Jaeger query doesn't propagate auth token on dependency endpoint

[yoave23]

Describe the bug
Jaeger query doesn't propagate auth token on the /dependencies endpoint. Works fine others.
To Reproduce
Steps to reproduce the behavior:

1. Start jaeger-query with QUERY_BEARER_TOKEN_PROPAGATION=true
2. make a GET request to /dependencies?endTs=?????????&lookback=??????? with an authorization token
3. inspect jaeger-query request headers

Expected behavior
The dependency endpoint should propagate the auth token the same way it does on other endpoints (/operations, /traces, etc.)

Version (please complete the following information):

• OS: [macOS]
• Jaeger version: [1.8]
• Deployment: [Docker]

Additional context
We're using ES as storage although it seems that it affects all storage types
looks like the issue (for ES storage) is located here: plugin/storage/es/dependencystore/storage.go:84 where it uses the DependencyStore's context (Background context) instead of the original one

[objectiser]

@yoave23 Thanks for reporting this - would you be interested in submitting a PR?

[yoave23]

@objectiser sure, on it

[yoave23]

@objectiser it seems like we need to change the GetDependencies in storage/dependencystore/interface.go:32 in order to be able to use the real context. Does this sound like a valid approach? if not, would you mind recommending a different approach?

[objectiser]

@yoave23 Yes that is the right approach.

[objectiser]

@yoave23 Sorry should have realised earlier, but might be worth waiting for #2364 to merge (hopefully this week) - and then add your change on top?