docker安装 docker安装

一、操作系统 rhel7
二、离线安装 a)下载地址文档：https://docs.docker.com/install/linux/docker-ce/binaries/#install-static-binaries
安装包：https://download.docker.com/linux/static/stable/
【docker安装】本文使用的包：https://download.docker.com/linux/static/stable/x86_64/docker-19.03.2.tgz
b)安装 1.上传并解压下载的文件

tar xzvf /path/to/.tar.gz

2.复制文件

cp docker/* /usr/bin/

3.添加服务

cat > /etc/systemd/system/docker.service << EOF [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 EOF

4.启动

systemctl daemon-reload
systemctl start docker
systemctl enable docker

三、yum 方法安装

yum -y install yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fast
yum -y install docker-ce
systemctl start docker
systemctl enable docker