第三章 Docker脚本安装

[root@jindada /scripts]$ cat docker_ins_apm.sh 
#!/usr/bin/bash
# Author:jh
# Time:2021-04-21  11:54:22
# Name:docker_ins_apm.sh
# Version: 1.0
# Discription: To  

rely_software=(yum-utils device-mapper-persistent-data lvm2)

#1.检测系统内核版本
kernel_version=`uname -a |awk '{print $3}'|cut -d. -f1`
if [ $kernel_version -ge 3 ];then
    echo 'The System Can Install docker;' 
else
    echo 'The System Can not Install docker;';exit 
fi

#2.安装依赖软件
for i in ${rely_software[*]}
do       
    rpm -q $i &>/dev/null
    if [ $? -eq 0 ];then
        echo "$i is installed"            
    else            
        yum -y install $i  &>/dev/null                                                           
        action "$i is installing"  /usr/bin/true           
    fi                     
done

#3.添加docker镜像源
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
if [ $? -eq 0 ];then
    echo "Docker Image added;" 
else 
    echo "Docker Image add failed" 
fi

#4.安装docker
yum install docker-ce -y

#5.启动docker并设置开机自启
systemctl enable --now docker
if [ $? -eq 0 ];then
    echo "Docker started;" 
else    
    echo "Docker start failed"
fi

#6.验证服务
docker_version=`docker -v`
echo $docker_version

#7.设置加速器
sudo mkdir -p /etc/docker
sudo cat >/etc/docker/daemon.json <<EOF
{
      "registry-mirrors": ["https://8mh75mhz.mirror.aliyuncs.com"]
  }
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

#8.docker安装完成提示语
cat << EOF
+-------------------------------------------------+
| docker 安 装 已 完 成                           |
| 请 使 用 相 关 服 务 !                          |
+-------------------------------------------------+
EOF

sleep 5