1、centos7 安装
yum install docker -y
2、通过二进制安装
#下载docker CE最新稳定版
Docker官网下载地址：[https://download.docker.com/linux/static/stable/x86_64/](https://download.docker.com/linux/static/stable/x86_64/)
#vim install_docker.sh 脚本，将下面的内容复制进去，并赋予脚本可执行权限
#!/bin/sh
usage(){
echo "Usage: $0 FILE_NAME_DOCKER_CE_TAR_GZ"
echo " $0 docker-17.09.0-ce.tgz"
echo "Get docker-ce binary from: [https://download.docker.com/linux/static/stable/x86_64/](https://download.docker.com/linux/static/stable/x86_64/)"
echo "eg: wget [https://download.docker.com/linux/static/stable/x86_64/docker-17.09.0-ce.tgz](https://download.docker.com/linux/static/stable/x86_64/docker-17.09.0-ce.tgz)"
echo ""
}
SYSTEMDDIR=/usr/lib/systemd/system
SERVICEFILE=docker.service
DOCKERDIR=/usr/bin
DOCKERBIN=docker
SERVICENAME=docker
if [ $# -ne 1 ]; then
usage
exit 1
else
FILETARGZ="$1"
fi
if [ ! -f ${FILETARGZ} ]; then
echo "Docker binary tgz files does not exist, please check it"
echo "Get docker-ce binary from: [https://download.docker.com/linux/static/stable/x86_64/](https://download.docker.com/linux/static/stable/x86_64/)"
echo "eg: wget [https://download.docker.com/linux/static/stable/x86_64/docker-17.09.0-ce.tgz](https://download.docker.com/linux/static/stable/x86_64/docker-17.09.0-ce.tgz)"
exit 1
fi
echo "##unzip : tar xvpf ${FILETARGZ}"
tar xvpf ${FILETARGZ}
echo
echo "##binary : ${DOCKERBIN} copy to ${DOCKERDIR}"
cp -p ${DOCKERBIN}/* ${DOCKERDIR} >/dev/null 2>&1
which ${DOCKERBIN}
echo "##systemd service: ${SERVICEFILE}"
echo "##docker.service: create docker systemd file"
cat >${SYSTEMDDIR}/${SERVICEFILE} <<EOF
[Unit]
Description=Docker Application Container Engine
Documentation=[http://docs.docker.com](http://docs.docker.com/)
After=network.target docker.socket
[Service]
Type=notify
EnvironmentFile=-/run/flannel/docker
WorkingDirectory=/usr/local/bin
ExecStart=/usr/bin/dockerd \
-H [tcp://0.0.0.0:4243](tcp://0.0.0.0:4243/) \
-H unix:///var/run/docker.sock \
--selinux-enabled=false \
--log-opt max-size=1g
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=on-failure
[Install]
WantedBy=multi-user.target
EOF
echo ""
systemctl daemon-reload
echo "##Service status: ${SERVICENAME}"
systemctl status ${SERVICENAME}
echo "##Service restart: ${SERVICENAME}"
systemctl restart ${SERVICENAME}
echo "##Service status: ${SERVICENAME}"
systemctl status ${SERVICENAME}
echo "##Service enabled: ${SERVICENAME}"
systemctl enable ${SERVICENAME}
echo "## docker version"
docker version
#通过下面的命令安装docker
./install-docker.sh docker-18.03.0-ce.tgz
#检查docker是否能正常使用
docker version --查看docker安装版本
3、修改docker源后进行安装
vi /etc/yum.repos.d/docker.repo
[dockerrepo]
name=Docker Repository
baseurl=[https://yum.dockerproject.org/repo/main/centos/$releasever/](https://yum.dockerproject.org/repo/main/centos/$releasever/)
enabled=1
gpgcheck=1
gpgkey=[https://yum.dockerproject.org/gpg](https://yum.dockerproject.org/gpg)
yum install docker-engine
