87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
# Copyright (c) 2018 Red Hat, Inc.
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# GNU General Public License v3.0+ (see COPYING.GPL or https://www.gnu.org/licenses/gpl-3.0.txt)
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import fnmatch
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import os
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from ansible.parsing.yaml.objects import AnsibleMapping
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from ansible.plugins.inventory import BaseFileInventoryPlugin
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DOCUMENTATION = '''
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inventory: yamlgroup
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version_added: "2.8"
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short_description: Simple group manipulation for existing hosts
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description:
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- YAML based inventory that only manipulates group membership for
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existing hosts.
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options:
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yaml_extensions:
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description: list of 'valid' extensions for files containing YAML
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type: list
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default: ['.yaml', '.yml', '.json']
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env:
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- name: ANSIBLE_YAML_FILENAME_EXT
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- name: ANSIBLE_INVENTORY_PLUGIN_EXTS
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ini:
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- key: yaml_valid_extensions
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section: defaults
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- section: inventory_plugin_yaml
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key: yaml_valid_extensions
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groups:
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description: dict with group name as key and list of fnmatch patterns
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type: dict
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default: {}
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'''
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EXAMPLES = '''
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plugin: yamlgroup
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groups:
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amazing:
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- fullhost.example.com
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- amazing*
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'''
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class InventoryModule(BaseFileInventoryPlugin):
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NAME = 'yamlgroup'
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def verify_file(self, path):
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valid = False
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if super(InventoryModule, self).verify_file(path):
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file_name, ext = os.path.splitext(path)
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if ext in self.get_option('yaml_extensions'):
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valid = True
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return valid
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def parse(self, inventory, loader, path, cache=True):
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''' parses the inventory file '''
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super(InventoryModule, self).parse(inventory, loader, path)
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self._read_config_data(path)
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groups = self.get_option('groups')
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found_groups = {}
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for group, hosts in groups.items():
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if not isinstance(hosts, list):
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hosts = [hosts]
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for candidate in hosts:
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# If someone accidentally puts a dict into the list of hosts,
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# the errors are ... obscure at best and the entire inventory
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# will fail. Grab the dict key in those cases rather than
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# failing.
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if isinstance(candidate, AnsibleMapping):
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candidate = list(candidate.keys())[0]
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for existing in self.inventory.hosts.values():
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if fnmatch.fnmatch(existing.get_name(), candidate):
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found_groups.setdefault(group, [])
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found_groups[group].append(existing)
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for group, hosts in found_groups.items():
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self.inventory.add_group(group)
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for host in hosts:
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self.inventory.add_child(group, host.get_name())
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