如果没有/etc/sysconfig/docker这个配置文件
1.vim /lib/systemd/system/docker.service
[Unit] Description=Docker Application Container Engine Documentation=https://docs.docker.com After=network.target docker.socket Requires=docker.socket [Service] Type=notify EnvironmentFile=/etc/sysconfig/docker ExecStart=/usr/bin/docker -d $OPTIONS -H fd:// LimitNOFILE=1048576 LimitNPROC=1048576 LimitCORE=infinity MountFlags=slave [Install] WantedBy=multi-user.target
2.vim /etc/sysconfig/docker
# /etc/sysconfig/docker # Modify these options if you want to change the way the docker daemon runs OPTIONS='-H tcp://0.0.0.0:4243 -H unix:///var/run/docker.sock' DOCKER_CERT_PATH=/etc/docker # If you want to add your own registry to be used for docker search and docker # pull use the ADD_REGISTRY option to list a set of registries, each prepended # with --add-registry flag. The first registry added will be the first registry # searched. # ADD_REGISTRY='--add-registry registry.access.redhat.com' # If you want to block registries from being used, uncomment the BLOCK_REGISTRY # option and give it a set of registries, each prepended with --block-registry # flag. For example adding docker.io will stop users from downloading images # from docker.io # BLOCK_REGISTRY='--block-registry' # If you have a registry secured with https but do not have proper certs # distributed, you can tell docker to not look for full authorization by # adding the registry to the INSECURE_REGISTRY line and uncommenting it. INSECURE_REGISTRY='--insecure-registry dl.dockerpool.com:5000' # On an SELinux system, if you remove the --selinux-enabled option, you # also need to turn on the docker_transition_unconfined boolean. # setsebool -P docker_transition_unconfined 1 # Location used for temporary files, such as those created by # docker load and build operations. Default is /var/lib/docker/tmp # Can be overriden by setting the following environment variable. # DOCKER_TMPDIR=/var/tmp # Controls the /etc/cron.daily/docker-logrotate cron job status. # To disable, uncomment the line below. # LOGROTATE=false
3.重启docker
systemctl daemon-reload systemctl restart docker
