def get_plugin(entry_point):
"""Returns correct plugin instance for given entry point."""
plugs = plugins.get_playbook_plugins()
plugin = plugs.get(entry_point)
if not plugin:
raise exceptions.InventoryError("Unknown plugin for {0}", entry_point)
return plugin()
def get_entrypoint():
"""Returns entry point of the plugin.
It fetches environment variables to do that. All environment
variables must be defined.
"""
entry_point = os.getenv(process.ENV_ENTRY_POINT)
LOG.debug("Entrypoint: %s", entry_point)
if not entry_point:
raise exceptions.InventoryError("Unknown entrypoint")
return entry_point
def main():
"""Main function."""
options = get_options()
LOG.debug("Options are %s", options)
entry_point = get_entrypoint()
plugin = get_plugin(entry_point)
inventory = plugin.get_dynamic_inventory()
if options.list:
dumps(inventory)
elif options.host in inventory["_meta"]["hostvars"]:
dumps(inventory["_meta"]["hostvars"][options.host])
else:
raise exceptions.InventoryError("Cannot find required host {0}".format(
options.host))
return os.EX_OK