Why the inbound rule is added for ingress for all protocol, port and traffic in master and worker security group?

Solution Verified - Updated -

Issue

  • By default, an inbound rule is added in the security group of master and worker node for ingress.
  • All traffic from the ingress security group is allowed to master and worker security group.
  • Need some information to provide to the security team about this.

Environment

  • Red Hat OpenShift Container Platform (OCP)
    • 4.x

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