#!/bin/bash
printf "==============》》开始搭建基础环境《《==============\n"
printf "1.开始关闭防火墙\n"

systemctl stop firewalld
systemctl disable firewalld

printf "防火墙已关闭\n"
printf "2.开始关闭 SeLinux\n"

setenforce 0
sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config

printf "3.关闭swap交换区\n"

swapoff -a
yes | cp /etc/fstab /etc/fstab_bak
cat /etc/fstab_bak |grep -v swap > /etc/fstab

printf "4.开始安装yum并替换阿里云eoel源\n"

# 安装wget
yum install wget -y
# 备份
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
# 获取阿里云yum源
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
# 获取阿里云epel源
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
# 清理缓存并创建新的缓存
yum clean all && yum makecache
# 系统更新
yum update -y

printf "5.同步时区,上海时区\n"

timedatectl set-timezone "Asia/Shanghai"
timedatectl
printf "\n"

# 安装 Docker CE
# 设置仓库
# 安装所需包
printf "6.开始安装docker需要的依赖\n"
yum install -y yum-utils \
    device-mapper-persistent-data \
    lvm2

# 新增 Docker 仓库,速度慢的可以换阿里云的源。
printf "7.新增 Docker 仓库,替换换阿里云的源\n"
yum-config-manager \
    --add-repo \
    http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
# 官方源地址
# https://download.docker.com/linux/centos/docker-ce.repo

# 安装 Docker CE.
printf "8.安装 Docker CE\n"
yum install -y containerd.io-1.2.10 \
    docker-ce-19.03.4 \
    docker-ce-cli-19.03.4

# 启动 Docker 并添加开机启动
printf "9.启动 Docker 并添加开机启动\n"
systemctl start docker
systemctl enable docker

printf "10.修改 Cgroup Driver\n"

cat > /etc/docker/daemon.json <<EOF
{
    "exec-opts": ["native.cgroupdriver=systemd"],
    "log-driver": "json-file",
    "log-opts": {
    "max-size": "100m"
    },
    "storage-driver": "overlay2",
    "registry-mirrors":[
        "https://kfwkfulq.mirror.aliyuncs.com",
        "https://2lqq34jg.mirror.aliyuncs.com",
        "https://pee6w651.mirror.aliyuncs.com",
        "http://hub-mirror.c.163.com",
        "https://docker.mirrors.ustc.edu.cn",
        "https://registry.docker-cn.com"
    ]
}
EOF

docker info|grep "Cgroup Driver"

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

printf "11.重启docker\n"
# Restart docker.
systemctl daemon-reload
systemctl restart docker