9773a1f289
* Add a Singleton class, use it with Display * update six import * Move remaining failes to display singleton * Fix rebase issues * Singleton improvements * Add code-smell for 'from __main__ import display'. ci_complete * s/self/cls/g * Add docs for no-main-display * Address linting issues * Add changelog fragment. ci_complete * Implement reentrant lock for class instantiation in Singleton * Add Display singleton porting guide
191 lines
8.2 KiB
Python
191 lines
8.2 KiB
Python
# (c) 2012, 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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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import os
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import stat
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from ansible.cli import CLI
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from ansible.errors import AnsibleError, AnsibleOptionsError
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from ansible.executor.playbook_executor import PlaybookExecutor
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from ansible.playbook.block import Block
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from ansible.playbook.play_context import PlayContext
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from ansible.utils.display import Display
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display = Display()
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class PlaybookCLI(CLI):
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''' the tool to run *Ansible playbooks*, which are a configuration and multinode deployment system.
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See the project home page (https://docs.ansible.com) for more information. '''
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def parse(self):
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# create parser for CLI options
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parser = CLI.base_parser(
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usage="%prog [options] playbook.yml [playbook2 ...]",
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connect_opts=True,
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meta_opts=True,
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runas_opts=True,
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subset_opts=True,
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check_opts=True,
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inventory_opts=True,
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runtask_opts=True,
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vault_opts=True,
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fork_opts=True,
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module_opts=True,
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desc="Runs Ansible playbooks, executing the defined tasks on the targeted hosts.",
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)
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# ansible playbook specific opts
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parser.add_option('--list-tasks', dest='listtasks', action='store_true',
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help="list all tasks that would be executed")
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parser.add_option('--list-tags', dest='listtags', action='store_true',
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help="list all available tags")
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parser.add_option('--step', dest='step', action='store_true',
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help="one-step-at-a-time: confirm each task before running")
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parser.add_option('--start-at-task', dest='start_at_task',
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help="start the playbook at the task matching this name")
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self.parser = parser
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super(PlaybookCLI, self).parse()
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if len(self.args) == 0:
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raise AnsibleOptionsError("You must specify a playbook file to run")
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display.verbosity = self.options.verbosity
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self.validate_conflicts(runas_opts=True, vault_opts=True, fork_opts=True)
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def run(self):
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super(PlaybookCLI, self).run()
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# Note: slightly wrong, this is written so that implicit localhost
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# Manage passwords
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sshpass = None
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becomepass = None
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passwords = {}
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# initial error check, to make sure all specified playbooks are accessible
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# before we start running anything through the playbook executor
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for playbook in self.args:
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if not os.path.exists(playbook):
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raise AnsibleError("the playbook: %s could not be found" % playbook)
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if not (os.path.isfile(playbook) or stat.S_ISFIFO(os.stat(playbook).st_mode)):
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raise AnsibleError("the playbook: %s does not appear to be a file" % playbook)
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# don't deal with privilege escalation or passwords when we don't need to
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if not self.options.listhosts and not self.options.listtasks and not self.options.listtags and not self.options.syntax:
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self.normalize_become_options()
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(sshpass, becomepass) = self.ask_passwords()
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passwords = {'conn_pass': sshpass, 'become_pass': becomepass}
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loader, inventory, variable_manager = self._play_prereqs(self.options)
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# (which is not returned in list_hosts()) is taken into account for
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# warning if inventory is empty. But it can't be taken into account for
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# checking if limit doesn't match any hosts. Instead we don't worry about
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# limit if only implicit localhost was in inventory to start with.
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#
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# Fix this when we rewrite inventory by making localhost a real host (and thus show up in list_hosts())
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hosts = CLI.get_host_list(inventory, self.options.subset)
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# flush fact cache if requested
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if self.options.flush_cache:
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self._flush_cache(inventory, variable_manager)
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# create the playbook executor, which manages running the plays via a task queue manager
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pbex = PlaybookExecutor(playbooks=self.args, inventory=inventory, variable_manager=variable_manager, loader=loader, options=self.options,
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passwords=passwords)
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results = pbex.run()
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if isinstance(results, list):
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for p in results:
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display.display('\nplaybook: %s' % p['playbook'])
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for idx, play in enumerate(p['plays']):
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if play._included_path is not None:
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loader.set_basedir(play._included_path)
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else:
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pb_dir = os.path.realpath(os.path.dirname(p['playbook']))
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loader.set_basedir(pb_dir)
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msg = "\n play #%d (%s): %s" % (idx + 1, ','.join(play.hosts), play.name)
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mytags = set(play.tags)
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msg += '\tTAGS: [%s]' % (','.join(mytags))
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if self.options.listhosts:
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playhosts = set(inventory.get_hosts(play.hosts))
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msg += "\n pattern: %s\n hosts (%d):" % (play.hosts, len(playhosts))
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for host in playhosts:
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msg += "\n %s" % host
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display.display(msg)
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all_tags = set()
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if self.options.listtags or self.options.listtasks:
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taskmsg = ''
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if self.options.listtasks:
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taskmsg = ' tasks:\n'
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def _process_block(b):
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taskmsg = ''
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for task in b.block:
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if isinstance(task, Block):
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taskmsg += _process_block(task)
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else:
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if task.action == 'meta':
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continue
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all_tags.update(task.tags)
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if self.options.listtasks:
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cur_tags = list(mytags.union(set(task.tags)))
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cur_tags.sort()
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if task.name:
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taskmsg += " %s" % task.get_name()
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else:
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taskmsg += " %s" % task.action
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taskmsg += "\tTAGS: [%s]\n" % ', '.join(cur_tags)
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return taskmsg
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all_vars = variable_manager.get_vars(play=play)
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play_context = PlayContext(play=play, options=self.options)
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for block in play.compile():
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block = block.filter_tagged_tasks(play_context, all_vars)
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if not block.has_tasks():
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continue
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taskmsg += _process_block(block)
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if self.options.listtags:
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cur_tags = list(mytags.union(all_tags))
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cur_tags.sort()
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taskmsg += " TASK TAGS: [%s]\n" % ', '.join(cur_tags)
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display.display(taskmsg)
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return 0
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else:
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return results
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def _flush_cache(self, inventory, variable_manager):
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for host in inventory.list_hosts():
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hostname = host.get_name()
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variable_manager.clear_facts(hostname)
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