ACR image retention

Subin Sabu 0

Hi, is there a way to impose a retention policy on ACR, specifically for a repo? I want images older than 7 days to be gone.
Thanks.

Udayashankar K.N 80 Reputation points Microsoft Employee

2025-01-08T12:05:48.0433333+00:00

You can use the following ACR has a retention policy setting which might be of help to you

https://learn.microsoft.com/en-us/azure/container-registry/container-registry-retention-policy
Udayashankar K.N 80 Reputation points Microsoft Employee

2025-01-08T12:06:17.54+00:00

https://learn.microsoft.com/en-us/azure/container-registry/container-registry-retention-policy

ACR Retention policy is also possible .
Srinud 3,480 Reputation points Microsoft Vendor

2025-01-08T18:28:13.01+00:00

Hi Subin Sabu,
Thank you for reaching out to us on the Microsoft Q&A forum.
In addition to the Udayashankar K.N, the retention policy for untagged manifests is currently available as a preview feature in Premium tier container registries.
For more details on registry service tiers, please refer below document: https://learn.microsoft.com/en-us/azure/container-registry/container-registry-skus

If the information is helpful, please consider by clicking the "Upvote" on the post.

If you have any further queries, please let us know in the comment. We are glad to help you.
Subin Sabu 0 Reputation points

2025-01-09T05:35:00.2333333+00:00

Thanks for the replies, @Udayashankar K.N and @Srinud . Our ACR is in standard tier so is there any other options to impose retention policy. And even if our ACR in in premium tier, how can I untag the images, by default ACR doesn't do that.

1 answer

Srinud 3,480 Reputation points Microsoft Vendor

2025-01-09T17:26:24.8433333+00:00

Hi Subin Sabu,
Thank you for reaching us and sharing further information.
As per your requirement, we would like to inform you that the SKU is standard and does not have a retention policy. To delete images in the standard SKU, this must be done manually. For the premium SKU, you need to untag the images using the az acr command, as per your response, and then apply the retention policy to delete the untagged images. Below is the command for untagging the image.

az acr repository untag --name <ACR_NAME> --image <IMAGE_NAME:TAG>

Please find the below document for more information: https://learn.microsoft.com/en-us/cli/azure/acr/repository?view=azure-cli-latest#az-acr-repository-untag
https://learn.microsoft.com/en-us/azure/container-registry/container-registry-delete#delete-by-tag
If the information is helpful, please consider by clicking the "Upvote" on the post.
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1 person found this answer helpful.
Sai Krishna Katakam 1,680 Reputation points Microsoft Vendor

2025-01-13T05:27:56.5066667+00:00

Hi Subin Sabu,

I Hope you are doing well!!

I just wanted to check if you had a chance to review answer. If you found it helpful, could you kindly click the “Accept Answer” on my post. This will help increase its visibility of this question for other members of the Microsoft Q&A community. Thank you for your contribution in enhancing Microsoft Q&A!
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ACR image retention

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