Bases: cinder.scheduler.filters.BaseHostFilter
Host Filter to allow simple JSON-based grammar for selecting hosts.
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commands = {'and': <function _and at 0xd72bc08>, 'or': <function _or at 0xd72bc80>, '>=': <function _greater_than_equal at 0xd72bd70>, 'in': <function _in at 0xd72be60>, 'not': <function _not at 0xd72bcf8>, '<=': <function _less_than_equal at 0xd72bde8>, '=': <function _equals at 0xd72bb90>, '<': <function _less_than at 0xd72ba28>, '>': <function _greater_than at 0xd72bed8>}
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host_passes(host_state, filter_properties)
Return a list of hosts that can fulfill query requirements.