编辑/etc/systemd/system/ktsee-docker-cleaner.timer文件

# /etc/systemd/system/ktsee-docker-cleaner.timer

[Unit]

Description=clean docker images and containers at everyday 02:00

After=network-online.target

[Timer]

OnCalendar=*-*-* 02:00:00

# same name can ignore below

# Unit=ktsee-docker-cleaner.service

[Install]

WantedBy=multi-user.target

编辑/etc/systemd/system/ktsee-docker-cleaner.service文件

# /etc/systemd/system/ktsee-docker-cleaner.service

[Unit]

Description=clear docker images and containers

After=docker.service

Requires=docker.service

[Service]

ExecStart=/bin/sh -c "/usr/bin/docker container prune --force&&/usr/bin/docker image prune --force&&docker volume prune --force&&docker network prune --force"

[Install]

WantedBy=multi-user.target

重启并查看服务

systemctl daemon-reload

systemctl enable ktsee-docker-cleaner.timer

systemctl start ktsee-docker-cleaner.timer

systemctl list-timers