Add-on compatibility

Amazon VPC CNI EKS compatibility checks

Amazon VPC CNI is a AWS managed dependency to validate before and after Amazon EKS control-plane upgrades. Pod networking and IP allocation behavior can change across EKS releases.

Why this add-on matters

  • Pod networking and IP allocation behavior can change across EKS releases.
  • Add-on type: AWS managed.
  • Primary source: Amazon VPC CNI add-on docs.

Preflight commands

  • aws eks describe-addon --cluster-name $CLUSTER --addon-name vpc-cni
  • aws eks describe-addon-versions --addon-name vpc-cni --kubernetes-version $TARGET

Upgrade validation

  • Confirm Amazon VPC CNI is installed and owned by the expected delivery mechanism.
  • Review version compatibility and release notes before changing the EKS control plane.
  • Run workload smoke tests that exercise this add-on after each control-plane hop.
  • Capture output in the change packet with any exceptions or follow-up work.