openstack
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cinder
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Merge "Added information how to use JsonFilter"

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Zuul 2019-09-02 22:49:19 +00:00 committed by Gerrit Code Review
parent 0023c2b58b e032855287
commit 2c3017ab26
1 changed files with 8 additions and 1 deletions
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9
cinder/scheduler/filters/json_filter.py
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@ -22,7 +22,14 @@ from cinder.scheduler import filters
class JsonFilter(filters.BaseBackendFilter):
"""Backend filter for simple JSON-based grammar for selecting backends."""
"""Backend filter for simple JSON-based grammar for selecting backends.
If you want to choose one of your backend,
make a query hint, for example:
cinder create --hint query='["=", "$backend_id", "rbd:vol@ceph#cloud"]'
"""
def _op_compare(self, args, op):
"""Compare first item of args with the rest using specified operator.