Binder behind outbound proxy

Binder
#1

We need to run a binderhub behind an outbound proxy.
To get this to work, my idea is to pass PROXY_* env vars to the build pod.
Currently env vars set in the values.yaml for binder do not propagate to the build pod.

Would that be something for a PR?

If yes:
What do you think would be best?

  • Pass all environment variables from os.environ to the new pod
  • Just pass the PROXY_* vars
  • Somehow get the vars from extraEnv and pass them.

Edit: Not sure if the env propagating will help. The crucial thing which made it work in my case, was to inject a .docker/config.json containing the proxy vars into the build pod (the one spawned in build.py)

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#2

This issue has come up before:

Thereā€™s an open PR but it only deals with the Binderhub side, another one may be needed on the repo2docker side.

Itā€™d be good to get your feedback on that issue, especially with regards to whether itā€™d work for you, and whether you think there are other implementations that should be considered.

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#3

Thx! Just commented on the PR

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#4

I now provided all infos about my solution in the PR.
What do you think: Should I open a new PR? Should I commit to the current PR?
As mentioned in the PR: There are 2 approaches:

  • create a config_map via python api
  • create a config_map in a helm template

Which approach would you prefer? Or do you see a different solution?

#5

Filed a follow up PR for binderhub:

@betatim I tested this PR together with

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