properly generate extravolumes in kubeadmconfig for centos (kubernete…

…s-sigs#6707)

Cleanup v1.16 hashes (kubernetes-sigs#6635)

Update base image to v2.12.9 (kubernetes-sigs#6492)

fix test if openstack_cacert is a base64 string (kubernetes-sigs#6371)

[2.12] Update hashes and set default version to 1.16.13 (kubernetes-s…

…igs#6477)

* Move healthz check to secure ports (kubernetes-sigs#6446) (kubernetes-sigs#6457)

* Update hashes and set default version to 1.16.13

Update hashes and set default to 1.17.7 (kubernetes-sigs#6286)

Update hashes and set default to 1.16.11 (kubernetes-sigs#6287)

Add new Kubernetes version hashes and set default to 1.17.6 (kubernet…

…es-sigs#6183)

* Add new Kubernetes version hashes and set default to 1.17.6

* Do not rebase against master when commiting a release branch

Make Vagrant CI use unsafe I/O (kubernetes-sigs#6058)

Update hashes and set default k8s version to 1.16.9 (kubernetes-sigs#…

…6032)