文章参考
docker__1">du -hs /var/lib/docker/ 命令查看磁盘使用情况。
du -hs /var/lib/docker/
docker_system_dfLinuxdfDocker_6">docker system df命令，类似于Linux上的df命令，用于查看Docker的磁盘使用情况:
root@nn0:~$ docker system df
TYPE TOTAL ACTIVE SIZE RECLAIMABLE
Images 7 2 122.2GB 79.07GB (64%)
Containers 2 2 61.96GB 0B (0%)
Local Volumes 0 0 0B 0B
Build Cache 0 0 0B 0B
docker__18">迁移 /var/lib/docker 目录
- 停止docker服务。
systemctl stop dockersystemctl stop docker.socket
mkdir -p /home/docker/lib
rsync -avz /var/lib/docker /home/docker/lib/
-
修改
vim /usr/lib/systemd/system/docker.service搜索ExecStart
在ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock添加--data-root=/home/docker/lib/docker -
修改
/etc/docker/daemon.conf
{"registry-mirrors": ["https://docker.m.daocloud.io","https://dockerhub.icu","https://docker.anyhub.us.kg","https://docker.1panel.live"],"log-driver":"json-file","log-opts":{"max-size" :"50m","max-file":"3"},"graph":"/home/docker/lib/docker" # docker 低版本使用 graph"root-data":"/home/docker/lib/docker" # docker 高版本使用 root-data
}
- 重新加载 docker
systemctl daemon-reloadsystemctl restart dockersystemctl enable docker
如果启动失败 输入 systemctl status docker.service 查看错误日志
- 为了确认一切顺利，运行
# docker info
命令检查Docker 的根目录.它将被更改为 /home/docker/lib/docker
...
Docker Root Dir: /home/docker/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
...
问题
docker.service - Docker Application Container Engine Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled) Active: failed (Result: start-limit) since 一 2019-07-15 23:29:49 CST; 4min 59s ago Docs: https://docs.docker.com Process: 31870 ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock (code=exited, status=1/FAILURE) Main PID: 31870 (code=exited, status=1/FAILURE)
将 /etc/docker/daemon.json 改后缀 为 .conf
