Merge pull request #5020 from jsanda/prometheus-endpoint-config

Automatic merge from submit-queue.

Prometheus endpoint config for hawkular-metrics and cassandra

Prometheus endpoints are exposed in hawkular-metrics and in cassandra by default. This PR adds options to disable them.

roles/openshift_metrics/defaults/main.yaml

@@ -61,3 +61,6 @@ openshift_metrics_cassandra_pvc_access: "{{ openshift_metrics_storage_access_mod
 openshift_metrics_hawkular_user_write_access: False
 
 openshift_metrics_heapster_allowed_users: system:master-proxy
+
+openshift_metrics_cassandra_enable_prometheus_endpoint: True
+openshift_metrics_hawkular_enable_prometheus_endpoint: True

roles/openshift_metrics/templates/hawkular_cassandra_rc.j2

@@ -56,6 +56,8 @@ spec:
           value: "/cassandra_data"
         - name: JVM_OPTS
           value: "-Dcassandra.commitlog.ignorereplayerrors=true"
+        - name: ENABLE_PROMETHEUS_ENDPOINT
+          value: "{{ openshift_metrics_cassandra_enable_prometheus_endpoint }}"
         - name: TRUSTSTORE_NODES_AUTHORITIES
           value: "/hawkular-cassandra-certs/tls.peer.truststore.crt"
         - name: TRUSTSTORE_CLIENT_AUTHORITIES

roles/openshift_metrics/templates/hawkular_metrics_rc.j2

@@ -55,6 +55,7 @@ spec:
         - "-Dcom.datastax.driver.FORCE_NIO=true"
         - "-DKUBERNETES_MASTER_URL={{openshift_metrics_master_url}}"
         - "-DUSER_WRITE_ACCESS={{openshift_metrics_hawkular_user_write_access}}"
+        - "-Dhawkular.metrics.jmx-reporting-enabled"
         env:
         - name: POD_NAMESPACE
           valueFrom:
@@ -66,6 +67,8 @@ spec:
           value: "{{ 17 | oo_random_word }}"
         - name: TRUSTSTORE_AUTHORITIES
           value: "/hawkular-metrics-certs/tls.truststore.crt"
+        - name: ENABLE_PROMETHEUS_ENDPOINT
+          value: "{{ openshift_metrics_hawkular_enable_prometheus_endpoint }}"
         - name: OPENSHIFT_KUBE_PING_NAMESPACE
           valueFrom:
             fieldRef: