Bases: cinder.openstack.common.scheduler.filters.BaseHostFilter
Host Filter to allow simple JSON-based grammar for
selecting hosts.
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commands = {'and': <function _and at 0xa9af230>, 'or': <function _or at 0xa9af1b8>, '>=': <function _greater_than_equal at 0xa9af0c8>, 'in': <function _in at 0xac85f50>, 'not': <function _not at 0xa9af140>, '<=': <function _less_than_equal at 0xa9af050>, '=': <function _equals at 0xac85de8>, '<': <function _less_than at 0xac85e60>, '>': <function _greater_than at 0xac85ed8>}
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host_passes(host_state, filter_properties)
Return a list of hosts that can fulfill the requirements
specified in the query.