My container registry is using a lot of storage for for a small number of images. I wanna know the reason or detail.

Question

I uploaded several images. The local observation is less than 10G, but the Azure container registry statistics show that 40+G of space is used. I want to know what is occupying my storage.

Answer 1

Hi fun freechat,

Currently, your retention policy is disabled. When a retention policy is enabled, untagged manifests in the registry are automatically deleted after a number of days you set. This feature prevents the registry from filling up with artifacts that aren't needed and helps you save on storage costs. https://learn.microsoft.com/en-us/azure/container-registry/container-registry-retention-policy

If you are using the purge command, images by tag in a repository that match a name filter and that are older than a specified duration, by default, only tag references are deleted, not the underlying manifests and layer data. https://learn.microsoft.com/en-us/azure/container-registry/container-registry-auto-purge#use-the-purge-command

Please check commands once here

Please check below documentation for information which covers several methods for deleting image data: https://learn.microsoft.com/en-us/azure/container-registry/container-registry-delete

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