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# Copyright (c) 2019 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 = '''
name: test
plugin_type: inventory
short_description: test inventory source
extends_documentation_fragment:
- inventory_cache
'''
from ansible.plugins.inventory import BaseInventoryPlugin, Cacheable
class InventoryModule(BaseInventoryPlugin, Cacheable):
NAME = 'test'
def populate(self, hosts):
for host in list(hosts.keys()):
self.inventory.add_host(host, group='all')
for hostvar, hostval in hosts[host].items():
self.inventory.set_variable(host, hostvar, hostval)
def get_hosts(self):
return {'host1': {'one': 'two'}, 'host2': {'three': 'four'}}
def parse(self, inventory, loader, path, cache=True):
super(InventoryModule, self).parse(inventory, loader, path)
self.load_cache_plugin()
cache_key = self.get_cache_key(path)
# cache may be True or False at this point to indicate if the inventory is being refreshed
# get the user's cache option
cache_setting = self.get_option('cache')
attempt_to_read_cache = cache_setting and cache
cache_needs_update = cache_setting and not cache
# attempt to read the cache if inventory isn't being refreshed and the user has caching enabled
if attempt_to_read_cache:
try:
results = self._cache[cache_key]
except KeyError:
# This occurs if the cache_key is not in the cache or if the cache_key expired, so the cache needs to be updated
cache_needs_update = True
if cache_needs_update:
results = self.get_hosts()
# set the cache
self._cache[cache_key] = results
self.populate(results)
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