centos自动升级依赖

• 时间：2017年10月17日
• 作者：Kali
• 邮箱：cyysu.github.io@gmail.com/2869905223@qq.com/微信lwyx1413
• 版本：4.0
• 描述：centos下自动解决依赖脚本，和centos自启动脚本配套，用来启动Python程序

脚本编写

脚本内容

YUM=/var/run/yum.pid
#yum pid error
yumError(){
    if [ -e ${YUM} ];then
		rm -rf ${YUM}
    fi
}
## install dependence
dependence(){
    echo -e "\033[41m `date`: Begin to install software!!!\033[0m"
    yumError
    yum install -y vim epel-release net-tools traceroute python gcc python-devel Cython 2&>/dev/null
}
## update system
update(){
    echo -e "\033[41m `date`: Begin to update system!!!\033[0m"
    if [ $? -eq 0 ];then
	yumError
        yum -y update 2&>/dev/null
        if [ $? -eq 0 ];then
           yumError 
       yum install -y python-pip 2&>/dev/null
        fi
    else
       yumError
           yum -y update 2&>/dev/null
           yum install -y python-pip 2&>/dev/null
    fi
}
## install python dependence software
pythonSoftware(){
    echo -e "\033[41m `date`: Begin to install python dependence software!!!\033[0m"
    if [ $? -eq 0 ];then
        pip install paho-mqtt 2&>/dev/null
    fi
    if [ $? -eq 0 ];then
        pip install modbus-tk 2&>/dev/null
    fi
}
# main function
case "$1" in
  start)
	   dependence
           update
           pythonSoftware
	   ;;
  stop)
	   ;;
  status)
	   echo $?
       ;;
  *)
       echo "Usage autostart.sh [start|stop]" >&2
       exit 3
esac

系统服务

将下面的内容增加到/lib/systemd/system/中，然后就可以使用systemctl控制这个服务了

autostart.service

#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.
[Unit]
Description=autostart python service
After=network.target
[Service]
ExecStart=/opt/autostart.sh start
Type=forking
PIDFile=/opt/start.pid
PrivateTmp=true
[Install]
WantedBy=multi-user.target

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