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105 lines
4.3 KiB
Python
105 lines
4.3 KiB
Python
# Copyright 2017 RedHat, inc
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#############################################
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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DOCUMENTATION = '''
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vars: host_group_vars
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version_added: "2.4"
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short_description: In charge of loading group_vars and host_vars
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description:
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- Loads YAML vars into corresponding groups/hosts in group_vars/ and host_vars/ directories.
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- Files are restricted by extension to one of .yaml, .json, .yml or no extension.
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- Hidden (starting with '.') and backup (ending with '~') files and directories are ignored.
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- Only applies to inventory sources that are existing paths.
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notes:
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- It takes the place of the previously hardcoded group_vars/host_vars loading.
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options:
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_valid_extensions:
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default: [".yml", ".yaml", ".json"]
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description:
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- "Check all of these extensions when looking for 'variable' files which should be YAML or JSON or vaulted versions of these."
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- 'This affects vars_files, include_vars, inventory and vars plugins among others.'
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env:
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- name: ANSIBLE_YAML_FILENAME_EXT
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ini:
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- section: yaml_valid_extensions
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key: defaults
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type: list
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'''
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import os
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from ansible import constants as C
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from ansible.errors import AnsibleParserError
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from ansible.module_utils._text import to_bytes, to_native, to_text
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from ansible.plugins.vars import BaseVarsPlugin
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from ansible.inventory.host import Host
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from ansible.inventory.group import Group
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from ansible.utils.vars import combine_vars
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FOUND = {}
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class VarsModule(BaseVarsPlugin):
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def get_vars(self, loader, path, entities, cache=True):
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''' parses the inventory file '''
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if not isinstance(entities, list):
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entities = [entities]
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super(VarsModule, self).get_vars(loader, path, entities)
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data = {}
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for entity in entities:
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if isinstance(entity, Host):
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subdir = 'host_vars'
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elif isinstance(entity, Group):
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subdir = 'group_vars'
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else:
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raise AnsibleParserError("Supplied entity must be Host or Group, got %s instead" % (type(entity)))
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# avoid 'chroot' type inventory hostnames /path/to/chroot
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if not entity.name.startswith(os.path.sep):
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try:
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found_files = []
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# load vars
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opath = os.path.realpath(os.path.join(self._basedir, subdir))
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key = '%s.%s' % (entity.name, opath)
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if cache and key in FOUND:
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found_files = FOUND[key]
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else:
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b_opath = to_bytes(opath)
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# no need to do much if path does not exist for basedir
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if os.path.exists(b_opath):
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if os.path.isdir(b_opath):
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self._display.debug("\tprocessing dir %s" % opath)
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found_files = loader.find_vars_files(opath, entity.name)
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FOUND[key] = found_files
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else:
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self._display.warning("Found %s that is not a directory, skipping: %s" % (subdir, opath))
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for found in found_files:
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new_data = loader.load_from_file(found, cache=True, unsafe=True)
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if new_data: # ignore empty files
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data = combine_vars(data, new_data)
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except Exception as e:
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raise AnsibleParserError(to_native(e))
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return data
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