CentOS7.4安装docker

lsb_release -a

uname -r

yum list installed | grep docker

yum -y install docker

systemctl start docker

systemctl status docker

wget https://download.docker.com/linux/static/stable/x86_64/docker-18.06.3-ce.tgz

tar -zxvf docker-18.06.3-ce.tgz

cp docker/* /usr/bin/

[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 --selinux-enabled=false --insecure-registry=127.0.0.1 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

chmod +x /etc/systemd/system/docker.service 

systemctl daemon-reload                

systemctl start docker

systemctl enable docker.service

systemctl status docker