E.2. Enabling Gluster Block Storage as Backend for Logging

Follow the tasks mentioned below to enable Gluster Block Storage as backend for logging:
  1. To enable logging in Openshift Container platform, see https://access.redhat.com/documentation/en-us/openshift_container_platform/3.6/html-single/installation_and_configuration/#install-config-aggregate-logging
  2. The openshift_logging_es_pvc_dynamic ansible variable has to be set to true. 
    [OSEv3:vars] openshift_logging_es_pvc_dynamic=true
    For example, a sample set of variables for openshift_logging_ are listed below. 
    openshift_logging_es_pvc_dynamic=true
openshift_logging_es_pvc_size=5G
openshift_logging_es_cluster_size=3
openshift_logging_es_memory_limit=4G
openshift_logging_es_number_of_replicas=2
openshift_logging_es_nodeselector={'region' : 'infra'}
openshift_logging_curator_nodeselector={'region' : 'infra'}
openshift_logging_kibana_nodeselector={'region' : 'infra'}
  3. Run the Ansible playbook. For more information, see .https://access.redhat.com/documentation/en-us/openshift_container_platform/3.6/html-single/installation_and_configuration/#install-config-aggregate-logging
  4. To verify, execute the following command: 
    # oc get pods -n openshift-logging

Note

For more information regarding logging storage considerations, see https://access.redhat.com/documentation/en-us/openshift_container_platform/3.6/html-single/installation_and_configuration/#install-config-aggregate-logging-sizing-guidelines-storage.