Release candidate : v1.90.0

[sudheer-quad]

Release candidate : v1.90.0

Submission Checklist

NOTE: Community submissions can take up to 2 weeks to be reviewed.

Please take the following actions before submitting this pull request.

• Fork your PR branch from the Toolkit "develop" branch (not main)
• Test all changes with pre-commit in a local branch #
• Confirm that "make tests" passes all tests
• 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 #

[gemini-code-assist]

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 introduces a comprehensive suite of job management capabilities to the Cluster Toolkit CLI. By adding the 'job' and 'cluster' command groups, users can now interact directly with GKE workloads, including submitting jobs with on-the-fly image building, managing job lifecycles, and introspecting cluster resources. The changes also include robust automated prerequisite validation to improve the user experience during job submission, along with necessary infrastructure updates to support these new features.

Highlights

• New Job Management Commands: Added a new 'job' command group to the CLI, enabling users to submit, list, cancel, and fetch logs for workloads on GKE clusters.
• Automated Prerequisite Checks: Implemented an automated prerequisite check system for job submission that verifies required tools (gcloud, kubectl, auth plugins) and generates remediation scripts if dependencies are missing.
• On-the-fly Image Building: Integrated Crane to support building container images on-the-fly during job submission, allowing users to specify a base image and a build context directory.
• Cluster Management Enhancements: Added a 'cluster' command group to discover, list, and describe GKE clusters and storage volumes.
• Configuration Persistence: Introduced a configuration management system for job commands, allowing users to persistently set default project, cluster, and location settings.

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[gemini-code-assist]

Code Review

This pull request significantly expands the gcluster CLI by introducing comprehensive management commands for GKE clusters and jobs, including listing, describing, and submitting workloads. A major addition is the job submission workflow, which features on-the-fly image building via Crane, integration with Kueue for advanced scheduling, and support for Pathways jobs. The PR also includes automated infrastructure management for JobSet and Kueue, enhanced telemetry, and updated blueprints utilizing GCS Fuse Storage Profiles. Feedback recommends improving code robustness with explicit nil checks for the Kubernetes client, implementing cleanup for temporary manifest files, and refactoring command execution to support custom output streams instead of hardcoding standard output.