Logging Deployment fails with "Unexpected templating type error occurred"

Issue

• When deploying the logging stack on OpenShift using the Ansible playbook, the installation fails with the following error message:

  TASK [openshift_logging_elasticsearch : Set ES dc templates]
  *********************************************************************************************************************************************************************************
  fatal: [10.74.176.53]: FAILED! => {"msg": "Unexpected templating type error occurred on ({{ openshift_logging_elasticsearch_cpu_request | min_cpu(openshift_logging_elasticsearch_cpu_limit | default(none)) }}): expected string or buffer"}