146 lines
4.0 KiB
Python
Executable File
146 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2017 Red Hat, Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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""" Check for available updates for a given package."""
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import collections
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import subprocess
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from ansible.module_utils.basic import AnsibleModule
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from yaml import safe_load as yaml_safe_load
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DOCUMENTATION = '''
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---
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module: check_package_update
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short_description: Check for available updates for a given package
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description:
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- Check for available updates for a given package
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options:
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package:
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required: true
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description:
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- The name of the package you want to check
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type: str
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pkg_mgr:
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required: true
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description:
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- Supported Package Manager, DNF or YUM
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type: str
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author: "Florian Fuchs"
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'''
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EXAMPLES = '''
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- hosts: webservers
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tasks:
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- name: Get available updates for packages
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check_package_update:
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package: python-tripleoclient
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pkg_mgr: "{{ ansible_pkg_mgr}}"
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'''
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SUPPORTED_PKG_MGRS = (
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'yum',
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'dnf',
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)
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PackageDetails = collections.namedtuple('PackageDetails',
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['name', 'version', 'release', 'arch'])
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def get_package_details(output):
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if output:
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return PackageDetails(
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output.split('|')[0],
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output.split('|')[1],
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output.split('|')[2],
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output.split('|')[3],
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)
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def _command(command):
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# Return the result of a subprocess call
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# as [stdout, stderr]
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process = subprocess.Popen(command,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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universal_newlines=True)
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return process.communicate()
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def check_update(module, package, pkg_mgr):
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if pkg_mgr not in SUPPORTED_PKG_MGRS:
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module.fail_json(
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msg='Package manager "{}" is not supported.'.format(pkg_mgr))
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return
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installed_stdout, installed_stderr = _command(
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['rpm', '-qa', '--qf',
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'%{NAME}|%{VERSION}|%{RELEASE}|%{ARCH}',
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package])
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# Fail the module if for some reason we can't lookup the current package.
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if installed_stderr != '':
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module.fail_json(msg=installed_stderr)
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return
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elif not installed_stdout:
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module.fail_json(
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msg='"{}" is not an installed package.'.format(package))
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return
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installed = get_package_details(installed_stdout)
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pkg_mgr_option = 'available'
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if pkg_mgr == 'dnf':
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pkg_mgr_option = '--available'
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available_stdout, available_stderr = _command(
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[pkg_mgr, '-q', 'list', pkg_mgr_option, installed.name])
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if available_stdout:
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new_pkg_info = available_stdout.split('\n')[1].rstrip().split()[:2]
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new_ver, new_rel = new_pkg_info[1].split('-')
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module.exit_json(
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changed=False,
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name=installed.name,
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current_version=installed.version,
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current_release=installed.release,
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new_version=new_ver,
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new_release=new_rel)
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else:
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module.exit_json(
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changed=False,
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name=installed.name,
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current_version=installed.version,
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current_release=installed.release,
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new_version=None,
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new_release=None)
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def main():
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module = AnsibleModule(
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argument_spec=yaml_safe_load(DOCUMENTATION)['options']
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)
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check_update(module,
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module.params.get('package'),
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module.params.get('pkg_mgr'))
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if __name__ == '__main__':
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main()
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