ansible/v2/bin/ansible-playbook

#!/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.vars import combine_vars
from ansible.vars import VariableManager

#---------------------------------------------------------------------------------------------------

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

    #---------------------------------------------------------------------------------------------------
    # FIXME: su/sudo stuff needs to be generalized
    # su and sudo command line arguments need to be mutually exclusive
    #if (options.su or options.su_user or options.ask_su_pass) and \
    #            (options.sudo or options.sudo_user or options.ask_sudo_pass):
    #        parser.error("Sudo arguments ('--sudo', '--sudo-user', and '--ask-sudo-pass') "
    #                     "and su arguments ('-su', '--su-user', and '--ask-su-pass') are "
    #                     "mutually exclusive")
    #
    #if (options.ask_vault_pass and options.vault_password_file):
    #        parser.error("--ask-vault-pass and --vault-password-file are mutually exclusive")
    #
    #sshpass = None
    #sudopass = None
    #su_pass = None
    #vault_pass = None
    #
    #options.ask_vault_pass = options.ask_vault_pass or C.DEFAULT_ASK_VAULT_PASS
    #
    #if options.listhosts or options.syntax or options.listtasks:
    #    (_, _, _, vault_pass) = utils.ask_passwords(ask_vault_pass=options.ask_vault_pass)
    #else:
    #    options.ask_pass = options.ask_pass or C.DEFAULT_ASK_PASS
    #    # Never ask for an SSH password when we run with local connection
    #    if options.connection == "local":
    #        options.ask_pass = False
    #    options.ask_sudo_pass = options.ask_sudo_pass or C.DEFAULT_ASK_SUDO_PASS
    #    options.ask_su_pass = options.ask_su_pass or C.DEFAULT_ASK_SU_PASS
    #    (sshpass, sudopass, su_pass, vault_pass) = utils.ask_passwords(ask_pass=options.ask_pass, ask_sudo_pass=options.ask_sudo_pass, ask_su_pass=options.ask_su_pass, ask_vault_pass=options.ask_vault_pass)
    #    options.sudo_user = options.sudo_user or C.DEFAULT_SUDO_USER
    #    options.su_user = options.su_user or C.DEFAULT_SU_USER
    #
    ## read vault_pass from a file
    #if not options.ask_vault_pass and options.vault_password_file:
    #    vault_pass = utils.read_vault_file(options.vault_password_file)
    # END FIXME 
    #---------------------------------------------------------------------------------------------------

    # FIXME: this hard-coded value will be removed after fixing the removed block
    #        above, which dealt wtih asking for passwords during runtime
    vault_pass = 'testing'
    loader = DataLoader(vault_password=vault_pass)

    extra_vars = {}
    for extra_vars_opt in options.extra_vars:
        if extra_vars_opt.startswith("@"):
            # Argument is a YAML file (JSON is a subset of YAML)
            data = loader.load_from_file(extra_vars_opt[1:])
            extra_vars = combine_vars(extra_vars, data)
        elif extra_vars_opt and extra_vars_opt[0] in '[{':
            # Arguments as YAML
            data = loader.load(extra_vars)
            extra_vars = combine_vars(extra_vars, data)
        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)
    inventory.subset(options.subset)
    if len(inventory.list_hosts()) == 0:
        raise AnsibleError("provided hosts list is empty")

    # 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)