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 update -y && yum install -y docker-ce

groupadd docker

usermod -aG docker admin

systemctl start docker

cat > /etc/docker/daemon.json <<EOF

{

"exec-opts": ["native.cgroupdriver=systemd"],

        "registry-mirrors": ["http://hub-mirror.c.163.com"], 

        "insecure-registries": ["hub.htmltoo.com:5000"],

        "storage-driver": "overlay2",

"log-driver": "json-file",

"log-opts": {

"max-size": "100m"

}

}

EOF

mkdir -p /etc/systemd/system/docker.service.d

systemctl daemon-reload && systemctl restart docker && systemctl enable docker