[SOLVED] Running a service in the background withouth getting stuck

Issue

Currently I am having an issue with trying to run a process/script in the background[The master starts it on the minion]

The script is something like this:

#!/bin/bash

nohup ping 8.8.8.8 >/dev/null&

And I call it from the master with:

Process-Name:
  service.running:
   - name: Script-Name
   - enable: True

For some reason it gets stuck on the master,I've read a little bit on this issue[it has happenned before apparently] and tried their solutions on it but apparently nothing involving the service state seems to work.

Is there anyway to work around this?

Solution

In short, you should configure your script as system daemon first (SysV init.d script, or systemd unit, or ... depends on OS).

Details

The service.running function requires properly configured system service ~ daemon.

For example, on RHEL-based Linux, if you don't see your script name in the output of one of these commands, you should configure it as proper service first (which is a separate topic):

# systemd
systemctl list-units | grep your_service_name

# SysV init.d
chkconfig --list     | grep your_service_name

And because you want to start it in background, cmd.run function is not the right tool either:

• It will only report successful start of the script without waiting for its completion results.
• It will also start new instance of your script every time.

However, if all you simply want is to "fire and forget", use cmd.run.

Answered By - uvsmtid