该脚本支持centos7和centos8系统
#！/bin/bash
#一键安装docker-ce和docker-compose,本脚本适用于CentOS7和8
function os7_install_docker () {
rpm -qa | grep docker &> /etc/null
if [ $? -ne 0 ]
then
echo "开始安装docker..."
# step 1: 安装必要的一些系统工具
yum install -y yum-utils device-mapper-persistent-data lvm2
# Step 2: 添加软件源信息
filename='/etc/yum.repos.d/docker-ce.repo'
if [ ! -f ${filename} ]
then
echo "开始配置${filename} 文件"
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fast
else
echo "${filename} 已存在"
fi
# Step 3: 安装Docker-CE docker-compose
yum -y install docker-ce docker-compose
# Step 4: 开启Docker服务
systemctl enable docker
systemctl start docker
echo -e "docker installed [\033[32m OK \033[0m]"
sleep 3
else
echo "docker 已存在"
fi
}
#------------------------centos8安装docker------------------------
function os8_install_docker () {
rpm -qa | grep docker &> /etc/null
if [ $? -ne 0 ]
then
echo "开始安装docker..."
# step 1: 安装必要的一些系统工具
yum install -y yum-utils device-mapper-persistent-data lvm2
# Step 2: 添加软件源信息
filename='/etc/yum.repos.d/docker-ce.repo'
if [ ! -f ${filename} ]
then
echo "开始配置${filename} 文件"
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fast
else
echo "${filename} 已存在"
fi
# Step 3: 安装Docker-CE
yum --allowerasing -y install docker-ce
# Step 4: 安装Docker-Compose服务
curl -L https://github.com/docker/compose/releases/download/v2.23.0/docker-compose-linux-x86_64 -o /usr/local/bin/docker-compose
# Step 5: 开启Docker服务
systemctl enable docker
systemctl start docker
echo -e "docker installed [\033[32m OK \033[0m]"
sleep 3
else
echo "docker 已存在"
fi
}
#------------------------配置镜像加速服务------------------------
function setup_fast_mirros(){
echo "正在配置镜像加速服务....."
filename='/etc/docker/daemon.json'
if [ ! -f ${filename} ]
then
cat > ${filename} <<EOF
{
"registry-mirrors": [
"https://docker.mirrors.ustc.edu.cn",
"http://hub-mirror.c.163.com",
"https://registry.docker-cn.com"
]
}
EOF
sleep 3
if [ -f ${filename} ]
then
echo -e "文件配置成功 [\033[32m OK \033[0m]"
systemctl daemon-reload
systemctl restart docker
docker info
which docker
sleep 3
else
echo -e "文件配置失败[\033[31m FAILED \033[0m]"
exit
fi
else
echo "${filename} 文件已存在，未做修改"
fi
}
#------------------------拉取常用镜像------------------------
function docker_pull_images(){
# 系统镜像
os_images=("centos:7.9.2009")
# web服务镜像
web_images=("nginx" "tomcat" "httpd" )
# 数据库镜像
database_images=("mysql:5.7.32" "mysql:8")
# 开发工具镜像
develop_images=("python" "busybox" )
# docker镜像
docker_image=("docker")
# 拉取镜像时只需调用对应的变量
download_images=(
# "${os_images[*]}"
"${web_images[*]}"
"${database_images[*]}"
# "${develop_images[*]}"
# "${docker_image[*]}"
)
rpm -qa | grep docker-ce &> /etc/null
if [ $? -eq 0 ]
then
echo "拉取镜像开始..."
sleep 1
for image in ${download_images[*]}
do
echo "正在拉取镜像---${image}---"
image_name=`echo ${image} | awk -F: '{print $1}'`
docker images ${image} | grep -o ${image_name} &> /etc/null
if [ $? -ne 0 ]
then
docker pull ${image}
else
echo -e "${image}镜像已存在 [\033[32m OK \033[0m]"
fi
sleep 1
done
echo -e "镜像拉取完毕 [\033[32m OK \033[0m] 详情如下："
docker images
else
echo -e "docker未安装，请安装docker后再拉取镜像 [\033[31m ERROR \033[0m]"
exit
fi
}
#------------------------开启功能------------------------
os=`cat /etc/redhat-release | grep -o '[0-9]'|sed -n '1p'`
if [ $os == 7 ];then
os7_install_docker
setup_fast_mirros
elif [ $os == 8 ];then
os8_install_docker
setup_fast_mirros
else
echo "此脚本不支持该系统安装！"
exit
fi
# 1 安装docker
#install_docker
# 2 配置加速服务
#0setup_fast_mirros
# 3 拉取常用镜像
# docker_pull_images
centos7卸载docker
yum remove -y docker-ce docker-ce-cli containerd.io
centos8卸载docker
yum remove -y docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-selinux \
docker-engine-selinux \
docker-engine