Definition export: include virtual host metadata

when exporting over the HTTP API. CLI tools
use rabbit_definitions:all_definitions/0 which
already include the metadata.

Closes #10515

deps/rabbit/src/rabbit_vhost.erl

@@ -606,6 +606,7 @@ i(description, VHost) -> vhost:get_description(VHost);
 i(tags, VHost) -> vhost:get_tags(VHost);
 i(default_queue_type, VHost) -> vhost:get_default_queue_type(VHost);
 i(metadata, VHost) -> vhost:get_metadata(VHost);
+i(limits, VHost) -> vhost:get_limits(VHost);
 i(Item, VHost)     ->
   rabbit_log:error("Don't know how to compute a virtual host info item '~ts' for virtual host '~tp'", [Item, VHost]),
   throw({bad_argument, Item}).

deps/rabbitmq_management/src/rabbit_mgmt_wm_definitions.erl

@@ -254,7 +254,7 @@ export_name(_Name)                -> true.
 
 rw_state() ->
     [{users,              [name, password_hash, hashing_algorithm, tags, limits]},
-     {vhosts,             [name]},
+     {vhosts,             [name, metadata, default_queue_type, limits]},
      {permissions,        [user, vhost, configure, write, read]},
      {topic_permissions,  [user, vhost, exchange, write, read]},
      {parameters,         [vhost, component, name, value]},

deps/rabbitmq_management/src/rabbit_mgmt_wm_vhosts.erl

@@ -66,4 +66,6 @@ augmented(ReqData, #context{user = User}) ->
     end.
 
 basic() ->
-    rabbit_vhost:info_all([name]).
+    %% when updating this list, make sure to also update
+    %% rabbit_mgmt_wm_definitions:rw_state/0
+    rabbit_vhost:info_all([name, metadata, default_queue_type, limits]).