fix --etcd-servers-overrides invalid (#3470)

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

@@ -41,7 +41,7 @@ spec:
     - --advertise-address={{ ip | default(ansible_default_ipv4.address) }}
     - --etcd-servers={{ etcd_access_addresses }}
 {%   if etcd_events_cluster_enabled %}
-    - --etcd-servers-overrides=/events#{{ etcd_events_access_addresses }}
+    - --etcd-servers-overrides=/events#{{ etcd_events_access_addresses_semicolon }}
 {% endif %}
 {%   if kube_version | version_compare('v1.9', '<')  %}
     - --etcd-quorum-read=true

roles/kubespray-defaults/defaults/main.yaml

@@ -425,10 +425,14 @@ etcd_access_addresses: |-
   {% for item in groups['etcd'] -%}
     https://{{ hostvars[item]['access_ip'] | default(hostvars[item]['ip'] | default(hostvars[item]['ansible_default_ipv4']['address'])) }}:2379{% if not loop.last %},{% endif %}
   {%- endfor %}
-etcd_events_access_addresses: |-
+etcd_events_access_addresses_list: |-
+  [
   {% for item in groups['etcd'] -%}
-    https://{{ hostvars[item]['access_ip'] | default(hostvars[item]['ip'] | default(hostvars[item]['ansible_default_ipv4']['address'])) }}:2381{% if not loop.last %},{% endif %}
+    'https://{{ hostvars[item]['access_ip'] | default(hostvars[item]['ip'] | default(hostvars[item]['ansible_default_ipv4']['address'])) }}:2381'{% if not loop.last %},{% endif %}
   {%- endfor %}
+  ]
+etcd_events_access_addresses: "{{etcd_events_access_addresses_list | join(',')}}"
+etcd_events_access_addresses_semicolon: "{{etcd_events_access_addresses_list | join(';')}}"
 # user should set etcd_member_name in inventory/mycluster/hosts.ini
 etcd_member_name: |-
   {% for host in groups['etcd'] %}