The lookup pipe is returning a 127 error, even though the file exists and has all the required permissions.

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1

I am trying to retrieve the version number of the installed executable. The complete path exists, the file has executable permissions, but I am encountering a 127 error, indicating that the file does not exist. Have I missed something?
Here is the code that I have:

  • set_fact: remote_version: “{{ lookup(‘ansible.builtin.pipe’, ‘/home/’ + username + ‘/program/executable_file’ + ’ --version’) }}”

The error that I am getting:
fatal: [xxx.yyy.zzz.fff]: FAILED! => {“msg”: “An unhandled exception occurred while running the lookup plugin ‘ansible.builtin.pipe’. Error was a <class ‘ansible.errors.AnsibleError’>, original message: lookup_plugin.pipe(/home/BreadPitt/program/executable --version) returned 127. lookup_plugin.pipe( /home/BreadPitt/program/executable --version) returned 127”}

2

My guess is that pipe is trying to run an executable named exactly this: “/home/BreadPitt/program/executable --version” vs passing the --version option to the executable.

Walter

3

Probably because the pipe lookup executes on the ansible controller,
not on the controlled node:
https://docs.ansible.com/ansible/latest/collections/ansible/builtin/pipe_lookup.html#notes

4

What is the correct way to use the lookup pipe filter on the remote host?

5

You don’t, you use the command or shell modules, and register the result, potentially manipulating the result into the shape you want with a subsequent set_fact task.

6

Thank you for clarification.