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community.general/bin/ansible
Serge van Ginderachter f6a55a3552 Refactor vars_plugins (host/group_vars)
Split out parsing of vars files to per host and per group
parsing, instead of reparsing all groups for each host. This enhances
performance.

Extend vars_plugins' API with two new methods:
* get host variables: only parses host_vars
* get group variables: only parses group_vars for specific group
The initial run method is still used for backward compatibility.

Parse all vars_plugins at inventory initialisation, instead of
per host when touched first by runner. Here we can also loop through
all groups once easily, then parse them.
This also centralizes all parsing in the inventory constructor.

	modified:   bin/ansible
	modified:   bin/ansible-playbook
	modified:   lib/ansible/inventory/__init__.py
	modified:   lib/ansible/inventory/vars_plugins/group_vars.py
2014-03-25 22:12:01 +01:00

231 lines
8.2 KiB
Python
Executable file

#!/usr/bin/env python
# (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/>.
########################################################
import os
import sys
from ansible.runner import Runner
import ansible.constants as C
from ansible import utils
from ansible import errors
from ansible import callbacks
from ansible import inventory
########################################################
class Cli(object):
''' code behind bin/ansible '''
# ----------------------------------------------
def __init__(self):
self.stats = callbacks.AggregateStats()
self.callbacks = callbacks.CliRunnerCallbacks()
# ----------------------------------------------
def parse(self):
''' create an options parser for bin/ansible '''
parser = utils.base_parser(
constants=C,
runas_opts=True,
subset_opts=True,
async_opts=True,
output_opts=True,
connect_opts=True,
check_opts=True,
diff_opts=False,
usage='%prog <host-pattern> [options]'
)
parser.add_option('-a', '--args', dest='module_args',
help="module arguments", default=C.DEFAULT_MODULE_ARGS)
parser.add_option('-m', '--module-name', dest='module_name',
help="module name to execute (default=%s)" % C.DEFAULT_MODULE_NAME,
default=C.DEFAULT_MODULE_NAME)
options, args = parser.parse_args()
self.callbacks.options = options
if len(args) == 0 or len(args) > 1:
parser.print_help()
sys.exit(1)
# 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")
return (options, args)
# ----------------------------------------------
def run(self, options, args):
''' use Runner lib to do SSH things '''
pattern = args[0]
"""
inventory_manager = inventory.Inventory(options.inventory)
if options.subset:
inventory_manager.subset(options.subset)
hosts = inventory_manager.list_hosts(pattern)
if len(hosts) == 0:
callbacks.display("No hosts matched")
sys.exit(0)
if options.listhosts:
for host in hosts:
callbacks.display(' %s' % host)
sys.exit(0)
if ((options.module_name == 'command' or options.module_name == 'shell')
and not options.module_args):
callbacks.display("No argument passed to %s module" % options.module_name, color='red', stderr=True)
sys.exit(1)
"""
sshpass = None
sudopass = None
su_pass = None
vault_pass = None
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
options.ask_vault_pass = options.ask_vault_pass or C.DEFAULT_ASK_VAULT_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)
# read vault_pass from a file
if options.vault_password_file:
this_path = os.path.expanduser(options.vault_password_file)
try:
f = open(this_path, "rb")
tmp_vault_pass=f.read().strip()
f.close()
except (OSError, IOError), e:
raise errors.AnsibleError("Could not read %s: %s" % (this_path, e))
if not options.ask_vault_pass:
vault_pass = tmp_vault_pass
inventory_manager = inventory.Inventory(options.inventory, vault_password=vault_pass)
if options.subset:
inventory_manager.subset(options.subset)
hosts = inventory_manager.list_hosts(pattern)
if len(hosts) == 0:
callbacks.display("No hosts matched")
sys.exit(0)
if options.listhosts:
for host in hosts:
callbacks.display(' %s' % host)
sys.exit(0)
if ((options.module_name == 'command' or options.module_name == 'shell')
and not options.module_args):
callbacks.display("No argument passed to %s module" % options.module_name, color='red', stderr=True)
sys.exit(1)
if options.su_user or options.ask_su_pass:
options.su = True
options.sudo_user = options.sudo_user or C.DEFAULT_SUDO_USER
options.su_user = options.su_user or C.DEFAULT_SU_USER
if options.tree:
utils.prepare_writeable_dir(options.tree)
runner = Runner(
module_name=options.module_name,
module_path=options.module_path,
module_args=options.module_args,
remote_user=options.remote_user,
remote_pass=sshpass,
inventory=inventory_manager,
timeout=options.timeout,
private_key_file=options.private_key_file,
forks=options.forks,
pattern=pattern,
callbacks=self.callbacks,
sudo=options.sudo,
sudo_pass=sudopass,
sudo_user=options.sudo_user,
transport=options.connection,
subset=options.subset,
check=options.check,
diff=options.check,
su=options.su,
su_pass=su_pass,
su_user=options.su_user,
vault_pass=vault_pass
)
if options.seconds:
callbacks.display("background launch...\n\n", color='cyan')
results, poller = runner.run_async(options.seconds)
results = self.poll_while_needed(poller, options)
else:
results = runner.run()
return (runner, results)
# ----------------------------------------------
def poll_while_needed(self, poller, options):
''' summarize results from Runner '''
# BACKGROUND POLL LOGIC when -B and -P are specified
if options.seconds and options.poll_interval > 0:
poller.wait(options.seconds, options.poll_interval)
return poller.results
########################################################
if __name__ == '__main__':
callbacks.display("", log_only=True)
callbacks.display(" ".join(sys.argv), log_only=True)
callbacks.display("", log_only=True)
cli = Cli()
(options, args) = cli.parse()
try:
(runner, results) = cli.run(options, args)
for result in results['contacted'].values():
if 'failed' in result or result.get('rc', 0) != 0:
sys.exit(2)
if results['dark']:
sys.exit(3)
except errors.AnsibleError, e:
# Generic handler for ansible specific errors
callbacks.display("ERROR: %s" % str(e), stderr=True, color='red')
sys.exit(1)