但是caddy每次重启都失败
[0m caddy.service - Caddy HTTP/2 web server
Loaded: loaded (/usr/lib/systemd/system/caddy.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Tue 2020-01-21 18:10:44 CST; 10min ago
Docs: https://caddyserver.com/docs
Process: 4553 ExecStart=/usr/bin/caddy -conf /etc/caddy/caddy.conf -root /tmp -agree (code=exited, status=1/FAILURE)
Process: 4549 ExecStartPre=/usr/bin/caddy -conf /etc/caddy/caddy.conf -validate (code=exited, status=0/SUCCESS)
Main PID: 4553 (code=exited, status=1/FAILURE)
Jan 21 18:10:44 izwz92ujq5zpxw3v4vxv5vz systemd[1]: Starting Caddy HTTP/2 web server...
Jan 21 18:10:44 izwz92ujq5zpxw3v4vxv5vz systemd[1]: Started Caddy HTTP/2 web server.
Jan 21 18:10:44 izwz92ujq5zpxw3v4vxv5vz caddy[4553]: Activating privacy features... done.
Jan 21 18:10:44 izwz92ujq5zpxw3v4vxv5vz caddy[4553]: 2020/01/21 18:10:44 Listen: listen tcp :80: bind: address already in use
Jan 21 18:10:44 izwz92ujq5zpxw3v4vxv5vz systemd[1]: caddy.service: main process exited, code=exited, status=1/FAILURE
Jan 21 18:10:44 izwz92ujq5zpxw3v4vxv5vz systemd[1]: Unit caddy.service entered failed state.
Jan 21 18:10:44 izwz92ujq5zpxw3v4vxv5vz systemd[1]: caddy.service failed.