a06de688fc
- In the provided configuration file for `kubeadm init` the value for `apiserver-count` needs to be put in quotes. - In addition to /etc/kubernetes/pki/ca.* also /etc/kubernetes/pki/sa.* need to be copied to the additional masters. See [this comment](https://github.com/kubernetes/kubeadm/issues/546#issuecomment-350241024) by @petergardfjall for details.