安装Docker

Docker的简单安装

1、下载repo

wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo

2、安装Docker

yum -y install docker-ce-18.06.1.ce-3.el7

3、启动Docker

systemctl enable docker && systemctl start docker

4、测试Docker

docker --version

5、加速镜像下载：通过添加阿里云 YUM 软件源，可以加速镜像的下载

cat > /etc/docker/daemon.json << EOF 
{ 
    "registry-mirrors": ["https://b9pmyelo.mirror.aliyuncs.com"] 
}
EOF

重启Docker

systemctl restart docker

二进制安装Docker

1、下载

wget https://download.docker.com/linux/static/stable/x86_64/docker- 19.03.9.tgz

2、解压二进制包

tar zxvf docker-19.03.9.tgz
mv docker/* /usr/bin

3、systemd 管理 docker

cat > /usr/lib/systemd/system/docker.service << EOF
[Unit] 
Description=Docker Application Container Engine 
Documentation=https://docs.docker.com 
After=network-online.target firewalld.service 
Wants=network-online.target 
[Service] 
Type=notify 
ExecStart=/usr/bin/dockerd 
ExecReload=/bin/kill -s HUP $MAINPID 
LimitNOFILE=infinity 
LimitNPROC=infinity 
LimitCORE=infinity 
TimeoutStartSec=0 
Delegate=yes 
KillMode=process 
Restart=on-failure 
StartLimitBurst=3 
StartLimitInterval=60s 
[Install] 
WantedBy=multi-user.target
EOF

4、创建配置文件

mkdir /etc/docker
cat > /etc/docker/daemon.json << EOF
{
    "registry-mirrors": ["https://b9pmyelo.mirror.aliyuncs.com"]
}
EOF

• registry-mirrors 阿里云镜像加速器

5、启动并设置开机启动

systemctl daemon-reload 
systemctl start docker 
systemctl enable docker

6、测试Docker

docker --version

7、加速镜像下载：通过添加阿里云 YUM 软件源，可以加速镜像的下载

cat > /etc/docker/daemon.json << EOF 
{ 
    "registry-mirrors": ["https://b9pmyelo.mirror.aliyuncs.com"] 
}
EOF

重启Docker

systemctl restart docker