add the environment attribute to etcd deploy

In ansible/roles/etcd/tasks/config.yml, the kolla_docker
compare_container action doesn't check environment.

Once a container is created, it won't get recreated if only the
environment change. This commit add the environment attribute to the
kolla_docker action in etcd role

Change-Id: I8fb71cc945867e06acc67f6d1256bf62f4276206
Closes-Bug: #1765517

ansible/roles/etcd/tasks/config.yml

@@ -33,6 +33,7 @@
     name: "{{ item.value.container_name }}"
     image: "{{ item.value.image }}"
     volumes: "{{ item.value.volumes }}"
+    environment: "{{ item.value.environment }}"
   register: check_etcd_containers
   when:
     - action != "config"