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 0x100eb1b8>, 'or': <function _or at 0x100eb2a8>, '>=': <function _greater_than_equal at 0x100eb5f0>, 'in': <function _in at 0x100ebed8>, 'not': <function _not at 0x100eb6e0>, '<=': <function _less_than_equal at 0x100eb668>, '=': <function _equals at 0x100ebd70>, '<': <function _less_than at 0x100ebaa0>, '>': <function _greater_than at 0x100ebc80>}
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host_passes(host_state, filter_properties)
Return a list of hosts that can fulfill query requirements.