Monitoring data can now be stored in `metrics-*` patterns when collected through elastic-agent. [Our documentation](https://www.elastic.co/guide/en/kibana/current/monitoring-data.html) recommends to use the `monitoring_user` role to view the data in Stack Monitoring application but that role does not have permissions to read from the metrics pattern.

`monitoring_user` should be allowed the same permissions on `metrics-*` as `.monitoring-*`
x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authz/RBACEngineTests.java
assertThat(response.getDetails().index().values(), Matchers.iterableWithSize(3));
        assertThat(
            response.getDetails().index().values(),
            containsInAnyOrder(
                ResourcePrivileges.builder("apache-2016-12")
                    .addPrivileges(
                        MapBuilder.newMapBuilder(new TreeMap<String, Boolean>())
                            .put("create_doc", true)
                            .put("index", true)
                            .put("delete", true)
                            .map()
                    )
                    .build(),
                ResourcePrivileges.builder("apache-2017-01")
                    .addPrivileges(
                        MapBuilder.newMapBuilder(new TreeMap<String, Boolean>())
                            .put("create_doc", true)
                            .put("index", true)
                            .put("delete", false)
                            .map()
                    )
                    .build(),
                ResourcePrivileges.builder("other")
                    .addPrivileges(
                        MapBuilder.newMapBuilder(new TreeMap<String, Boolean>())
                            .put("create_doc", true)
                            .put("index", false)
                            .put("delete", false)
                            .map()
                    )