docker / docker/docker-py

Refresh authentication

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Dominant language
Python
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Description

Some registries (like Azure Container Registries) use a token authentication where the token needs to be refreshed every 3 hours. I have a long running process (Prefect Agent) that instantiates the APIClient at startup. The problem is that further down the road, the client attempts to .pull() an image, but it seems like it's still using the token from .docker/config.json at the time of instantiation.

Is there any way of setting a flag parameter on the .pull() method, or maybe is there a method on the client that could be implemented in order to refresh the authentication before attempting the pull?

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First steps

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  3. Fork the repository and make your change on a branch.
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Research direction

Start by tracing APIClient initialization and the .pull() path, focusing on how credentials from .docker/config.json are loaded and reused. Determine how token refresh should be triggered for long-running clients. Done means a client can pull after token expiry without requiring process restart, with coverage for the refresh behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
docker, python
Domain
api, authentication
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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