Merge pull request #34610 from wojtek-t/set_target_version

Automatic merge from submit-queue

Set target version env in etcd manifest

Ref https://github.com/kubernetes/kubernetes/issues/20504

@lavalamp

cluster/saltbase/salt/etcd/etcd.manifest

@@ -43,6 +43,9 @@
       { "name": "TARGET_STORAGE",
         "value": "{{ storage_backend }}"
       },
+      { "name": "TARGET_VERSION",
+        "value": "{{ pillar.get('etcd_docker_tag', '2.2.1') }}"
+      },
       { "name": "DATA_DIRECTORY",
         "value": "/var/etcd/data{{ suffix }}"
       }