[UPDATE] cert-manager apiVersion and acme files

[gentios]

Hi everyone, I tried to deploy the examples/qa in a real cluster and I struggled with some changes of Kubernetes v1.16.2.

I encountered the following issues:

The following command helm install stable/cert-manager -n cert-manager --namespace cert-manager does no longer work since [email protected] requires some additional repos to be added in helm.

Also theirapiVersion has changed from: certmanager.k8s.io/v1alpha1 to cert-manager.io/v1alpha2

Their acme resolvers now require additional solvers fields etc..

I encountered these issues and I managed to fix them, I would be happy to create a PR regarding this if you agree.

[alexvicegrab]

@gentios, yes, you are correct. It is necessary to update the installation and configuration of the Certificate Manager.

PRs on this are welcome. Unfortunately, I do not have time to help contribute to this.