Adding Metrics

UP: https://github.com/CCI-MOC/moc-public/wiki/OpenShift

Reference: https://docs.openshift.com/container-platform/3.5/install_config/cluster_metrics.html#metrics-namespace

1. Run the ansible script for either with PV or without PV:

   With persistent volume:

    ansible-playbook <OPENSHIFT_ANSIBLE_DIR>/common/openshift-cluster/openshift_metrics.yml \
       -e openshift_metrics_install_metrics=True \
       -e openshift_metrics_hawkular_hostname=hawkular-metrics.example.com \
       -e openshift_metrics_cassandra_storage_type=pv
   

   ---

   Without persistent volume:

    ansible-playbook <OPENSHIFT_ANSIBLE_DIR>/common/openshift-cluster/openshift_metrics.yml \
       -e openshift_metrics_install_metrics=True \
       -e openshift_metrics_hawkular_hostname=hawkular-metrics.example.com
   

2. Not sure if this is needed, to add the hawkular OpenShift Agent - this gets deployed to the default project a) Get the 2 configuration files

    wget https://github.com/openshift/origin-metrics/blob/enterprise/hawkular-openshift-agent/hawkular-openshift-agent-configmap.yaml
    wget https://github.com/openshift/origin-metrics/blob/enterprise/hawkular-openshift-agent/hawkular-openshift-agent.yaml
   

   b) To deploy the agent:

    oc create -f hawkular-openshift-agent-configmap.yaml -n default
    oc process -f hawkular-openshift-agent.yaml | oc create -n default -f -
    oc adm policy add-cluster-role-to-user hawkular-openshift-agent system:serviceaccount:default:hawkular-openshift-agent