My azure function app fails to pull a docker image from my private repository (despite presence of DOCKER_REGISTRY_SERVER_USERNAME and DOCKER_REGISTRY_SERVER_PASSWORD)

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My azure function app fails to pull a docker image from my private repository (despite presence of DOCKER_REGISTRY_SERVER_USERNAME and DOCKER_REGISTRY_SERVER_PASSWORD)

Leo Keogh 0

Hello,

My azure function app fails to pull a docker image from my private repository.

I have correctly added DOCKER_REGISTRY_SERVER_USERNAME and DOCKER_REGISTRY_SERVER_PASSWORD to Configuration Settings. I have also put the user/password in Deployment Center settings.

These credentials allow me to pull the image using command shell.

The logs in the Function App Deployment Center:

2023-02-15T13:08:28.512Z ERROR - Pulling docker image semarchy/xdm-purview-connector-internal:v1.0.0 failed: 2023-02-15T13:08:28.574Z ERROR - DockerApiException: Docker API responded with status code=NotFound, response={"message":"pull access denied for semarchy/xdm-purview-connector-internal, repository does not exist or may require 'docker login': denied: requested access to the resource is denied"}

Does the Function App need special docker hub credentials for image pull?

Any help with this would be much appreciated.

Thanks,

Leo Keogh.

Leo Keogh 0 Reputation points

2023-02-17T13:06:19.17+00:00

This problem has been partially resolved by choosing Docker Hub as Registry source + Private Repository Access

so there is no Application Settings user/password property for this case (unlike DOCKER_REGISTRY_SERVER_USERNAME and DOCKER_REGISTRY_SERVER_PASSWORD)

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Leo Keogh 0 Reputation points

2023-02-17T13:06:19.17+00:00

This problem has been partially resolved by choosing Docker Hub as Registry source + Private Repository Access

so there is no Application Settings user/password property for this case (unlike DOCKER_REGISTRY_SERVER_USERNAME and DOCKER_REGISTRY_SERVER_PASSWORD)

Answer 1

MikeUrnun 9,777 Moderator

Hello @Leo Keogh - The doc states the following on publishing to a private registry:
User's image

And the Pull should occur automatically after the detection of a newer image on the registry. Is the issue you're facing the same authentication not working when pulling? If so, please try running the following after the creation of the private image:

az webapp config container set -n <functioname> -g <resourcegroup> -c <yourCONTAINER_PATH> -r <registry_URL> -u <username> -p <password>

Leo Keogh 0 Reputation points

2023-02-23T08:57:43.9+00:00

Hi @MikeUrnun

Thanks for getting back to me. I've managed to resolve the login issue by creating and using a Docker Personal Access Token (before I was trying to use my email+password).
My problem is that my image is not in a private registry, it's in a private DockerHub repository, so I have to manually configure deployment via the UI (Azure function app's Deployment Center).

In order to deploy the Azure function completely via script, I would need an Application Setting for private DockerHub repository authent, something like DOCKER_REPOSITORY_USERNAME and DOCKER_REPOSITORY_PASSWORD
Leo Keogh 0 Reputation points

2023-02-23T08:59:19.78+00:00

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My azure function app fails to pull a docker image from my private repository (despite presence of DOCKER_REGISTRY_SERVER_USERNAME and DOCKER_REGISTRY_SERVER_PASSWORD)

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