监视包exec rails

我有下面的shell脚本,允许我启动我的rails应用程序,假设它被调用 开始-应用程序.sh

#!/bin/bash

cd /var/www/project/current
. /home/user/.rvm/environments/ruby-2.3.3
RAILS_SERVE_STATIC_FILES=true RAILS_ENV=production nohup bundle exec rails s -e production -p 4445 > /var/www/project/log/production.log 2>&1 &

上面的文件具有以下权限:

-rwxr-xr-x  1 user user   410 Mar 21 10:00 start-app.sh*

如果要检查进程,请执行以下操作:

ps aux | grep -v grep | grep ":4445"

它将提供以下输出:

user  2960  0.0  7.0 975160 144408 ?       Sl   10:37   0:07 puma 3.12.0 (tcp://0.0.0.0:4445) [20180809094218]

我grep“:4445”的原因是,我在不同端口上运行的进程很少。(针对不同项目)

现在来到monit,我使用apt-get安装它,repo的最新版本是 5.16条 乌班图16.04 ,还要注意monit是以根用户身份运行的,这就是我在下面指定gid uid的原因。(因为开始脚本是从“用户”而不是“根”执行的)

以下是monit的配置:

  set daemon 20            # check services at 20 seconds interval
  set logfile /var/log/monit.log
  set idfile /var/lib/monit/id
  set statefile /var/lib/monit/state


  set eventqueue
      basedir /var/lib/monit/events # set the base directory where events will be stored
      slots 100                     # optionally limit the queue size


  set mailserver xx.com port xxx
      username "xx@xx.com" password "xxxxxx"
      using tlsv12
      with timeout 20 seconds

  set alert xx@xx.com


  set mail-format {
       from: xx@xx.com
    subject: monit alert -- $EVENT $SERVICE
    message: $EVENT Service $SERVICE
                    Date:  $DATE
                  Action:  $ACTION
                    Host:  $HOST
             Description:  $DESCRIPTION
  }

 set limits {
        programOutput:     51200 B
        sendExpectBuffer:  25600 B
        fileContentBuffer: 51200 B
        networktimeout:    10 s
 }

  check system $HOST
    if loadavg (1min) > 4 then alert
    if loadavg (5min) > 2 then alert
    if cpu usage > 90% for 10 cycles then alert
    if memory usage > 85% then alert
    if swap usage > 35% then alert

check process nginx with pidfile /var/run/nginx.pid
        start program = "/bin/systemctl start nginx"
        stop program = "/bin/systemctl stop nginx"


check process redis
        matching "redis"
        start program = "/bin/systemctl start redis"
        stop program = "/bin/systemctl stop redis"

check process myapp
    matching ":4445"
    start program = "/bin/bash -c '/home/user/start-app.sh'" as uid "user" and gid "user"
    stop program = "/bin/bash -c /home/user/stop-app.sh" as uid "user" and gid "user"

   include /etc/monit/conf.d/*
   include /etc/monit/conf-enabled/*

现在monit正在检测并提醒我进程何时停止(如果我手动终止它)以及何时手动恢复,但它不会自动启动shell脚本。。根据/var/log/monit.log,它显示了以下内容:

[UTC Aug 13 10:16:41] info     : Starting Monit 5.16 daemon
[UTC Aug 13 10:16:41] info     : 'production-server' Monit 5.16 started
[UTC Aug 13 10:16:43] error    : 'myapp' process is not running
[UTC Aug 13 10:16:46] info     : 'myapp' trying to restart
[UTC Aug 13 10:16:46] info     : 'myapp' start: /bin/bash
[UTC Aug 13 10:17:17] error    : 'myapp' failed to start (exit status 0) -- no output

ps aux | grep-v grep | grep:4445“ ,但此输出与我显示的上述输出不同,它显示了正在执行的shell脚本的内容,尤其是此输出:

blablalba... nohup bundle exec rails s -e production -p 4445

然后就消失了。然后它试图重新执行shell。。一次又一次。。。 开始-应用程序.sh

编辑:根据我的理解和经验,这似乎是一个环境变量问题或路径问题,但我不确定如何解决,把环境变量放在monit中没有任何意义。。如果其他人想要编辑shell脚本或添加新的内容呢?我希望你明白我的意思