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https://github.com/ansible-collections/community.general.git
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2aeb79f45f
This is incomplete work, and requires some minor tweeks to the integration tests which are not included in this commit.
128 lines
4.8 KiB
Python
128 lines
4.8 KiB
Python
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
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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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# Make coding more python3-ish
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import signal
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from ansible import constants as C
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from ansible.errors import *
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from ansible.executor.task_queue_manager import TaskQueueManager
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from ansible.playbook import Playbook
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from ansible.utils.debug import debug
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class PlaybookExecutor:
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'''
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This is the primary class for executing playbooks, and thus the
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basis for bin/ansible-playbook operation.
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'''
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def __init__(self, playbooks, inventory, variable_manager, loader, options):
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self._playbooks = playbooks
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self._inventory = inventory
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self._variable_manager = variable_manager
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self._loader = loader
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self._options = options
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self._tqm = TaskQueueManager(inventory=inventory, callback='default', variable_manager=variable_manager, loader=loader, options=options)
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def run(self):
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'''
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Run the given playbook, based on the settings in the play which
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may limit the runs to serialized groups, etc.
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'''
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signal.signal(signal.SIGINT, self._cleanup)
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result = 0
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try:
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for playbook_path in self._playbooks:
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pb = Playbook.load(playbook_path, variable_manager=self._variable_manager, loader=self._loader)
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# FIXME: playbook entries are just plays, so we should rename them
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for play in pb.get_entries():
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self._inventory.remove_restriction()
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# Create a temporary copy of the play here, so we can run post_validate
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# on it without the templating changes affecting the original object.
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all_vars = self._variable_manager.get_vars(loader=self._loader, play=play)
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new_play = play.copy()
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new_play.post_validate(all_vars, fail_on_undefined=False)
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for batch in self._get_serialized_batches(new_play):
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if len(batch) == 0:
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raise AnsibleError("No hosts matched the list specified in the play", obj=play._ds)
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# restrict the inventory to the hosts in the serialized batch
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self._inventory.restrict_to_hosts(batch)
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# and run it...
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result = self._tqm.run(play=play)
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if result != 0:
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break
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if result != 0:
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# FIXME: do something here, to signify the playbook execution failed
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self._cleanup()
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return result
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except:
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self._cleanup()
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raise
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self._cleanup()
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return result
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def _cleanup(self, signum=None, framenum=None):
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return self._tqm.cleanup()
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def _get_serialized_batches(self, play):
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'''
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Returns a list of hosts, subdivided into batches based on
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the serial size specified in the play.
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'''
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# make sure we have a unique list of hosts
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all_hosts = self._inventory.get_hosts(play.hosts)
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# check to see if the serial number was specified as a percentage,
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# and convert it to an integer value based on the number of hosts
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if isinstance(play.serial, basestring) and play.serial.endswith('%'):
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serial_pct = int(play.serial.replace("%",""))
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serial = int((serial_pct/100.0) * len(all_hosts))
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else:
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serial = int(play.serial)
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# if the serial count was not specified or is invalid, default to
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# a list of all hosts, otherwise split the list of hosts into chunks
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# which are based on the serial size
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if serial <= 0:
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return [all_hosts]
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else:
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serialized_batches = []
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while len(all_hosts) > 0:
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play_hosts = []
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for x in range(serial):
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if len(all_hosts) > 0:
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play_hosts.append(all_hosts.pop(0))
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serialized_batches.append(play_hosts)
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return serialized_batches
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