我在一台电脑上使用paramiko、fabric、ansible去运行远程服务器上的service 脚本启动tomcat,该脚本直接在远程服务器上执行 service tomcat start,是可以正常执行的,但是在paramiko或者fabric中执行的时候,回显是显示正常执行了,随后打印的服务状态却是未执行,去远程服务器上查看也是未执行。
fabric脚本如下:`#!/usr/bin/env python
# _*_ coding:utf-8 _*_ from fabric.api import * env.user = 'root' env.hosts = [ '192.168.1.72' ] env.password = 'root' @task def server(): run('service tomcat status') run('service tomcat restart') run('service tomcat status')`
执行结果如下:
tomcat启动关闭脚本如下:
#!/bin/bash # # chkconfig: - 85 15 # description: Tomcat start/stop/status script # 包含函数库 . /etc/rc.d/init.d/functions # 获取网络配置 . /etc/sysconfig/network # 检测 NETWORKING 是否为 "yes" [ "${NETWORKING}" = "no" ] && exit 0 #Location of JAVA_HOME (bin files) export JAVA_HOME=/usr/java/latest #Add Java binary files to PATH export PATH=$JAVA_HOME/bin:$PATH #CATALINA_HOME is the location of the configuration files of this instance of Tomcat TOMCAT_HOME=/usr/local/tomcat #TOMCAT_USAGE is the message if this script is called without any options TOMCAT_USAGE="Usage: $0 {\e[00;32mstart\e[00m|\e[00;31mstop\e[00m|\e[00;32mstatus\e[00m|\e[00;31mrestart\e[00m}" #SHUTDOWN_WAIT is wait time in seconds for java proccess to stop SHUTDOWN_WAIT=10 tomcat_pid() { echo `ps -ef | grep $TOMCAT_HOME | grep -v grep | tr -s " "|cut -d" " -f2` } start() { pid=$(tomcat_pid) if [ -n "$pid" ];then echo -e "\e[00;31mTomcat is already running (pid: $pid)\e[00m" else echo -e "\e[00;32mStarting tomcat\e[00m" $TOMCAT_HOME/bin/startup.sh fi status } status(){ pid=$(tomcat_pid) if [ -n "$pid" ];then echo -e "\e[00;32mTomcat is running with pid: $pid\e[00m" else echo -e "\e[00;31mTomcat is not running\e[00m" fi } stop() { pid=$(tomcat_pid) if [ -n "$pid" ];then echo -e "\e[00;31mStoping Tomcat\e[00m" $TOMCAT_HOME/bin/shutdown.sh let kwait=$SHUTDOWN_WAIT count=0; until [ `ps -p $pid | grep -c $pid` = '0' ] || [ $count -gt $kwait ] do echo -n -e "\e[00;31mwaiting for processes to exit\e[00m\n"; sleep 1 let count=$count+1; done if [ $count -gt $kwait ];then echo -n -e "\n\e[00;31mkilling processes which didn't stop after $SHUTDOWN_WAIT seconds\e[00m" kill -9 $pid fi else echo -e "\e[00;31mTomcat is not running\e[00m" fi return 0 } case $1 in start) start ;; stop) stop ;; restart) stop start ;; status) status ;; *) echo -e $TOMCAT_USAGE ;; esac exit 0
问过几个群友,跟我说要后台执行,不然执行完该任务之后,终端退出,该脚本也会退出执行失败。让我用nohup执行,不管是在run里用 nohup service tomcat start 还是用 nohup fab -f server.py start >/tmp/nohup.out 执行脚本,都是一样的结果,求各位帮忙解答疑惑。
用run('',pty=False)
pty在True的情况下启动tomcat正常,但会在结束后导致tomcat进程也被干掉