add mattermost listening address

systems/palatine-hill/mattermost.nix

@@ -15,5 +15,6 @@ in
       driver = "postgres";
     };
     dataDir = "${vars.primary_mattermost}/mattermost";
+    host = "0.0.0.0";
   };
 }

systems/palatine-hill/zfs.nix

@@ -31,6 +31,7 @@
         "ZFS-primary/docker".useTemplate = [ "production" ];
         "ZFS-primary/hydra".useTemplate = [ "nix-prod" ];
         "ZFS-primary/nextcloud".useTemplate = [ "production" ];
+        "ZFS-primary/mattermost".useTemplate = [ "production" ];
         # all docker containers should have a bind mount if they expect lasting zfs snapshots
         "ZFS-primary/vardocker".useTemplate = [ "nix-prod" ];
         "ZFS-primary/minio".useTemplate = [ "nix-prod" ];