rabbitmq: add option to enable management plugin

nixos/modules/services/amqp/rabbitmq.nix

@@ -134,6 +134,28 @@ in
         type = types.listOf types.path;
         description = "The list of directories containing external plugins";
       };
+
+      managementPlugin = mkOption {
+        description = "The options to run the management plugin";
+        type = types.submodule {
+          options = {
+            enable = mkOption {
+              default = false;
+              type = types.bool;
+              description = ''
+                Whether to enable the management plugin
+              '';
+            };
+            port = mkOption {
+              default = 15672;
+              type = types.port;
+              description = ''
+                On which port to run the management plugin
+              '';
+            };
+          };
+        };
+      };
     };
   };
 
@@ -158,8 +180,13 @@ in
 
     services.rabbitmq.configItems = {
       "listeners.tcp.1" = mkDefault "${cfg.listenAddress}:${toString cfg.port}";
+    } // optionalAttrs cfg.managementPlugin.enable {
+      "management.tcp.port" = toString cfg.managementPlugin.port;
+      "management.tcp.ip" = cfg.listenAddress;
     };
 
+    services.rabbitmq.plugins = optional cfg.managementPlugin.enable "rabbitmq_management";
+
     systemd.services.rabbitmq = {
       description = "RabbitMQ Server";
 

nixos/tests/rabbitmq.nix

@@ -7,7 +7,10 @@ import ./make-test-python.nix ({ pkgs, ... }: {
   };
 
   machine = {
-    services.rabbitmq.enable = true;
+    services.rabbitmq = {
+      enable = true;
+      managementPlugin.enable = true;
+    };
     # Ensure there is sufficient extra disk space for rabbitmq to be happy
     virtualisation.diskSize = 1024;
   };
@@ -19,5 +22,6 @@ import ./make-test-python.nix ({ pkgs, ... }: {
     machine.wait_until_succeeds(
         'su -s ${pkgs.runtimeShell} rabbitmq -c "rabbitmqctl status"'
     )
+    machine.wait_for_open_port("15672")
   '';
 })