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adding new workload_identity_binding module.#5574

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arpit974 merged 4 commits into
GoogleCloudPlatform:developfrom
arpit974:workload-identity-binding-module
May 15, 2026
Merged

adding new workload_identity_binding module.#5574
arpit974 merged 4 commits into
GoogleCloudPlatform:developfrom
arpit974:workload-identity-binding-module

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@arpit974

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Adding a new module to create a Workload Identity binding between a Google Service Account (GSA) and a Kubernetes Service Account (KSA). It manages the service account IAM member role roles/iam.workloadIdentityUser with full project number pathing.

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  • Test all changes with pre-commit in a local branch #
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  • Add or modify unit tests to cover code changes
  • Ensure that unit test coverage remains above 80%
  • Update all applicable documentation
  • Follow Cluster Toolkit Contribution guidelines #

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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request adds a new infrastructure-as-code module designed to streamline the configuration of Workload Identity bindings. By automating the association between Google Service Accounts and Kubernetes Service Accounts, it simplifies the process of granting fine-grained access to GCP resources from within GKE workloads.

Highlights

  • New Module Addition: Introduced a new Terraform module 'workload_identity_binding' to facilitate IAM role assignments between Google Service Accounts and Kubernetes Service Accounts.
  • IAM Configuration: The module manages the 'roles/iam.workloadIdentityUser' role, enabling secure Workload Identity federation within GKE clusters.
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@arpit974 arpit974 added the release-new-modules Added to release notes under the "New Modules" heading. label Apr 29, 2026

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Code Review

This pull request introduces a new Terraform module for managing Workload Identity bindings between Google Service Accounts and Kubernetes Service Accounts. The feedback suggests refactoring the IAM member resource for better consistency and robustness, generalizing the default namespace variable, and relaxing the Terraform version constraint to avoid potential conflicts in larger deployments. Additionally, the module must be registered in the central modules index to comply with the repository style guide.

Comment thread modules/project/workload_identity_binding/main.tf Outdated
Comment thread modules/project/workload_identity_binding/variables.tf Outdated
Comment thread modules/project/workload_identity_binding/versions.tf
Comment thread modules/project/workload_identity_binding/README.md
@arpit974 arpit974 marked this pull request as ready for review April 29, 2026 12:51
@arpit974 arpit974 requested a review from a team as a code owner April 29, 2026 12:51
Comment thread modules/project/workload_identity_binding/outputs.tf Outdated
Comment thread modules/project/workload_identity_binding/variables.tf
@arpit974 arpit974 merged commit 74d1cff into GoogleCloudPlatform:develop May 15, 2026
13 of 79 checks passed
Thibaut-Nurit pushed a commit to Thibaut-Nurit/cluster-toolkit that referenced this pull request May 20, 2026
kadupoornima pushed a commit to kadupoornima/cluster-toolkit that referenced this pull request May 25, 2026
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