Bases: nova.scheduler.filters.BaseHostFilter
Host Filter to allow simple JSON-based grammar for
selecting hosts.
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commands = {'and': <function _and at 0xef56c80>, 'or': <function _or at 0xef56aa0>, '>=': <function _greater_than_equal at 0xef56de8>, 'in': <function _in at 0xf04a7d0>, 'not': <function _not at 0xef56c08>, '<=': <function _less_than_equal at 0xef56b90>, '=': <function _equals at 0xf04a668>, '<': <function _less_than at 0xf04a758>, '>': <function _greater_than at 0xf04a6e0>}
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host_passes(host_state, filter_properties)
Return a list of hosts that can fulfill the requirements
specified in the query.