CODEWITHSUNDEEP
pythonansible
phanindra
phanindra

Reputation: 285

How to choose a python interpreter for Ansible playbook?

I have python2.7 and python3.5 in my ansible server , while executing playbooks it is using python2.7. I wanted ansible to use python3.5 when executing playbooks. 

 in order:
   1 have set export path.
   2 also changed default interpreter path in ansible.cfg as well.
   3 have given specific interpretor path in hostsfile for particular host.

But still, ansible is not running python3.

Upvotes: 28

Views: 109194

Answers (2)

Paul-Beyond
Paul-Beyond

Reputation: 1737

If you want to set the Python interpreter for individual hosts and groups, set the ansible_python_interpreter inventory variable.

If however, you want to set the Python interpreter for global use, then set the interpreter_python key in the [defaults] section in the configuration file ansible.cfg.

For a complete list of possible values for the two options above, please see: https://docs.ansible.com/ansible/latest/reference_appendices/interpreter_discovery.html

Also see this example for usage of ansible_python_interpreter: https://docs.ansible.com/ansible/2.4/python_3_support.html , section "Testing Python 3 module support".

Upvotes: 26

Vladimir Botka
Vladimir Botka

Reputation: 68274

1) There is ANSIBLE_PYTHON_INTERPRETER configuration parameter to set:

Path to the Python interpreter to be used for module execution on remote targets

2) The version of Python on controller depends on how Ansible has been built. For example

shell> grep DISTRIB_DESCRIPTION /etc/lsb-release
DISTRIB_DESCRIPTION="Ubuntu 18.04.4 LTS"

shell> dpkg -l | grep ansible
ii  ansible                                2.9.6-1ppa~bionic

shell> ansible --version
ansible 2.9.6
  config file = /home/admin/.ansible.cfg
  configured module search path = [u'/home/admin/.ansible/my_modules']
  ansible python module location = /usr/lib/python2.7/dist-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.17 (default, Nov  7 2019, 10:07:09) [GCC 7.4.0]

shell> grep DISTRIB_DESCRIPTION /etc/lsb-release
DISTRIB_DESCRIPTION="Ubuntu 20.04 LTS"

shell> dpkg -l | grep ansible
ii  ansible                               2.9.6+dfsg-1

shell> ansible --version
ansible 2.9.6
  config file = /home/admin/.ansible.cfg
  configured module search path = ['/home/admin/.ansible/my_modules']
  ansible python module location = /usr/lib/python3/dist-packages/ansible
  executable location = /usr/bin/ansible
  python version = 3.8.2 (default, Apr 27 2020, 15:53:34) [GCC 9.3.0]

sheel> uname -a
FreeBSD master.example.com 12.1-RELEASE FreeBSD 12.1-RELEASE r354233 GENERIC  amd64

shell> pkg info | grep ansible
py27-ansible-2.8.5             Radically simple IT automation
py36-ansible-2.8.5             Radically simple IT automation

shell> ansible --version
ansible 2.8.5
  config file = /home/admin/.ansible.cfg
  configured module search path = ['/home/admin/.ansible/plugins/modules', '/usr/local/share/py36-ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python3.6/site-packages/ansible
  executable location = /usr/local/bin/ansible
  python version = 3.6.9 (default, Nov 14 2019, 01:16:50) [GCC 4.2.1 Compatible FreeBSD Clang 6.0.1 (tags/RELEASE_601/final 335540)

Upvotes: 7

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