openstack/nova
Code Issues Proposed changes

Explaining when a base image is considered unused to avoid confusion why some images aren't deleted.

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Change-Id: I624f15032d45c222318e630a1dd223ff16285a4e
This commit is contained in:
Olivier Chaze
2021-04-13 16:22:36 +02:00
parent fa59cde51f
commit 6bfa07b9d5
1 changed files with 8 additions and 1 deletions
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9
nova/conf/imagecache.py
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@@ -34,6 +34,8 @@ that manages a cluster (like vmwareapi.VMwareVCDriver) could result in
processing a large number of instances. Therefore you may need to adjust the processing a large number of instances. Therefore you may need to adjust the
time interval for the anticipated load, or only run on one nova-compute time interval for the anticipated load, or only run on one nova-compute
service within a shared storage aggregate. service within a shared storage aggregate.
Additional note, every time the image_cache_manager runs the timestamps
of images in ``[DEFAULT]/instances_path`` are updated.
Possible values: Possible values:
@@ -59,7 +61,12 @@ For per-compute-host cached images, set to '_base_$my_ip'
cfg.BoolOpt('remove_unused_base_images', cfg.BoolOpt('remove_unused_base_images',
default=True, default=True,
deprecated_group='DEFAULT', deprecated_group='DEFAULT',
help='Should unused base images be removed?'), help="""
Should unused base images be removed?
When there are no remaining instances on the hypervisor created from
this base image or linked to it, the base image is considered unused.
"""),
cfg.IntOpt('remove_unused_original_minimum_age_seconds', cfg.IntOpt('remove_unused_original_minimum_age_seconds',
default=(24 * 3600), default=(24 * 3600),
deprecated_group='DEFAULT', deprecated_group='DEFAULT',