Configuring OpenShift masters for overcommit using openshift-ansible

Solution Verified - Updated -

Issue

  • How to configure masters for overcommitment from ansible inventory similar to the following parameters in master-config.yaml:

    kubernetesMasterConfig:
  admissionConfig:
    pluginConfig:
      ClusterResourceOverride:   
        configuration:
          apiVersion: v1
          kind: ClusterResourceOverrideConfig
          memoryRequestToLimitPercent: 25  
          cpuRequestToLimitPercent: 25     
          limitCPUToMemoryPercent: 200
  • How to handle issues around scheduling and memory handling of a node.
  • How do I prevent OpenShift nodes from hanging?
  • What are the recommendations to prevent node overcommitment?

Environment

  • OpenShift Container Platform 3.5

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