Tavasyag/helm diff

[tavasyag]

Rollback Plan

If a change needs to be reverted, we will publish an updated version of the library.

Description

This PR implements a new helm_diff data source that compares a proposed Helm chart configuration against the currently deployed release in a Kubernetes cluster.
New data source: data_helm_diff in helm/data_helm_diff.go

• Fetches current release state from Kubernetes cluster
• Renders proposed manifest based on provided configuration
• Compares manifests and generates unified diff output
• Returns: diff, diff_json, has_changes, current_manifest, proposed_manifest

Acceptance tests

• Have you added an acceptance test for the functionality being added?

Run acceptance tests:

make testacc TEST=./helm TESTARGS="-run TestAccDataDiff"

Release Note

Release note for CHANGELOG:

`data_source/helm_diff`: New data source to compare proposed chart configuration against deployed release

References

#1732

Community Note

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• If you are interested in working on this issue or have submitted a pull request, please leave a comment

[hashicorp-cla-app]

All committers have signed the CLA.

[hashicorp-cla-app]

Thank you for your submission! We require that all contributors sign our Contributor License Agreement ("CLA") before we can accept the contribution. Read and sign the agreement

Learn more about why HashiCorp requires a CLA and what the CLA includes

---

Tavasya Ganpati seems not to be a GitHub user.
You need a GitHub account to be able to sign the CLA.
If you have already a GitHub account, please add the email address used for this commit to your account.

_{Have you signed the CLA already but the status is still pending? Recheck it.}