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community.general/plugins/modules/packaging/os/rhsm_release.py

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2020-03-09 10:11:07 +01:00
#!/usr/bin/python
# (c) 2018, Sean Myers <sean.myers@redhat.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = '''
---
module: rhsm_release
short_description: Set or Unset RHSM Release version
description:
- Sets or unsets the release version used by RHSM repositories.
notes:
- This module will fail on an unregistered system.
Use the C(redhat_subscription) module to register a system
prior to setting the RHSM release.
requirements:
- Red Hat Enterprise Linux 6+ with subscription-manager installed
options:
release:
description:
- RHSM release version to use (use null to unset)
required: true
author:
- Sean Myers (@seandst)
'''
EXAMPLES = '''
# Set release version to 7.1
- name: Set RHSM release version
rhsm_release:
release: "7.1"
# Set release version to 6Server
- name: Set RHSM release version
rhsm_release:
release: "6Server"
# Unset release version
- name: Unset RHSM release release
rhsm_release:
release: null
'''
RETURN = '''
current_release:
description: The current RHSM release version value
returned: success
type: str
'''
from ansible.module_utils.basic import AnsibleModule
import re
# Matches release-like values such as 7.2, 6.10, 10Server,
# but rejects unlikely values, like 100Server, 100.0, 1.100, etc.
release_matcher = re.compile(r'\b\d{1,2}(?:\.\d{1,2}|Server)\b')
def _sm_release(module, *args):
# pass args to s-m release, e.g. _sm_release(module, '--set', '0.1') becomes
# "subscription-manager release --set 0.1"
sm_bin = module.get_bin_path('subscription-manager', required=True)
cmd = '{0} release {1}'.format(sm_bin, " ".join(args))
# delegate nonzero rc handling to run_command
return module.run_command(cmd, check_rc=True)
def get_release(module):
# Get the current release version, or None if release unset
rc, out, err = _sm_release(module, '--show')
try:
match = release_matcher.findall(out)[0]
except IndexError:
# 0'th index did not exist; no matches
match = None
return match
def set_release(module, release):
# Set current release version, or unset if release is None
if release is None:
args = ('--unset',)
else:
args = ('--set', release)
return _sm_release(module, *args)
def main():
module = AnsibleModule(
argument_spec=dict(
release=dict(type='str', required=True),
),
supports_check_mode=True
)
target_release = module.params['release']
# sanity check: the target release at least looks like a valid release
if target_release and not release_matcher.findall(target_release):
module.fail_json(msg='"{0}" does not appear to be a valid release.'.format(target_release))
# Will fail with useful error from s-m if system not subscribed
current_release = get_release(module)
changed = (target_release != current_release)
if not module.check_mode and changed:
set_release(module, target_release)
# If setting the release fails, then a fail_json would have exited with
# the s-m error, e.g. "No releases match '7.20'...". If not, then the
# current release is now set to the target release (job's done)
current_release = target_release
module.exit_json(current_release=current_release, changed=changed)
if __name__ == '__main__':
main()