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# Copyright (c) 2018 Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = '''
inventory: statichost
short_description: Add a single host
description: Add a single host
extends_documentation_fragment:
- inventory_cache
options:
plugin:
description: plugin name (must be statichost)
required: true
hostname:
description: Toggle display of stderr even when script was successful
required: True
'''
from ansible.errors import AnsibleParserError
from ansible.plugins.inventory import BaseInventoryPlugin, Cacheable
class InventoryModule(BaseInventoryPlugin, Cacheable):
NAME = 'testns.content_adj.statichost'
def __init__(self):
super(InventoryModule, self).__init__()
self._hosts = set()
def verify_file(self, path):
''' Verify if file is usable by this plugin, base does minimal accessibility check '''
if not path.endswith('.statichost.yml') and not path.endswith('.statichost.yaml'):
return False
return super(InventoryModule, self).verify_file(path)
def parse(self, inventory, loader, path, cache=None):
super(InventoryModule, self).parse(inventory, loader, path)
# Initialize and validate options
self._read_config_data(path)
# Exercise cache
cache_key = self.get_cache_key(path)
attempt_to_read_cache = self.get_option('cache') and cache
cache_needs_update = self.get_option('cache') and not cache
if attempt_to_read_cache:
try:
host_to_add = self._cache[cache_key]
except KeyError:
cache_needs_update = True
if not attempt_to_read_cache or cache_needs_update:
host_to_add = self.get_option('hostname')
# this is where the magic happens
self.inventory.add_host(host_to_add, 'all')
self._cache[cache_key] = host_to_add
# self.inventory.add_group()...
# self.inventory.add_child()...
# self.inventory.set_variable()..
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