为什么要写这个脚本

写脚本的目的是帮我们减少重复的工作；至于使用CI/CD工具，只能说各有各的便利之处。脚本简单明了。

此脚本应用场景

比如你有一个朋友是软件开发，又需要自己频繁上线springboot应用程序测试，那这个频繁上线的工作就可以交给这个脚本来实现啦

实现思路

使用python，把频繁上线应用这个重复操作，写成脚本。
比如：启动springboot，查询springboot进程id，杀掉进程id，启动新上线的springboot，这一流水线操作

python 获取进程id

这里使用 subprocess 模块，详细说明 subprocess — 子进程管理, 文档是中文的可以看懂

def getAppPid(app):
    '''获取app的进程id
    Args:
      app: app name
    '''
    pid = None
    getAppPidCmdStr = 'ps -ef |grep %s|grep -v \'grep\|%s\'' % (app, os.path.basename(__file__))
    log.info("~$ %s", getAppPidCmdStr)
    getAppPidCmdReturn = subprocess.Popen(getAppPidCmdStr, shell=True, stdout=subprocess.PIPE).stdout.read().splitlines()
    if len(getAppPidCmdReturn) > 0:
        log.info(repr(getAppPidCmdReturn[0]))
        pid = getAppPidCmdReturn[0].split()[1]
    if pid:
        return pid.decode('utf-8')
    else:
        return pid

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启动spring boot应用

根据获取的pid决定是否启动，启动完再查一遍pid确认是否启动成功。

def runApp(app):
    linux, windows = getSecriptRunPlatform()
    if windows:
        # appStartCmdStr = 'java -cp application.jar com.example.App'
        appStartCmdStr = 'java -jar %s' % app
        subprocess.run(appStartCmdStr.split(' '))
    elif linux:
        pid = getAppPid(app)
        if pid is not None:
            log.info("App already running. pid:%s", pid)
            appInfo_ = getAppInfo()
            appInfo_['pid'] = pid
            setAppInfo(appInfo_)
            sys.exit()
        # appStartCmdStr = 'java -cp application.jar com.example.App > ./log/app.log 2>&1 &'
        # appStartCmdStr = 'nohup java -cp %s com.example.App > ./log/app.log 2>&1 &' % app
        appStartCmdStr = 'nohup java -jar %s > /dev/null 2>&1 &' % app
        log.info("~$ %s", appStartCmdStr)
        subprocess.Popen(appStartCmdStr, shell=True).wait(3)
        pid = getAppPid(app)
        if pid:
            log.info("App run successful, pid:%s", pid)
            appInfo_ = getAppInfo()
            appInfo_['app'] = app
            appInfo_['pid'] = pid
            setAppInfo(appInfo_)
        else:
            log.info("App run failed!")
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停止spring boot应用

也是根据查询到的pid，直接kill掉对应的进程

def _stop(app):
    linux, windows = getSecriptRunPlatform()
    if windows:
        log.info("windows app sotp not support.")
        sys.exit()
    appInfo = getAppInfo()
    if app:
        pid = getAppPid(app)
    elif not appInfo['app'] == "":
        pid = getAppPid(appInfo['app'])
    else:
        log.info("App not found.")
        sys.exit()
    if pid is not None:
        if linux:
            stopCommand = 'kill %s' % pid
            log.info("~$ %s", stopCommand)
            subprocess.Popen(stopCommand, shell=True).wait(3)
            log.info("App stoped")
            appInfo['pid'] = APP_NOT_RUN
            setAppInfo(appInfo)
    else:
        log.info("App already stoped.")
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源码已开源

需要的自取 python manage services script