Docker 修改容器默认存储位置

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本文链接： https://blog.csdn.net/boss2967/article/details/102496160

1. 操作步骤

1. 查看Docker配置信息
2. 修改配置文件
3. 重启查看是否修改成功

1.1 查看Docker配置信息

查看Docker Root Dir 参数，容器默认存储在 /var/lib/docker 位置

[root@xxxxx]# docker info
Client:
 Debug Mode: false

Server:
 Containers: 68
  Running: 40
  Paused: 0
  Stopped: 28
 Images: 101
 Server Version: 19.03.2-beta1
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: true
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 894b81a4b802e4eb2a91d1ce216b8817763c29fb
 runc version: 425e105d5a03fabd737a126ad93d62a9eeede87f
 init version: fec3683
 Security Options:
  seccomp
   Profile: default
 Kernel Version: 3.10.0-693.2.2.el7.x86_64
 Operating System: CentOS Linux 7 (Core)
 OSType: linux
 Architecture: x86_64
 CPUs: 12
 Total Memory: 47.01GiB
 Name: rcitech-fabric-sandbox
 ID: INUQ:ZFOX:RMK3:FQRP:O5PV:ZFZV:P4IL:FCBK:L7RM:SDEK:MPJF:QWFY
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

1.2 修改配置文件

打开 /etc/docker/daemon.json 输入以下内容（如果没有找到就创建一个）

{
    "graph":"/data/docker"
}

1.3 重启查看是否修改成功

[root@localhost ~]# systemctl restart docker
[root@localhost ~]# docker info

查看 Docker Root Dir 参数 是否有变化。