Access to v1container environment Variables

rbcq · December 22, 2023, 6:33pm

How can I access environment variables present in the single user container from another container created using extraContainers? More specifically JUPYTERHUB_USER. Thanks in advance.

manics · January 3, 2024, 11:25pm

Kubernetes only lets you set environment variables at the container level, not the pod level, so I don’t think you can do this using the standard Helm chart parameters (assuming you’re using Z2JH).

You could try defining your own modify_pod_hook?

github.com

jupyterhub/kubespawner/blob/269f51a694928ba6ea96b25bffa1544737104041/kubespawner/spawner.py#L986-L1006


      
          modify_pod_hook = Callable(
              None,
              allow_none=True,
              config=True,
              help="""
              Callable to augment the Pod object before launching.
          
              Expects a callable that takes two parameters:
          
                 1. The spawner object that is doing the spawning
                 2. The Pod object that is to be launched
          
              You should modify the Pod object and return it.
          
              This can be a coroutine if necessary. When set to none, no augmenting is done.
          
              This is very useful if you want to modify the pod being launched dynamically.
              Note that the spawner object can change between versions of KubeSpawner and JupyterHub,
              so be careful relying on this!
              """,
          )

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Access to v1container environment Variables

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