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Psst... hey. You're reading the latest content, but it might be out of sync with code. You can read Nova 2011.2 docs or all OpenStack docs too.

The nova.scheduler.filters.json_filter Module

class JsonFilter

Bases: nova.scheduler.filters.BaseHostFilter

Host Filter to allow simple JSON-based grammar for selecting hosts.

commands = {'and': <function _and at 0xfdd09cc>, 'or': <function _or at 0xfdd0994>, '>=': <function _greater_than_equal at 0xfdd0924>, 'in': <function _in at 0xfdd08b4>, 'not': <function _not at 0xfdd095c>, '<=': <function _less_than_equal at 0xfdd08ec>, '=': <function _equals at 0xfdd080c>, '<': <function _less_than at 0xfdd0844>, '>': <function _greater_than at 0xfdd087c>}
host_passes(host_state, filter_properties)

Return a list of hosts that can fulfill the requirements specified in the query.