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community.general/lib/ansible/inventory/dir.py
2013-06-04 21:06:49 -07:00

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Python

# (c) 2013, Daniel Hokka Zakrisson <daniel@hozac.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 ansible.constants as C
from ansible.inventory.host import Host
from ansible.inventory.group import Group
from ansible.inventory.ini import InventoryParser
from ansible.inventory.script import InventoryScript
from ansible import utils
from ansible import errors
class InventoryDirectory(object):
''' Host inventory parser for ansible using a directory of inventories. '''
def __init__(self, filename=C.DEFAULT_HOST_LIST):
self.names = os.listdir(filename)
self.names.sort()
self.directory = filename
self.parsers = []
self.hosts = {}
self.groups = {}
for i in self.names:
if i.endswith("~") or i.endswith(".orig") or i.endswith(".bak"):
continue
if i.endswith(".ini"):
# configuration file for an inventory script
continue
if i.endswith(".retry"):
# this file is generated on a failed playbook and should only be
# used when run specifically
continue
# Skip hidden files
if i.startswith('.') and not i.startswith('./'):
continue
# These are things inside of an inventory basedir
if i in ("host_vars", "group_vars", "vars_plugins"):
continue
fullpath = os.path.join(self.directory, i)
if os.path.isdir(fullpath):
parser = InventoryDirectory(filename=fullpath)
elif utils.is_executable(fullpath):
parser = InventoryScript(filename=fullpath)
else:
parser = InventoryParser(filename=fullpath)
self.parsers.append(parser)
# This takes a lot of code because we can't directly use any of the objects, as they have to blend
for name, group in parser.groups.iteritems():
if name not in self.groups:
self.groups[name] = group
else:
# group is already there, copy variables
# note: depth numbers on duplicates may be bogus
for k, v in group.get_variables().iteritems():
self.groups[name].set_variable(k, v)
for host in group.get_hosts():
if host.name not in self.hosts:
self.hosts[host.name] = host
else:
# host is already there, copy variables
# note: depth numbers on duplicates may be bogus
for k, v in host.vars.iteritems():
self.hosts[host.name].set_variable(k, v)
self.groups[name].add_host(self.hosts[host.name])
# This needs to be a second loop to ensure all the parent groups exist
for name, group in parser.groups.iteritems():
for ancestor in group.get_ancestors():
self.groups[ancestor.name].add_child_group(self.groups[name])
def get_host_variables(self, host):
""" Gets additional host variables from all inventories """
vars = {}
for i in self.parsers:
vars.update(i.get_host_variables(host))
return vars