helper fn to add az secrets to container

[rakelkar]

Resolve #953 by adding a helper function to create environment variables based on the azure secret created during setup in kubeflow/kubeflow#2676

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[k8s-ci-robot]

Hi @rakelkar. Thanks for your PR.

I'm waiting for a kubeflow member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[rakelkar]

I signed it!

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[rakelkar]

I signed it!

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[aronchick]

/assign @jlewi

[hongye-sun]

/lgtm

thanks for the contribution.

[Ark-kun]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Ark-kun

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