Add support for admission controllers in 1.10 and above

roles/kubernetes/master/templates/kubeadm-config.yaml.j2

@@ -34,7 +34,11 @@ apiServerExtraArgs:
   bind-address: {{ kube_apiserver_bind_address }}
   insecure-bind-address: {{ kube_apiserver_insecure_bind_address }}
   insecure-port: "{{ kube_apiserver_insecure_port }}"
+{% if kube_version | version_compare('v1.10', '<') %}
   admission-control: {{ kube_apiserver_admission_control | join(',') }}
+{% else %}
+  enable-admission-plugins: {{ kube_apiserver_admission_control | join(',') }} 
+{% endif %}
   apiserver-count: "{{ kube_apiserver_count }}"
 {% if kube_version | version_compare('v1.9', '>=') %}
   endpoint-reconciler-type: lease

roles/kubernetes/master/templates/manifests/kube-apiserver.manifest.j2

@@ -45,7 +45,11 @@ spec:
 {% if kube_version | version_compare('v1.9', '>=') %}
     - --endpoint-reconciler-type=lease
 {% endif %}
+{% if kube_version | version_compare('v1.10', '<') %}
     - --admission-control={{ kube_apiserver_admission_control | join(',') }}
+{% else %}
+    - --enable-admission-plugins={{ kube_apiserver_admission_control | join(',') }} 
+{% endif %}
     - --service-cluster-ip-range={{ kube_service_addresses }}
     - --service-node-port-range={{ kube_apiserver_node_port_range }}
     - --client-ca-file={{ kube_cert_dir }}/ca.pem