centos7安装docker

• 安装docker

yum update -y
yum install -y yum-utils
yum-config-manager \
--add-repo \
http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fase
yum install docker-ce docker-ce-cli containerd.io -y

• 启动docker

sudo systemctl start docker
docker --version
sudo systemctl enable docker

• 修改配置

mkdir /data/docker
vi /etc/docker/daemon.json

{
"registry-mirrors": [
"https://registry.docker-cn.com"
],
"data-root": "/data/docker/",
"log-driver": "json-file",
"log-opts": {
"max-size": "1000m",
"max-file": "5"
}
}

• 配置生效

systemctl daemon-reload
systemctl restart docker
docker info