okd/roles/openshift_metrics/tasks/pre_install.yaml

---
- name: Check that hawkular_metrics_hostname is set
  fail: msg='the openshift_metrics_hawkular_hostname variable is required'
  when: openshift_metrics_hawkular_hostname is not defined

- name: Check the value of openshift_metrics_cassandra_storage_type
  fail:
    msg: >
      openshift_metrics_cassandra_storage_type ({{ openshift_metrics_cassandra_storage_type }})
      is invalid, must be one of: emptydir, pv, dynamic
  when:
  - openshift_metrics_cassandra_storage_type not in openshift_metrics_cassandra_storage_types
  - not (openshift_metrics_heapster_standalone | bool)

- name: list existing secrets
  command: >
    {{ openshift_client_binary }} -n {{ openshift_metrics_project }}
    --config={{ mktemp.stdout }}/admin.kubeconfig
    get secrets -o name
  register: metrics_secrets
  changed_when: false