linux安装docker

1. 确保centos7能够访问外网

能够ping通外网

yum -y install gcc

yum -y install gcc-c++

gcc -v

yum install -y 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

查看docker版本
yum list docker-ce --showduplicates | sort -r
选择版本号
yum -y install docker-ce-版本号

systemctl start docker
systemctl enable docker

docker version

mkdir -p /etc/docker

tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://gdewd58d.mirror.aliyuncs.com"]
}
EOF

systemctl daemon-reload
systemctl restart docker

docker info

docker search 镜像名称

docker pull 镜像名称

docker images