Upgrade to Kubernetes 1.174 (#5628)

* Upgrade to Kubernetes 1.17.4 - change defaults

* Update ci jobs to previous k8s release (will fix them afterward)

tests/files/packet_centos7-flannel-addons.yml

@@ -28,3 +28,6 @@ enable_nodelocaldns: false
 
 kube_oidc_url: https://accounts.google.com/.well-known/openid-configuration
 kube_oidc_client_id: kubespray-example
+
+# Temp set k8s ver to 1.16.8
+kube_version: v1.16.8

tests/files/packet_centos7-kube-ovn.yml

@@ -7,3 +7,6 @@ mode: default
 kube_network_plugin: kube-ovn
 deploy_netchecker: true
 dns_min_replicas: 1
+
+# Temp set k8s ver to 1.16.8
+kube_version: v1.16.7

tests/files/packet_centos7-weave-kubeadm-sep.yml

@@ -8,3 +8,6 @@ kube_network_plugin: weave
 deploy_netchecker: true
 kubernetes_audit: true
 dns_min_replicas: 1
+
+# Temp set k8s ver to 1.16.7 (due to bug with 1.16.8)
+kube_version: v1.16.7

tests/files/tf-ovh_coreos-calico.yml

@@ -3,3 +3,6 @@ dns_min_replicas: 1
 deploy_netchecker: true
 
 # resolvconf_mode: host_resolvconf  # this is required as long as the coreos stable channel uses docker < 1.12
+
+# Temp set k8s ver to 1.16.8
+kube_version: v1.16.8