docker 容器相对比较简单,不涉及认证授权,只需要本地启动起来即可,唯一需要注意就是添加flannel网络。
# yum remove docker-latest-logrotate docker-logrotate docker-selinux dockdocker-engine #清除以前的docker
添加docker的服务文件
cat > /lib/systemd/system/docker.service <<"EOF" [Unit] Description=Docker Application Container Engine Documentation=http://docs.docker.io [Service] Type=notify EnvironmentFile=-/run/flannel/docker ExecStart=/usr/local/bin/dockerd --log-level=error $DOCKER_NETWORK_OPTIONS ExecReload=/bin/kill -s HUP $MAINPID Restart=on-failure RestartSec=5 LimitNOFILE=infinity LimitNPROC=infinity LimitCORE=infinity Delegate=yes KillMode=process [Install] WantedBy=multi-user.target EOF
启动docker,绿色代表启动成功
# for SERVICES in docker;do systemctl enable $SERVICES; systemctl start $SERVICES; systemctl status $SERVICES; done
验证
#ip a 3: flannel.1:mtu 1450 qdisc noqueue state UNKNOWN link/ether 2a:bd:11:f7:6c:b8 brd ff:ff:ff:ff:ff:ff inet 172.30.47.0/32 scope global flannel.1 valid_lft forever preferred_lft forever inet6 fe80::28bd:11ff:fef7:6cb8/64 scope link valid_lft forever preferred_lft forever 4: docker0: mtu 1500 qdisc noqueue state DOWN link/ether 02:42:f7:5d:42:f3 brd ff:ff:ff:ff:ff:ff inet 172.30.47.1/24 scope global docker0 valid_lft forever preferred_lft forever