Unable to push images to Azure Container Registry

Question

Hi there

We are having problems pubishing to an azure repository. The image isnt being updated/added

Publishing from visual studio shows no errors message and shows the publish has succeeded, but In azure the repository image has not updated.

Regards

Answer 1

Hi ,

Thanks for reaching out to Microsoft Q&A.

Check If the Image Exists Locally

Run the following command in the terminal (PowerShell or CMD) to check if the image exists:

docker images

Ensure the correct tag and repository name are assigned.

Verify the ACR Repository

Check your ACR in the Azure portal:

• Navigate to Container Registry > Your ACR > Repositories
• See if the image is listed or if it has an old timestamp.

Manually Push the Image to ACR

If the Visual Studio publish isn't working, try pushing manually:

Login to ACR

az acr login --name <your-acr-name>

Tag the Image Correctly

Ensure the image is tagged with the ACR name:

docker tag <local-image-name> <your-acr-name>.azurecr.io/<repository-name>:latest

Push the Image to ACR

docker push <your-acr-name>.azurecr.io/<repository-name>:latest

Check Visual Studio Docker Settings

• In Visual Studio, go to Publish Profile
• Ensure the correct Container Registry is selected
• Check if the image name and tag are correctly specified

Check for Cached Images

If an old image is being used, try forcing a new build and push:

docker build --no-cache -t <your-acr-name>.azurecr.io/<repository-name>:latest . docker push <your-acr-name>.azurecr.io/<repository-name>:latest

Ensure ACR Authentication Works

If authentication is an issue, try enabling Admin User in ACR settings:

• Go to Container Registry in Azure
• Select Access keys
• Enable Admin User

Then, use these credentials in Visual Studio or when running docker login:

docker login <your-acr-name>.azurecr.io -u <username> -p <password>

Check Azure DevOps Pipeline or ACR Tasks

If you're using CI/CD, check if there are any tasks overriding the published image.

Try these steps and let me know if the issue persists!

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