ansible/v2/bin/ansible-playbook

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#!/usr/bin/env python
import os
import stat
import sys
from ansible import constants as C
from ansible.errors import AnsibleError
from ansible.executor.playbook_executor import PlaybookExecutor
from ansible.inventory import Inventory
from ansible.parsing import DataLoader
from ansible.parsing.splitter import parse_kv
from ansible.playbook import Playbook
from ansible.playbook.task import Task
from ansible.utils.cli import base_parser
from ansible.utils.unicode import to_unicode
from ansible.utils.vars import combine_vars
from ansible.utils.vault import read_vault_file
from ansible.vars import VariableManager
# Implement an ansible.utils.warning() function later
warning = getattr(__builtins__, 'print')
#---------------------------------------------------------------------------------------------------
def main(args):
''' run ansible-playbook operations '''
# create parser for CLI options
parser = base_parser(
usage = "%prog playbook.yml",
connect_opts=True,
runas_opts=True,
subset_opts=True,
check_opts=True,
diff_opts=True
)
parser.add_option('--vault-password', dest="vault_password",
help="password for vault encrypted files")
parser.add_option('-e', '--extra-vars', dest="extra_vars", action="append",
help="set additional variables as key=value or YAML/JSON", default=[])
parser.add_option('-t', '--tags', dest='tags', default='all',
help="only run plays and tasks tagged with these values")
parser.add_option('--skip-tags', dest='skip_tags',
help="only run plays and tasks whose tags do not match these values")
parser.add_option('--syntax-check', dest='syntax', action='store_true',
help="perform a syntax check on the playbook, but do not execute it")
parser.add_option('--list-tasks', dest='listtasks', action='store_true',
help="list all tasks that would be executed")
parser.add_option('--step', dest='step', action='store_true',
help="one-step-at-a-time: confirm each task before running")
parser.add_option('--start-at-task', dest='start_at',
help="start the playbook at the task matching this name")
parser.add_option('--force-handlers', dest='force_handlers', action='store_true',
help="run handlers even if a task fails")
parser.add_option('--flush-cache', dest='flush_cache', action='store_true',
help="clear the fact cache")
options, args = parser.parse_args(args)
if len(args) == 0:
parser.print_help(file=sys.stderr)
return 1
vault_pass = None
if options.ask_vault_pass:
# FIXME: prompt here
pass
elif options.vault_password_file:
# read vault_pass from a file
vault_pass = read_vault_file(options.vault_password_file)
loader = DataLoader(vault_password=vault_pass)
extra_vars = {}
for extra_vars_opt in options.extra_vars:
extra_vars_opt = to_unicode(extra_vars_opt, errors='strict')
if extra_vars_opt.startswith(u"@"):
# Argument is a YAML file (JSON is a subset of YAML)
data = loader.load_from_file(extra_vars_opt[1:])
elif extra_vars_opt and extra_vars_opt[0] in u'[{':
# Arguments as YAML
data = loader.load(extra_vars_opt)
else:
# Arguments as Key-value
data = parse_kv(extra_vars_opt)
extra_vars = combine_vars(extra_vars, data)
# FIXME: this should be moved inside the playbook executor code
only_tags = options.tags.split(",")
skip_tags = options.skip_tags
if options.skip_tags is not None:
skip_tags = options.skip_tags.split(",")
# initial error check, to make sure all specified playbooks are accessible
# before we start running anything through the playbook executor
for playbook in 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)
# create the variable manager, which will be shared throughout
# the code, ensuring a consistent view of global variables
variable_manager = VariableManager()
variable_manager.set_extra_vars(extra_vars)
# create the inventory, and filter it based on the subset specified (if any)
inventory = Inventory(loader=loader, variable_manager=variable_manager, host_list=options.inventory)
variable_manager.set_inventory(inventory)
# Note: slightly wrong, this is written so that implicit localhost
# (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())
no_hosts = False
if len(inventory.list_hosts()) == 0:
# Empty inventory
warning("provided hosts list is empty, only localhost is available")
no_hosts = True
inventory.subset(options.subset)
if len(inventory.list_hosts()) == 0 and no_hosts is False:
# Invalid limit
raise errors.AnsibleError("Specified --limit does not match any hosts")
# create the playbook executor, which manages running the plays
# via a task queue manager
pbex = PlaybookExecutor(playbooks=args, inventory=inventory, variable_manager=variable_manager, loader=loader, options=options)
return pbex.run()
if __name__ == "__main__":
#display(" ", log_only=True)
#display(" ".join(sys.argv), log_only=True)
#display(" ", log_only=True)
try:
sys.exit(main(sys.argv[1:]))
except AnsibleError, e:
#display("ERROR: %s" % e, color='red', stderr=True)
print e
sys.exit(1)
except KeyboardInterrupt, ke:
#display("ERROR: interrupted", color='red', stderr=True)
print "keyboard interrupt"
sys.exit(1)