# The serving certificate for the mutating admission webhook. cert-manager writes the # resulting key pair into the secret named by secretName, which the controller-manager # Deployment mounts at /tmp/k8s-webhook-server/serving-certs (see manager_webhook_patch.yaml). # The MutatingWebhookConfiguration's cert-manager.io/inject-ca-from annotation points at # this Certificate so the caBundle is injected and rotated automatically (design ยง10). # # The dnsNames carry a placeholder Service name/namespace; the config/default overlay # rewrites the SERVICE_NAME / SERVICE_NAMESPACE segments via kustomize replacements so the # rendered SAN matches the actual (namePrefix-ed, namespaced) Service. apiVersion: cert-manager.io/v1 kind: Certificate metadata: name: serving-cert namespace: system labels: app.kubernetes.io/name: operator app.kubernetes.io/managed-by: kustomize spec: dnsNames: # SERVICE_NAME and SERVICE_NAMESPACE will be substituted by kustomize replacements. - SERVICE_NAME.SERVICE_NAMESPACE.svc - SERVICE_NAME.SERVICE_NAMESPACE.svc.cluster.local issuerRef: kind: Issuer name: selfsigned-issuer secretName: webhook-server-cert