docker 安装脚本

#安装必备的软件包：
yum -y install vim vim-enhanced net-tools wget lrzsz bash-completion sysstat unzip

# 关闭SElinux
setenforce 0
sed -i 's/^SELINUX=enforcing$/SELINUX=disabled/' /etc/selinux/config

#更新软件包
#yum -y update


#设置防火墙：
systemctl stop firewalld
systemctl disable firewalld

 yum install iptables-services                     #  安装
systemctl restart iptables.service              #  重启防火墙使配置生效
systemctl enable iptables.service             #  设置防火墙开机启动

# step 1: 安装必要的一些系统工具
sudo yum install -y yum-utils device-mapper-persistent-data lvm2

# Step 2: 添加软件源信息

sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
# Step 3: 更新并安装 Docker-CE
sudo yum makecache fast
sudo yum -y install docker-ce

#添加加速器地址到/etc/docker/daemon.json  
sudo mkdir -p /home/docker
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "data-root":"/home/docker",
  "registry-mirrors": ["https://"],
  "default-address-pools":[{"base":"172.16.0.0/12","size":24}],
  "log-driver":"json-file",
  "log-opts": {"max-size":"500m", "max-file":"3"}
}
EOF

sudo systemctl daemon-reload
sudo systemctl restart docker
sudo systemctl enable docker

#vim /usr/lib/systemd/system/docker.service
#ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375