You have been subscribed to a public bug:
nova/scheduler/utils - parse_options() needs to do more sanity check.[1]
>>> from nova.scheduler import utils
>>> utils.parse_options(['a>=5', 'b>3'])
[('a>', '5')]
>>>
The default separator is '='. So '>' gets filtered out but '>=' gets
allowed. This is even worse as it pollutes the key for the config opt.
One possible solution is to apply a grammar compatibility, what can be
an accepted opt-name, like variable name in a language. for the
LeftHandSide of the opt expression, the way it applies 'converter' to
the RightHandSide.
reported version of nova
[suro@oxy-dev nova (master)]$ git log -1
commit 78db34c0b59cc04883e1ffa215313092c15ce7c8
[1] -
https://github.com/openstack/nova/blob/stable/liberty/nova/scheduler/utils.py#L222
** Affects: nova
Importance: Undecided
Assignee: Surojit Pathak (suro-patz)
Status: New
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nova scheduler utils parse_option needs more sanity check
https://bugs.launchpad.net/bugs/1523723
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