContainer; in
       description = "Prometheus monitoring";
     };
   };
-}
+}