Fix docker cache distribute port config (#5357)

contrib/kubespray/docker-cache-config-distribute.yml

@@ -6,7 +6,7 @@
     - role: '../roles/docker-cache/install'
       vars:
         enable_docker_cache: true
-        docker_cache_host: "{{ hostvars[groups['kube-master'][0]]['ip'] }}"
+        docker_cache_host: "{{ hostvars[groups['kube-master'][0]]['ip'] }}:30500"
   tasks:
     - name: Restart service docker config from /etc/docker/daemon.json after update
       ansible.builtin.systemd:

contrib/kubespray/roles/docker-cache/install/defaults/main.yml

@@ -1,2 +1,2 @@
 enable_docker_cache: false
-docker_cache_host: 'localhost'
+docker_cache_host: 'localhost:30500'

contrib/kubespray/roles/docker-cache/install/files/add_docker_cache_config.py

@@ -5,7 +5,7 @@ import json
 
 def parse_args():
     parser = argparse.ArgumentParser()
-    parser.add_argument("host", default="localhost", help="host addr of docker cache registry")
+    parser.add_argument("host", default="localhost:30500", help="host addr of docker cache registry")
     return parser.parse_args()
 
 
@@ -26,7 +26,7 @@ def main():
     with open(str(backup_path), 'w') as f:
         json.dump(current_config, f)
 
-    docker_cache_mirror = "http://{}:30500".format(args.host)
+    docker_cache_mirror = "http://{}".format(args.host)
     if "registry-mirrors" in current_config:
         if docker_cache_mirror not in current_config["registry-mirrors"]:
             current_config["registry-mirrors"].append(docker_cache_mirror)