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 0x10fd3398>, 'or': <function _or at 0x10fd3320>, '>=': <function _greater_than_equal at 0x10fd3230>, 'in': <function _in at 0x10fd3140>, 'not': <function _not at 0x10fd32a8>, '<=': <function _less_than_equal at 0x10fd31b8>, '=': <function _equals at 0x10f37e60>, '<': <function _less_than at 0x10fd3050>, '>': <function _greater_than at 0x10fd30c8>}
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host_passes(host_state, filter_properties)
Return a list of hosts that can fulfill query requirements.