【Linux】根据一个安装软件需求，编写部署脚本

【需求】

将如下部署文档用一个shell脚本实现。

1）下载源码

cd  /usr/local/src
sudo curl -O http://nginx.org/download/nginx-1.23.0.tar.gz

2）解压

sudo tar zxf nginx-1.23.0.tar.gz
cd nginx-1.23.0

3）安装依赖

RHEL/Rocky

sudo yum install -y gcc  make  pcre-devel zlib-devel  openssl-devel

##ubuntu

sudo apt install  -y gcc  make  libpcre++-dev libssl-dev  zlib1g-dev

4）配置

sudo ./configure --prefix=/usr/local/nginx  --with-http_ssl_module

5）编译和安装

sudo make  && sudo  make install

6）编辑system服务管理脚本

sudo vi /lib/systemd/system/nginx.service #写入如下内容

[Unit]
Description=nginx - high performance web server
Documentation=http://nginx.org/en/docs/
After=network-online.target remote-fs.target nss-lookup.target
Wants=network-online.target
[Service]
Type=forking
PIDFile=/usr/local/nginx/logs/nginx.pid
ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
ExecReload=/bin/sh -c "/bin/kill -s HUP $(/bin/cat /usr/local/nginx/logs/nginx.pid)"
ExecStop=/bin/sh -c "/bin/kill -s TERM $(/bin/cat /usr/local/nginx/logs/nginx.pid)"
[Install]
WantedBy=multi-user.target

7）加载服务

sudo  systemctl daemon-reload

8）启动服务

sudo systemctl start nginx

【部署脚本】

#!/bin/bash
#检测上条命令是否有错误，如果有就抛出异常退出
sofeware_name="nginx-1.23.0"
status_ok(){
    if [ $? -ne 0 ]
    then
        echo "$1 error."
        exit 1
    fi
}

download_ng()
{
    cd  /usr/local/src
    if [ -f nginx-1.23.0.tar.gz ]
    then
        echo "当前目录已经存在nginx-1.23.0.tar.gz"
        echo "检测md5"
        ng_md5=`md5sum $sofeware_name.tar.gz|awk '{print $1}'`
        if [ ${ng_md5} == 'e8768e388f26fb3d56a3c88055345219' ]
        then
            return 0
        else
            sudo /bin/mv $sofeware_name.tar.gz $sofeware_name.tar.gz.old
        fi
    fi
    sudo curl -O http://nginx.org/download/nginx-1.23.0.tar.gz
    status_ok "下载Nginx"
}

install_ng()
{
    cd /usr/local/src
    echo "解压Nginx"
    sudo tar zxf $sofeware_name.tar.gz
    status_ok "解压Nginx"
    cd $sofeware_name


    echo "安装依赖"
    if which yum >/dev/null 2>&1
    then
        ## RHEL/Rocky
        for pkg in gcc make pcre-devel zlib-devel openssl-devel
        do
            if ! rpm -q $pkg >/dev/null 2>&1
            then
                sudo yum install -y $pkg
                status_ok "yum 安装$pkg"
            else
                echo "$pkg已经安装"
            fi
        done
    fi


    if which apt >/dev/null 2>&1
    then
        ##ubuntu
        for pkg in make libpcre++-dev  libssl-dev  zlib1g-dev
        do
            if ! dpkg -l $pkg >/dev/null 2>&1
            then
                sudo apt install -y $pkg
                status_ok "apt 安装$pkg"
            else
                echo "$pkg已经安装"
            fi
        done
    fi


    echo "configure Nginx"
    sudo ./configure --prefix=/usr/local/nginx  --with-http_ssl_module
    status_ok "Configure Nginx"


    echo "编译和安装"
    sudo make && sudo make install
    status_ok "编译和安装"


    echo "编辑systemd服务管理脚本"


    cat > /tmp/nginx.service <<EOF
[Unit]
Description=nginx - high performance web server
Documentation=http://nginx.org/en/docs/
After=network-online.target remote-fs.target nss-lookup.target
Wants=network-online.target


[Service]
Type=forking
PIDFile=/usr/local/nginx/logs/nginx.pid
ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
ExecReload=/bin/sh -c "/bin/kill -s HUP \$(/bin/cat /usr/local/nginx/logs/nginx.pid)"
ExecStop=/bin/sh -c "/bin/kill -s TERM \$(/bin/cat /usr/local/nginx/logs/nginx.pid)"


[Install]
WantedBy=multi-user.target
EOF


    sudo /bin/mv /tmp/nginx.service /lib/systemd/system/nginx.service
    status_ok "编辑nginx.service"


    echo "加载服务"
    sudo systemctl unmask nginx.service
    sudo  systemctl daemon-reload
    sudo systemctl enable nginx
    echo "启动Nginx"
    sudo systemctl start nginx
    status_ok "启动Nginx"
}

download_ng
install_ng

其他服务根据相应的需求进行脚本编写修改就可以了