The nova.scheduler.filters.json_filter Module

class JsonFilter

Bases: nova.scheduler.filters.BaseHostFilter

Host Filter to allow simple JSON-based grammar for selecting hosts.

commands = {'and': <function _and at 0x7f4273b71488>, 'or': <function _or at 0x7f4273b71410>, '>=': <function _greater_than_equal at 0x7f4273b71320>, 'in': <function _in at 0x7f4273b71230>, 'not': <function _not at 0x7f4273b71398>, '<=': <function _less_than_equal at 0x7f4273b712a8>, '=': <function _equals at 0x7f4273b710c8>, '<': <function _less_than at 0x7f4273b71140>, '>': <function _greater_than at 0x7f4273b711b8>}
host_passes(host_state, spec_obj)

Return a list of hosts that can fulfill the requirements specified in the query.