Fixed etcd-servers-overrides in kubeadm config (#4668)

* kube-apiserver will fail if used comma as separator

roles/kubernetes/master/templates/kubeadm-config.v1alpha2.yaml.j2

@@ -54,7 +54,7 @@ apiServerExtraArgs:
   endpoint-reconciler-type: lease
 {% endif %}
 {% if etcd_events_cluster_enabled %}
-  etcd-servers-overrides: "/events#{{ etcd_events_access_addresses }}"
+  etcd-servers-overrides: "/events#{{ etcd_events_access_addresses_semicolon }}"
 {% endif %}
   service-node-port-range: {{ kube_apiserver_node_port_range }}
   kubelet-preferred-address-types: "{{ kubelet_preferred_address_types }}"

roles/kubernetes/master/templates/kubeadm-config.v1alpha3.yaml.j2

@@ -73,7 +73,7 @@ apiServerExtraArgs:
   endpoint-reconciler-type: lease
 {% endif %}
 {% if etcd_events_cluster_enabled %}
-  etcd-servers-overrides: "/events#{{ etcd_events_access_addresses }}"
+  etcd-servers-overrides: "/events#{{ etcd_events_access_addresses_semicolon }}"
 {% endif %}
   service-node-port-range: {{ kube_apiserver_node_port_range }}
   kubelet-preferred-address-types: "{{ kubelet_preferred_address_types }}"

roles/kubernetes/master/templates/kubeadm-config.v1beta1.yaml.j2

@@ -70,7 +70,7 @@ apiServer:
     endpoint-reconciler-type: lease
 {% endif %}
 {% if etcd_events_cluster_enabled %}
-    etcd-servers-overrides: "/events#{{ etcd_events_access_addresses }}"
+    etcd-servers-overrides: "/events#{{ etcd_events_access_addresses_semicolon }}"
 {% endif %}
     service-node-port-range: {{ kube_apiserver_node_port_range }}
     kubelet-preferred-address-types: "{{ kubelet_preferred_address_types }}"