New dev (#1193)

优化etcd 恢复逻辑

roles/cluster-restore/tasks/main.yml

@@ -4,27 +4,20 @@
 - name: 清除etcd 数据目录
   file: name={{ ETCD_DATA_DIR }}/member state=absent
 
-- name: 生成备份目录
-  file: name=/etcd_backup state=directory
-
-- name: 准备指定的备份etcd 数据
-  copy: 
-    src: "{{ cluster_dir }}/backup/{{ db_to_restore }}"
-    dest: "/etcd_backup/snapshot.db"
-
-- name: 清理上次备份恢复数据
-  file: name=/etcd_backup/etcd-{{ inventory_hostname }}.etcd state=absent
+- name: 清除 etcd 备份目录
+  file: name={{ cluster_dir }}/backup/etcd-restore state=absent
+  delegate_to: 127.0.0.1 
+  run_once: true
 
 - name: etcd 数据恢复
-  shell: "cd /etcd_backup && \
-	ETCDCTL_API=3 {{ bin_dir }}/etcdctl snapshot restore snapshot.db \
-	--name etcd-{{ inventory_hostname }} \
-	--initial-cluster {{ ETCD_NODES }} \
-	--initial-cluster-token etcd-cluster-0 \
-	--initial-advertise-peer-urls https://{{ inventory_hostname }}:2380"
+  shell: "cd {{ cluster_dir }}/backup && \
+	ETCDCTL_API=3 {{ base_dir }}/bin/etcdctl snapshot restore snapshot.db \
+	 --data-dir={{ cluster_dir }}/backup/etcd-restore"
+  delegate_to: 127.0.0.1
+  run_once: true
 
-- name: 恢复数据至etcd 数据目录
-  shell: "cp -rf /etcd_backup/etcd-{{ inventory_hostname }}.etcd/member {{ ETCD_DATA_DIR }}/"
+- name: 分发恢复文件到 etcd 各个节点
+  copy: src={{ cluster_dir }}/backup/etcd-restore/member dest={{ ETCD_DATA_DIR }}
 
 - name: 重启etcd 服务
   service: name=etcd state=restarted