Merge remote-tracking branch 'upstream/master'

.gitlab-ci.yml

README.md

Vagrantfile

docs/openstack.md

docs/vagrant.md

roles/etcd/tasks/gen_certs_vault.yml

roles/kubernetes-apps/helm/tasks/main.yml

...tes/master/templates/manifests/kube-apiserver.manifest.j2

roles/kubernetes/node/defaults/main.yml

roles/kubernetes/node/templates/kubelet.rkt.service.j2

roles/kubernetes/secrets/tasks/sync_kube_node_certs.yml

roles/network_plugin/flannel/handlers/main.yml

roles/upgrade/post-upgrade/tasks/main.yml

roles/upgrade/pre-upgrade/tasks/main.yml

roles/vault/tasks/bootstrap/ca_trust.yml

roles/vault/tasks/shared/sync.yml

roles/vault/tasks/shared/sync_file.yml

upgrade-cluster.yml