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https://github.com/thegeeklab/ansible-later.git
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101 lines
4.1 KiB
Python
101 lines
4.1 KiB
Python
# (c) 2018, Ansible Project
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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from ansible.plugins.action import ActionBase
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try:
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from __main__ import display
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except ImportError:
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from ansible.utils.display import Display
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display = Display()
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class ActionModule(ActionBase):
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TRANSFERS_FILES = False
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def run(self, tmp=None, task_vars=None):
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'''
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Action plugin handler for yum3 vs yum4(dnf) operations.
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Enables the yum module to use yum3 and/or yum4. Yum4 is a yum
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command-line compatibility layer on top of dnf. Since the Ansible
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modules for yum(aka yum3) and dnf(aka yum4) call each of yum3 and yum4's
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python APIs natively on the backend, we need to handle this here and
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pass off to the correct Ansible module to execute on the remote system.
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'''
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self._supports_check_mode = True
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self._supports_async = True
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result = super(ActionModule, self).run(tmp, task_vars)
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del tmp # tmp no longer has any effect
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# Carry-over concept from the package action plugin
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module = self._task.args.get('use_backend', "auto")
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if module == 'auto':
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try:
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if self._task.delegate_to: # if we delegate, we should use delegated host's facts
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module = self._templar.template("{{hostvars['%s']['ansible_facts']['pkg_mgr']}}" % self._task.delegate_to)
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else:
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module = self._templar.template("{{ansible_facts.pkg_mgr}}")
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except Exception:
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pass # could not get it from template!
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if module not in ["yum", "yum4", "dnf"]:
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facts = self._execute_module(module_name="setup", module_args=dict(filter="ansible_pkg_mgr", gather_subset="!all"), task_vars=task_vars)
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display.debug("Facts %s" % facts)
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module = facts.get("ansible_facts", {}).get("ansible_pkg_mgr", "auto")
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if (not self._task.delegate_to or self._task.delegate_facts) and module != 'auto':
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result['ansible_facts'] = {'pkg_mgr': module}
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if module != "auto":
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if module == "yum4":
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module = "dnf"
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if module not in self._shared_loader_obj.module_loader:
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result.update({'failed': True, 'msg': "Could not find a yum module backend for %s." % module})
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else:
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# run either the yum (yum3) or dnf (yum4) backend module
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new_module_args = self._task.args.copy()
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if 'use_backend' in new_module_args:
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del new_module_args['use_backend']
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display.vvvv("Running %s as the backend for the yum action plugin" % module)
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result.update(self._execute_module(module_name=module, module_args=new_module_args, task_vars=task_vars, wrap_async=self._task.async_val))
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# Now fall through to cleanup
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else:
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result.update(
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{
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'failed': True,
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'msg': ("Could not detect which major revision of yum is in use, which is required to determine module backend.",
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"You can manually specify use_backend to tell the module whether to use the yum (yum3) or dnf (yum4) backend})"),
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}
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)
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# Now fall through to cleanup
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# Cleanup
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if not self._task.async_val:
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# remove a temporary path we created
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self._remove_tmp_path(self._connection._shell.tmpdir)
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return result
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