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# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import stat
from ansible import context
from ansible.cli import CLI
from ansible.errors import AnsibleError, AnsibleOptionsError
from ansible.executor.playbook_executor import PlaybookExecutor
from ansible.playbook.block import Block
from ansible.playbook.play_context import PlayContext
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. '''
def init_parser(self):
# create parser for CLI options
super(PlaybookCLI, self).init_parser(
usage="%prog [options] playbook.yml [playbook2 ...]",
connect_opts=True,
meta_opts=True,
runas_opts=True,
subset_opts=True,
check_opts=True,
inventory_opts=True,
runtask_opts=True,
vault_opts=True,
fork_opts=True,
module_opts=True,
desc="Runs Ansible playbooks, executing the defined tasks on the targeted hosts.",
)
# ansible playbook specific opts
self.parser.add_option('--list-tasks', dest='listtasks', action='store_true',
help="list all tasks that would be executed")
self.parser.add_option('--list-tags', dest='listtags', action='store_true',
help="list all available tags")
self.parser.add_option('--step', dest='step', action='store_true',
help="one-step-at-a-time: confirm each task before running")
self.parser.add_option('--start-at-task', dest='start_at_task',
help="start the playbook at the task matching this name")
return self.parser
def post_process_args(self, options, args):
options, args = super(PlaybookCLI, self).post_process_args(options, args)
if len(args) == 0:
raise AnsibleOptionsError("You must specify a playbook file to run")
display.verbosity = options.verbosity
self.validate_conflicts(options, runas_opts=True, vault_opts=True, fork_opts=True)
options = self.normalize_become_options(options)
return options, args
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
for playbook in context.CLIARGS['args']:
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)
# 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}
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())
hosts = super(PlaybookCLI, self).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)
msg = "\n play #%d (%s): %s" % (idx + 1, ','.join(play.hosts), 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 == 'meta':
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)
play_context = PlayContext(play=play)
for block in play.compile():
block = block.filter_tagged_tasks(play_context, 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
def _flush_cache(self, inventory, variable_manager):
for host in inventory.list_hosts():
hostname = host.get_name()
variable_manager.clear_facts(hostname)
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