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 0x7f27f4fa91b8>, 'or': <function _or at 0x7f27f4fa90c8>, '>=': <function _greater_than_equal at 0x7f27f50b79b0>, 'in': <function _in at 0x7f27f50b7c80>, 'not': <function _not at 0x7f27f4fa9140>, '<=': <function _less_than_equal at 0x7f27f50b7c08>, '=': <function _equals at 0x7f27f50b7de8>, '<': <function _less_than at 0x7f27f50b7d70>, '>': <function _greater_than at 0x7f27f50b7cf8>}
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host_passes(host_state, filter_properties)
Return a list of hosts that can fulfill query requirements.