cert-manager/cert-manager v1.6.2

on GitHub

In 1.6.2, we have reverted a change present in 1.6.0 and 1.6.1 that caused a regression in the ACME Issuer. In 1.6.0 and 1.6.1, the Ingress created by cert-manager while solving an HTTP-01 challenge contained the kubernetes.io/ingress.class annotation:

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: istio # The `class` present on the Issuer.

After 1.5, the Ingress does not contain the annotation anymore. Instead, cert-manager uses the ingressClassName field:

apiVersion: networking.k8s.io/v1
kind: Ingress
spec:
  ingressClassName: istio # 🔥 Breaking change!

This broke many users that either don't use an Ingress controller that supports the field (such as ingress-gce and Azure AGIC), as well as people who did not need to create an IngressClass previously (such as with Istio and Traefik).

The regression is present in cert-manager 1.5.4, 1.6.0, and 1.6.1. It is only present on Kubernetes 1.19+ and only appears when using an Issuer or ClusterIssuer with an ACME HTTP-01 solver configured.

In 1.6.2, we have restored the original behavior which is to use the annotation. This patch is also available in 1.5.5 and in 1.7.0.

Most people won't have any trouble upgrading from 1.6.0 or 1.6.1 to 1.6.2. If you are using Gloo, Contour, Skipper, or kube-ingress-aws-controller, you shouldn't have any issues. If you use the default "class" (e.g., istio for Istio) for Traefik, Istio, Ambassador, or ingress-nginx, then these should also continue to work without issue.

If you are using Traefik, Istio, Ambassador, or ingress-nginx and you are using a non-default value for the class (e.g., istio-internal), or if you experience any issues with your HTTP-01 challenges please read the notes on Ingress v1 compatibility.

Changelog since v1.6.1

Bug or Regression

• The HTTP-01 ACME solver now uses the kubernetes.io/ingress.class annotation instead of the spec.ingressClassName in created Ingress resources. (#4785, @jetstack-bot)

Other (Cleanup or Flake)

• cert-manager now does one call to the ACME API instead of two when an Order fails. This fix is part of the effort towards mitigating the high load that cert-manager deployments have on the Let's Encrypt API (#4619, @irbekrm)
• Bump base images to latest versions (#4707, @SgtCoDFish)

Dependencies

Added

Nothing has changed.

Changed

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Removed

Nothing has changed.