#3541 new defect

CircleCI cannot find context "dockerhub-auth"

Reported by: sajith Owned by:
Priority: normal Milestone: undecided
Component: dev-infrastructure Version: n/a
Keywords: Cc:
Launchpad Bug:


In #3483, we added a "dockerhub-auth" context which holds DockerHub credentials to tahoe-lafs' CircleCI settings, in order to solve the problem imposed by DockerHub's impending rate limits. It turns out that having an organization-specific context will prevent CircleCI from running CI tasks for pull requests made by contributors who have chosen to fork tahoe-lafs repository at GitHub.

Here is an example CI run: https://app.circleci.com/pipelines/github/jaraco/tahoe-lafs/23/workflows/e2869d9c-43c7-4475-9aac-690826136eb7. All of those failed tasks have failed with the same "could not find context" error message.

This happens because the tahoe-lafs organization's CircleCI account has a "dockerhub-auth" context, but any other account that forked the repository won't have such a context, unless they add one at CircleCI. This is the source of those errors, and it could be pretty confusing.

A solution would be for the account that forked the repository to create a "dockerhub-auth" context (an empty context will do) under CircleCI's "organization settings".

An even better solution would be to adapt our CircleCI configuration such that it will continue to work even when a "dockerhub-auth" context is not present. In such cases, CI should continue to function, even if DockerHub rate-limits image pulls. This way new contributors won't need to have commit access to the "canonical" tahoe-lafs repository.

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