anchor.diff:  For instance, if you have a custom install in which the Kubernetes master is not
   available under `https://kubernetes.default.svc:443` you can specify the value
   to use instead with the `*HAWKULAR_METRICS_HOSTNAME*` parameter. If you wish to
  -deploy a version of the metrics components other than _latest_, you can do so
  -with the `*IMAGE_VERSION*` parameter.
  +deploy a specific version of the metrics components, you can do so with the `*IMAGE_VERSION*` parameter.
   
   == Deploying the Metric Components
   
  
positive.code: By default, the OpenShift installer creates this template, and it can be found
  at the following path:
  
  ====
  ----
  /usr/share/ansible/openshift-ansible/roles/openshift_examples/files/examples/v1.1/infrastructure-templates/enterprise/metrics-deployer.yaml
  ----
  ====
  
  You will need to save your completed file with the file name *_metrics.yaml_*.
  
  ====
  [source,yaml,options="nowrap"]
  ----
  apiVersion: "v1"
  kind: "Template"
  metadata:
    name: metrics-deployer-template
    annotations:
      description: "Template for deploying the required Metrics integration. Requires cluster-admin 'metrics-deployer' service account and 'metrics-deployer' secret."
      tags: "infrastructure"
  labels:
    metrics-infra: deployer
    provider: openshift
    component: deployer
  objects:
  -
    apiVersion: v1
    kind: Pod
    metadata:
      generateName: metrics-deployer-
    spec:
      containers:
      - image: ${IMAGE_PREFIX}metrics-deployer:${IMAGE_VERSION}
        name: deployer
        volumeMounts:
        - name: secret
          mountPath: /secret
          readOnly: true
        - name: empty
          mountPath: /etc/deploy
        env:
          - name: PROJECT
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: IMAGE_PREFIX
            value: ${IMAGE_PREFIX}
          - name: IMAGE_VERSION
            value: ${IMAGE_VERSION}
          - name: PUBLIC_MASTER_URL
            value: ${PUBLIC_MASTER_URL}
          - name: MASTER_URL
            value: ${MASTER_URL}
          - name: REDEPLOY
            value: ${REDEPLOY}
          - name: USE_PERSISTENT_STORAGE
            value: ${USE_PERSISTENT_STORAGE}
          - name: HAWKULAR_METRICS_HOSTNAME
            value: ${HAWKULAR_METRICS_HOSTNAME}
          - name: CASSANDRA_NODES
            value: ${CASSANDRA_NODES}
          - name: CASSANDRA_PV_SIZE
            value: ${CASSANDRA_PV_SIZE}
          - name: METRIC_DURATION
            value: ${METRIC_DURATION}
      dnsPolicy: ClusterFirst
      restartPolicy: Never
      serviceAccount: metrics-deployer
      volumes:
      - name: empty
        emptyDir: {}
      - name: secret
        secret:
          secretName: metrics-deployer
  parameters:
  -
    description: 'Specify prefix for metrics components; e.g. for "openshift/origin-metrics-deployer:v3.1", set prefix "openshift/origin-"'
    name: IMAGE_PREFIX
    value: "openshift/origin-"
  -
    description: 'Specify version for metrics components; e.g. for "openshift/origin-metrics-deployer:v3.1", set version "v1.1"'
    name: IMAGE_VERSION
    value: "latest"
  -
    description: "Internal URL for the master, for authentication retrieval"
    name: MASTER_URL
    value: "https://kubernetes.default.svc:443"
  -
    description: "External hostname where clients will reach Hawkular Metrics"
    name: HAWKULAR_METRICS_HOSTNAME
    required: true
  -
    description: "If set to true the deployer will try and delete all the existing components before trying to redeploy."
    name: REDEPLOY
    value: "false"
  -
    description: "Set to true for persistent storage, set to false to use non persistent storage"
    name: USE_PERSISTENT_STORAGE
    value: "true"
  -
    description: "The number of Cassandra Nodes to deploy for the initial cluster"
    name: CASSANDRA_NODES
    value: "1"
  -
    description: "The persistent volume size for each of the Cassandra nodes"
    name: CASSANDRA_PV_SIZE
    value: "10Gi"
  -
    description: "How many days metrics should be stored for."
    name: METRIC_DURATION
    value: "7"
  ----
  ====
  
  [[deployer-template-parameters]]
  ==== Deployer Template Parameters
  
negative.code: volume] and be able to survive a pod being restarted or recreated. This is ideal
  if you require your metric data to be guarded from data loss.
  
  For cluster metrics to work with persistent storage, ensure that the persistent volume has the *ReadWriteOnce* access mode. If not, the persistent volume claim will not be able to find the persistent volume, and Cassandra will fail to start.
  
  To use persistent storage with the metric components, ensure that a
  link:../architecture/additional_concepts/storage.html#persistent-volumes[persistent
  volume] of sufficient size is available. The creation of
  