Merge remote-tracking branch 'upstream/master' into fix/ubuntu-xenial-resolv-conf

README.md

contrib/terraform/aws/README.md

docs/contiv.md

inventory/sample/group_vars/all/all.yml

roles/download/defaults/main.yml

roles/etcd/tasks/install_host.yml

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

...ess_controller/cert_manager/templates/00-namespace.yml.j2

...er/cert_manager/templates/clusterrole-cert-manager.yml.j2

..._manager/templates/clusterrolebinding-cert-manager.yml.j2

..._controller/cert_manager/templates/crd-certificate.yml.j2

...ontroller/cert_manager/templates/crd-clusterissuer.yml.j2

...gress_controller/cert_manager/templates/crd-issuer.yml.j2

...troller/cert_manager/templates/deploy-cert-manager.yml.j2

..._controller/cert_manager/templates/sa-cert-manager.yml.j2

...kubernetes-apps/network_plugin/contiv/tasks/configure.yml

roles/kubernetes-apps/network_plugin/contiv/tasks/main.yml

roles/kubernetes/master/tasks/main.yml

roles/kubernetes/node/tasks/install

roles/kubernetes/node/tasks/install.yml