Add-on compatibility

cert-manager EKS compatibility checks

cert-manager is a Platform addon dependency to validate before and after Amazon EKS control-plane upgrades. CRDs and admission webhooks must be healthy before and after control-plane upgrades.

Why this add-on matters

CRDs and admission webhooks must be healthy before and after control-plane upgrades.
Add-on type: Platform addon.
Primary source: cert-manager supported releases.

Preflight commands

kubectl get crd | grep cert-manager.io
kubectl -n cert-manager get pods

Upgrade validation

Confirm cert-manager 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.