Add retries to permission grant updates on Pulsar topics

[ckreiling]

Motivation

Currently I create a handful of permission grants per-topic using this Terraform provider.

Pulsar raises a BadVersionException when Terraform tries to create permission grants for multiple topics in the same namespace concurrently (see apache/pulsar#2952) - which results in the topic being created but not added to the TF state.

Thus on subsequent applies, I have to manually import topics due to code: 409 reason: This topic already exists, and re-apply my TF module a few times before all my desired changes are applied.

Modifications

Added a retry to the updatePermissionGrants operation in the Pulsar Topic resource as a workaround for Pulsar's undesirable behavior

Verifying this change

• Make sure that the change passes the CI checks.

This change is a trivial rework / code cleanup without any test coverage.

Documentation

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  no existing docs around when this TF provider retries operations

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[maxsxu]

Thanks for contributing!

[ckreiling]

@maxsxu Thanks for the merge! Do you have an estimate on when you'll cut a release published to the Terraform registry?

[maxsxu]

@maxsxu Thanks for the merge! Do you have an estimate on when you'll cut a release published to the Terraform registry?

@ckreiling We'll cut a new release next week, I'll keep you informed. Thanks for your attention!

[maxsxu]

Hi @ckreiling terraform-provider-pulsar v0.2.0 is released. See https://registry.terraform.io/providers/streamnative/pulsar/0.2.0