Merge pull request #359 from kubespray/fix_351

deployment idempotent

roles/etcd/tasks/install.yml

@@ -3,6 +3,7 @@
   command: rsync -piu "{{ etcd_bin_dir }}/etcd" "{{ bin_dir }}/etcd"
   when: etcd_deployment_type == "host"
   register: etcd_copy
+  changed_when: false
 
 - name: Install | Copy etcdctl binary from downloaddir
   command: rsync -piu "{{ etcd_bin_dir }}/etcdctl" "{{ bin_dir }}/etcdctl"