Ansible playbook to upload and execute a python script

ansible

My playbook is as below:

- hosts : mygroup
  user : user
  sudo : yes
  tasks :
  - name : Copy script
    copy : 'src=/home/user/Scripts/logchecker.py dest=/opt/root2/logchecker.py owner=root group=root mode=755'
  - name : Execute script
    command : '/usr/bin/python /opt/root2/logchecker.py'

The file upload is working, But execution is failing. Even though I am able to execute the script without any issues directly on the server. Am I doing anything wrong?

Best Answer

I have used a similar playbook which works as expected:

# playbook.yml
---
- hosts: ${target}
  sudo: yes

  tasks:
  - name: Copy file
    copy: src=../files/test.py dest=/opt/test.py owner=howardsandford group=admin mode=755

  - name: Execute script
    command: /opt/test.py

And test.py:

#!/usr/bin/python

# write to a file
f = open('/tmp/test_from_python','w')
f.write('hi there\n')

Running the playboook:

ansible-playbook playbook.yml --extra-vars "target=the_host_to_run_script_on"

Shows:

PLAY [the_host_to_run_script_on] ***************************************************************

GATHERING FACTS ***************************************************************
ok: [the_host_to_run_script_on]

TASK: [Copy file] *************************************************************
changed: [the_host_to_run_script_on]

TASK: [Execute script] ********************************************************
changed: [the_host_to_run_script_on]

PLAY RECAP ********************************************************************
the_host_to_run_script_on  : ok=3    changed=2    unreachable=0    failed=0

And on the remote host:

$ cat /tmp/test_from_python
hi there

Several differences between our setup:

  • I don't have single quotes around the copy and command parameters
  • The shebang sets the python interpreter rather than specifying /usr/bin/python from the command line
  • I set the owner of the script to my own username and primary group that is in sudoers, rather than root

Hopefully this can point you in the right direction of where the differences might be.

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