ansible.posix/plugins/module_utils/_respawn.py
Maxwell G 8ec2c261bd
add helper to respawn modules with system python
The seboolean, selinux, firewalld, and firewalld_info modules depend on
system bindings that are only available for the default system python
interpreter. ansible-core is not packaged for the default system python
interpreter on RHEL 8 and 9. When automatic interpreter discovery does
not occur (e.g. when using implicit localhost [1]), ansible-core will
not use the system interpreter to run ansible modules and the
aforementioned modules will not work even if the bindings are installed.
The RHEL ansible-core maintainers as well as the EPEL ansible and
ansible-collection-* package maintainers (inc. me) have gotten multiple
bug reports about this. We have been telling people to fix their setup
to use the correct Python interpreter. Fortunately, ansible-core 2.11
and above have a module utility that'll respawn modules to use the
correct system interpreter.

[1] https://docs.ansible.com/ansible/latest/inventory/implicit_localhost.html
2023-05-14 05:44:02 +00:00

45 lines
1.1 KiB
Python

# Copyright (c) 2023 Maxwell G <maxwell@gtmx.me>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
"""
Helpers to respawn a module to run using the system interpreter
"""
from __future__ import absolute_import, division, print_function
__metaclass__ = type
try:
from ansible.module_utils.common import respawn
except ImportError:
HAS_RESPAWN_UTIL = False
else:
HAS_RESPAWN_UTIL = True
SYSTEM_PYTHON_INTERPRETERS = (
"/usr/bin/libexec/platform-python",
"/usr/bin/python3",
"/usr/bin/python2",
"/usr/bin/python",
)
def respawn_module(module):
"""
Respawn an ansible module to using the first interpreter in
SYSTEM_PYTHON_INTERPRETERS that contains `module`.
Args:
module (str): Name of python module to search for
Returns:
Returns None if the module cannot be respawned.
"""
if respawn.has_respawned():
return
interpreter = respawn.probe_interpreters_for_module(
SYSTEM_PYTHON_INTERPRETERS, module
)
if interpreter:
respawn.respawn_module(interpreter)