Executing commands from Lookup Plugin in development

Archives Ansible Developer
1

Hi there pals,

I am developing a Lookup plugin and I’m trying to figure out which is the best way to execute a system command using the built-ins from Ansible utils.

I am trying to use those libraries to call to a system command that the binary exists on /usr/bin folder:

  • from ansible.utils.cmd_functions import run_cmd

  • the os one with

  • os.system
  • subprocess.call
  • subprocess.Popen

But with all of them I get this error:

`

fatal: [vagrantServer]: FAILED! => {
“failed”: true,
“msg”: “An unhandled exception occurred while running the lookup plugin ‘hiera’. Error was a <type ‘exceptions.OSError’>, original message: [Errno 2] No such file or directory”

`

I have no problems using run_command library from a module, but this is not a module, it’s a plugin. Any ideas of how to solve it?

Thanks in advance.

Best regards

PS: Yeah, I’m pointing to the correct server and also the binary exists on it ;).
PS2: If I try to use for example Date commands, it works fine

2

Lookup plugins execute on the ansible controller, not on a remote server.

To execute on a remote server it needs to be a module.

3

Great, thats the reason of this behaviour :), Thanks Matt I will face the problem in a different way :).

Maybe I skip this part from documentation :).

Have a nice day.