Add rabbitmq_endpoint label to rabbitmq_identity_info

Author: mkuratczyk

deps/rabbitmq_prometheus/src/collectors/prometheus_rabbitmq_core_metrics_collector.erl

@@ -304,22 +304,25 @@ collect_mf('detailed', Callback) ->
     collect(true, ?DETAILED_METRIC_NAME_PREFIX, vhosts_filter_from_pdict(), enabled_mfs_from_pdict(?METRICS_RAW), Callback),
     collect(true, ?CLUSTER_METRIC_NAME_PREFIX, vhosts_filter_from_pdict(), enabled_mfs_from_pdict(?METRICS_CLUSTER), Callback),
     %% identity is here to enable filtering on a cluster name (as already happens in existing dashboards)
-    emit_identity_info(Callback),
+    emit_identity_info(<<"detailed">>, Callback),
     ok;
 collect_mf('per-object', Callback) ->
     collect(true, ?METRIC_NAME_PREFIX, false, ?METRICS_RAW, Callback),
     totals(Callback),
-    emit_identity_info(Callback),
+    emit_identity_info(<<"per-object">>, Callback),
     ok;
 collect_mf('memory-breakdown', Callback) ->
     collect(false, ?METRIC_NAME_PREFIX, false, ?METRICS_MEMORY_BREAKDOWN, Callback),
-    emit_identity_info(Callback),
+    emit_identity_info(<<"memory-breakdown">>, Callback),
     ok;
 collect_mf(_Registry, Callback) ->
     PerObjectMetrics = application:get_env(rabbitmq_prometheus, return_per_object_metrics, false),
     collect(PerObjectMetrics, ?METRIC_NAME_PREFIX, false, ?METRICS_RAW, Callback),
     totals(Callback),
-    emit_identity_info(Callback),
+    case PerObjectMetrics of
+        true -> emit_identity_info(<<"per-object">>, Callback);
+        false -> emit_identity_info(<<"aggregated">>, Callback)
+    end,
     ok.
 
 collect(PerObjectMetrics, Prefix, VHostsFilter, IncludedMFs, Callback) ->
@@ -336,9 +339,9 @@ totals(Callback) ->
      end || {Table, Name, Type, Help} <- ?TOTALS],
     ok.
 
-emit_identity_info(Callback) ->
+emit_identity_info(Endpoint, Callback) ->
     add_metric_family(build_info(), Callback),
-    add_metric_family(identity_info(), Callback),
+    add_metric_family(identity_info(Endpoint), Callback),
     ok.
 
 %% Aggregated `auth``_attempt_detailed_metrics` and
@@ -387,7 +390,7 @@ build_info() ->
         }]
     }.
 
-identity_info() ->
+identity_info(Endpoint) ->
     {
         identity_info,
         untyped,
@@ -396,7 +399,8 @@ identity_info() ->
             [
                 {rabbitmq_node, node()},
                 {rabbitmq_cluster, rabbit_nodes:cluster_name()},
-                {rabbitmq_cluster_permanent_id, rabbit_nodes:persistent_cluster_id()}
+                {rabbitmq_cluster_permanent_id, rabbit_nodes:persistent_cluster_id()},
+                {rabbitmq_endpoint, Endpoint}
             ],
             1
         }]