ansible: add time to etcd log file

curve-ansible/roles/restart_service/tasks/include/restart_etcd.yml

@@ -22,5 +22,5 @@
     service_port: "{{ etcd_listen_client_port }}"
     process_name: etcd
     start_cmd: >
-      nohup {{ install_etcd_dir }}/etcd --config-file {{ etcd_config_path }} > etcd-console.log 2>&1 &
+      nohup {{ install_etcd_dir }}/etcd --config-file {{ etcd_config_path }} > etcd-console-$(date -d "today" +"%Y%m%d_%H%M%S").log 2>&1 &
   include_tasks: common_tasks/restart_service.yml

curve-ansible/roles/start_service/tasks/include/start_etcd.yml

@@ -21,5 +21,5 @@
     daemon_script: ./etcd-daemon.sh
     service_port: "{{ etcd_listen_client_port }}"
     start_cmd: >
-      nohup {{ install_etcd_dir }}/etcd --config-file {{ etcd_config_path }} > etcd-console.log 2>&1 &
+      nohup {{ install_etcd_dir }}/etcd --config-file {{ etcd_config_path }} > etcd-console-$(date -d "today" +"%Y%m%d_%H%M%S").log 2>&1 &
   include_tasks: common_tasks/start_service.yml