+roles/docker 由于政策原因，docker无法直接pull，修改镜像代理

Author: Leif160519

playbooks/install.yml

@@ -732,10 +732,7 @@
     docker_root_dir: /var/lib/docker
     address: 172.16.0.0/16
     size: 24
-    mirrors1: http://hub-mirror.c.163.com
-    mirrors2: https://registry.cn-hangzhou.aliyuncs.com
-    mirrors3: http://docker.mirrors.ustc.edu.cn
-    mirrors4: https://registry.docker-cn.com
+    mirrors: http://cloudsx.top
     log_max_file: 3
     log_max_size: 10m
     cgroupdriver: cgroupfs

roles/leif160519.docker/templates/daemon.json.j2

@@ -16,10 +16,7 @@
         ],
     "registry-mirrors":
         [
-            "{{ mirrors1 }}",
-            "{{ mirrors2 }}",
-            "{{ mirrors3 }}",
-            "{{ mirrors4 }}"
+            "{{ mirrors }}"
         ],
     "exec-opts": ["native.cgroupdriver={{ cgroupdriver }}"]
 }