contiv-etcd-init image as default instead hardcoded

roles/network_plugin/contiv/defaults/main.yml

@@ -15,6 +15,9 @@ contiv_etcd_endpoints: |-
     contiv_etcd{{ loop.index }}=http://{{ hostvars[host]['ip'] | default(hostvars[host].ansible_default_ipv4['address']) }}:{{ contiv_etcd_peer_port }}{% if not loop.last %},{% endif %}
   {%- endfor %}
 
+contiv_etcd_init_image_repo: ferest/etcd-initer
+contiv_etcd_init_image_tag: latest
+
 # Parameters for Contiv api-proxy
 contiv_enable_api_proxy: true
 contiv_api_proxy_port: 10000

roles/network_plugin/contiv/templates/contiv-etcd.yml.j2

@@ -26,7 +26,7 @@ spec:
           effect: NoSchedule
       initContainers:
         - name: contiv-etcd-init
-          image: ferest/etcd-initer:latest
+          image: {{ contiv_etcd_init_image_repo }}:{{ contiv_etcd_init_image_tag }}
           imagePullPolicy: Always
           env:
             - name: ETCD_INIT_ARGSFILE