Changing instance type of Control Plane nodes on OpenShift 4 AWS IPI installation

Solution Verified - Updated -

Issue

  • Need a way to change the instance type of a master node in AWS IPI.

  • Change the instance type of Control Plane nodes from r5.xlarge to r5.large when an OpenShift 4 cluster is hosted on AWS.

  • Can we customize the instance type on the running cluster for the AWS installation?

Environment

  • Red Hat OpenShift Container Platform (RHOCP)

    • 4.x
  • IPI installation

  • AWS

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