一.在线安装 1.安装依赖 yum install -y yum-utils device-mapper-persistent-data lvm2
2.添加软件源
3.安装docker-ce
4.启动服务 systemctl start docker
5.查看docker版本信息 docker version
二.离线安装 1.登录镜像网站
https://download.docker.com/linux/static/stable/x86_64/
2.解压 tar -xvf docker-18.06.1-ce.tgz
3.把解压出来的文件移动到/usr/bin 目录下
cp docker/* /usr/bin/
4.将docker注册为service vim /etc/systemd/system/docker.service
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target
[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
# Uncomment TasksMax if your systemd version supports it.
# Only systemd 226 and above support this version.
#TasksMax=infinity
TimeoutStartSec=0
# set delegate yes so that systemd does not reset the cgroups of docker containers
Delegate=yes
# kill only the docker process, not all processes in the cgroup
KillMode=process
# restart the docker process if it exits prematurely
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
[Install]
WantedBy=multi-user.target
5.启动 chmod +x /etc/systemd/system/docker.service systemctl daemon-reload systemctl start docker systemctl enable docker.service 原文:https://blog.csdn.net/ywd1992/article/details/82897394
6.安装好的docker没有补全,从其他服务器拷贝一份docker ll /usr/share/bash-completion/completions/docker
7.将docker文件放置相同路径下,并生效 source /usr/share/bash-completion/completions/docker
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