Upstream Changes:

   - coredns v1.2.5 (https://github.com/coredns/coredns/releases/tag/v1.2.5)

NOTE:

   - Switch image repo to https://hub.docker.com/r/coredns/coredns/ (https://github.com/kubernetes-incubator/kubespray/pull/3595#issuecomment-433962973)

Standalone etcd nodes do not generate node-$hostname certs and do
not need this serial calculated.

Correct the wrong words

fix typo doesnt -> doesn't

fix typos in line 114 and 116: doesnt -> doesn't

Only exclude buggy Ansible v2.7.0 (https://github.com/ansible/ansible/issues/46600#issuecomment-433863628)

Fixup #3589

appropiate->appropriate

Correct the wrong word

typo fix about officially

Signed-off-by: Yongxin Li <yxli@alauda.io>

Fix some typos

Signed-off-by: Rui Cao <ruicao@alauda.io>

Revert "CoreDNS v1.2.5 (#3595)"

* Add an 'access_ip' for openstack resources to the terraform inventory builder script

* Update Openstack README

* Only use ipv4

* If there's a floating IP assigned to an openstack instance, use that for access_ip

This reverts commit 8ba6b601.

* do it like in kubernetes/secrets

* fix indentation

* processed comments

* missed one, sorry

* trailing space fix

Fix typo

need set hostname by kubeadm

Update vsphere.md

Fix some typos

fix typo

[contrib/terraform/openstack] Add support for router less deployments

Add bin_dir to kubectl version check