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Edit File: playbook.py
#!/usr/bin/env python # (c) 2012, Michael DeHaan <michael.dehaan@gmail.com> # Copyright: (c) 2018, Ansible Project # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) # PYTHON_ARGCOMPLETE_OK from __future__ import (absolute_import, division, print_function) __metaclass__ = type # ansible.cli needs to be imported first, to ensure the source bin/* scripts run that code first from ansible.cli import CLI import os import stat from ansible import constants as C from ansible import context from ansible.cli.arguments import option_helpers as opt_help from ansible.errors import AnsibleError from ansible.executor.playbook_executor import PlaybookExecutor from ansible.module_utils._text import to_bytes from ansible.playbook.block import Block from ansible.plugins.loader import add_all_plugin_dirs from ansible.utils.collection_loader import AnsibleCollectionConfig from ansible.utils.collection_loader._collection_finder import _get_collection_name_from_path, _get_collection_playbook_path from ansible.utils.display import Display display = Display() class PlaybookCLI(CLI): ''' the tool to run *Ansible playbooks*, which are a configuration and multinode deployment system. See the project home page (https://docs.ansible.com) for more information. ''' name = 'ansible-playbook' def init_parser(self): # create parser for CLI options super(PlaybookCLI, self).init_parser( usage="%prog [options] playbook.yml [playbook2 ...]", desc="Runs Ansible playbooks, executing the defined tasks on the targeted hosts.") opt_help.add_connect_options(self.parser) opt_help.add_meta_options(self.parser) opt_help.add_runas_options(self.parser) opt_help.add_subset_options(self.parser) opt_help.add_check_options(self.parser) opt_help.add_inventory_options(self.parser) opt_help.add_runtask_options(self.parser) opt_help.add_vault_options(self.parser) opt_help.add_fork_options(self.parser) opt_help.add_module_options(self.parser) # ansible playbook specific opts self.parser.add_argument('--syntax-check', dest='syntax', action='store_true', help="perform a syntax check on the playbook, but do not execute it") self.parser.add_argument('--list-tasks', dest='listtasks', action='store_true', help="list all tasks that would be executed") self.parser.add_argument('--list-tags', dest='listtags', action='store_true', help="list all available tags") self.parser.add_argument('--step', dest='step', action='store_true', help="one-step-at-a-time: confirm each task before running") self.parser.add_argument('--start-at-task', dest='start_at_task', help="start the playbook at the task matching this name") self.parser.add_argument('args', help='Playbook(s)', metavar='playbook', nargs='+') def post_process_args(self, options): options = super(PlaybookCLI, self).post_process_args(options) display.verbosity = options.verbosity self.validate_conflicts(options, runas_opts=True, fork_opts=True) return options def run(self): super(PlaybookCLI, self).run() # Note: slightly wrong, this is written so that implicit localhost # manages passwords sshpass = None becomepass = None passwords = {} # initial error check, to make sure all specified playbooks are accessible # before we start running anything through the playbook executor # also prep plugin paths b_playbook_dirs = [] for playbook in context.CLIARGS['args']: # resolve if it is collection playbook with FQCN notation, if not, leaves unchanged resource = _get_collection_playbook_path(playbook) if resource is not None: playbook_collection = resource[2] else: # not an FQCN so must be a file if not os.path.exists(playbook): raise AnsibleError("the playbook: %s could not be found" % playbook) if not (os.path.isfile(playbook) or stat.S_ISFIFO(os.stat(playbook).st_mode)): raise AnsibleError("the playbook: %s does not appear to be a file" % playbook) # check if playbook is from collection (path can be passed directly) playbook_collection = _get_collection_name_from_path(playbook) # don't add collection playbooks to adjacency search path if not playbook_collection: # setup dirs to enable loading plugins from all playbooks in case they add callbacks/inventory/etc b_playbook_dir = os.path.dirname(os.path.abspath(to_bytes(playbook, errors='surrogate_or_strict'))) add_all_plugin_dirs(b_playbook_dir) b_playbook_dirs.append(b_playbook_dir) if b_playbook_dirs: # allow collections adjacent to these playbooks # we use list copy to avoid opening up 'adjacency' in the previous loop AnsibleCollectionConfig.playbook_paths = b_playbook_dirs # don't deal with privilege escalation or passwords when we don't need to if not (context.CLIARGS['listhosts'] or context.CLIARGS['listtasks'] or context.CLIARGS['listtags'] or context.CLIARGS['syntax']): (sshpass, becomepass) = self.ask_passwords() passwords = {'conn_pass': sshpass, 'become_pass': becomepass} # create base objects loader, inventory, variable_manager = self._play_prereqs() # (which is not returned in list_hosts()) is taken into account for # warning if inventory is empty. But it can't be taken into account for # checking if limit doesn't match any hosts. Instead we don't worry about # limit if only implicit localhost was in inventory to start with. # # Fix this when we rewrite inventory by making localhost a real host (and thus show up in list_hosts()) CLI.get_host_list(inventory, context.CLIARGS['subset']) # flush fact cache if requested if context.CLIARGS['flush_cache']: self._flush_cache(inventory, variable_manager) # create the playbook executor, which manages running the plays via a task queue manager pbex = PlaybookExecutor(playbooks=context.CLIARGS['args'], inventory=inventory, variable_manager=variable_manager, loader=loader, passwords=passwords) results = pbex.run() if isinstance(results, list): for p in results: display.display('\nplaybook: %s' % p['playbook']) for idx, play in enumerate(p['plays']): if play._included_path is not None: loader.set_basedir(play._included_path) else: pb_dir = os.path.realpath(os.path.dirname(p['playbook'])) loader.set_basedir(pb_dir) # show host list if we were able to template into a list try: host_list = ','.join(play.hosts) except TypeError: host_list = '' msg = "\n play #%d (%s): %s" % (idx + 1, host_list, play.name) mytags = set(play.tags) msg += '\tTAGS: [%s]' % (','.join(mytags)) if context.CLIARGS['listhosts']: playhosts = set(inventory.get_hosts(play.hosts)) msg += "\n pattern: %s\n hosts (%d):" % (play.hosts, len(playhosts)) for host in playhosts: msg += "\n %s" % host display.display(msg) all_tags = set() if context.CLIARGS['listtags'] or context.CLIARGS['listtasks']: taskmsg = '' if context.CLIARGS['listtasks']: taskmsg = ' tasks:\n' def _process_block(b): taskmsg = '' for task in b.block: if isinstance(task, Block): taskmsg += _process_block(task) else: if task.action in C._ACTION_META and task.implicit: continue all_tags.update(task.tags) if context.CLIARGS['listtasks']: cur_tags = list(mytags.union(set(task.tags))) cur_tags.sort() if task.name: taskmsg += " %s" % task.get_name() else: taskmsg += " %s" % task.action taskmsg += "\tTAGS: [%s]\n" % ', '.join(cur_tags) return taskmsg all_vars = variable_manager.get_vars(play=play) for block in play.compile(): block = block.filter_tagged_tasks(all_vars) if not block.has_tasks(): continue taskmsg += _process_block(block) if context.CLIARGS['listtags']: cur_tags = list(mytags.union(all_tags)) cur_tags.sort() taskmsg += " TASK TAGS: [%s]\n" % ', '.join(cur_tags) display.display(taskmsg) return 0 else: return results @staticmethod def _flush_cache(inventory, variable_manager): for host in inventory.list_hosts(): hostname = host.get_name() variable_manager.clear_facts(hostname) def main(args=None): PlaybookCLI.cli_executor(args) if __name__ == '__main__': main()