Background

CAPA supports a number of fields/features that don't make sense in OpenShift. To prevent issues with general usage and conversion, we should prevent users from leveraging these fields at all.

A VAP should be introduced to cover AWSMachineTemplate and AWSMachines that prevents the use of the following spec fields

• spec.ami.eksOptimizedLookupType
• spec.imageLookupFormat
• spec.imageLookupOrg
• spec.imageLookupBaseOS
• spec.networkInterfaces
• spec.uncompressedUserData
• spec.cloudInit
• spec.privateDNSName
• spec.ignition.proxy
• spec.ignition.tls
• spec.securityGroupOverrides

Steps

• Create a VAP and binding in the cluster-api-provider-aws repo that will be added to the transport configmap
• Prevent the usage of each of the above fields with a unique rule
• Scope the VAP to only the openshift-cluster-api namespace

Stakeholders

• Cluster Infra

Definition of Done

• Unsupported fields cannot be used in the openshift-cluster-api namespace

• Docs

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• Testing

• <Explain testing that will be added>