Centos 7: 改变docker的image存放目录

Posted 2020-12-31 eikixu

steps:

1. mkdir /data/docker   创建新的存放目录

2. systemctl stop docker 关闭docker进程

3. vi /usr/lib/systemd/system/docker.service

 添加 -g /home/docker

[[email protected] data]# cat /usr/lib/systemd/system/docker.service

[Unit]

Description=Docker Application Container Engine

Documentation=http://docs.docker.com

After=network.target rhel-push-plugin.socket registries.service

Wants=docker-storage-setup.service

Requires=docker-cleanup.timer

[Service]

Type=notify

NotifyAccess=all

EnvironmentFile=-/run/containers/registries.conf

EnvironmentFile=-/etc/sysconfig/docker

EnvironmentFile=-/etc/sysconfig/docker-storage

EnvironmentFile=-/etc/sysconfig/docker-network

Environment=GOTRACEBACK=crash

Environment=DOCKER_HTTP_HOST_COMPAT=1

Environment=PATH=/usr/libexec/docker:/usr/bin:/usr/sbin

ExecStart=/usr/bin/dockerd-current -g /data/docker

          --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current

          --default-runtime=docker-runc

          --exec-opt native.cgroupdriver=systemd

          --userland-proxy-path=/usr/libexec/docker/docker-proxy-current

          --init-path=/usr/libexec/docker/docker-init-current

          --seccomp-profile=/etc/docker/seccomp.json

          $OPTIONS

          $DOCKER_STORAGE_OPTIONS

          $DOCKER_NETWORK_OPTIONS

          $ADD_REGISTRY

          $BLOCK_REGISTRY

          $INSECURE_REGISTRY

  $REGISTRIES

ExecReload=/bin/kill -s HUP $MAINPID

LimitNOFILE=1048576

LimitNPROC=1048576

LimitCORE=infinity

TimeoutStartSec=0

Restart=on-abnormal

KillMode=process

[Install]

WantedBy=multi-user.target

4. cp -R /var/lib/docker/* /data/docker/  复制之前的镜像数据到新的目录

5. systemctl daemon-reload 重新加载配置信息

6. systemctl start docker 重新启动docker进程