[Feature] Introduce default function for Helm additionalWorkerGroups containerEnv in ray-cluster helm chart

[TessaIO]

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• I had searched in the issues and found no similar feature requirement.

Description

When deploying this Helm chart using Terraform, we should set an empty list for the containerEnv on the additionalWorkerGroups level. While it's possible to do it using Terraform set_list, it will actually insert an empty string in the array, and the expected format should be an object.
To avoid this chain of problems, it would be nice to wrap containerEnv with a default function that returns an empty array.

Use case

We are deploying ray-cluster Helm chart using Terraform and specifying additionalWorkerGroups without specifying any containerEnv.

Related issues

No response

Are you willing to submit a PR?

• Yes I am willing to submit a PR!