Add blog gep-0038-autoscaling-persistentvolumeclaims-with-pvc-autoscaler-v020

[rfranzke]

Purpose

@plkokanov This PR proposes a new blog post titled:

"GEP-0038: Autoscaling PersistentVolumeClaims with pvc-autoscaler v0.2.0"

The purpose of the blog post is to inform the community about new Gardener features or changes (2026-06-11).

Notes to Reviewers

This blog post was generated with AI assistance from the source material listed below.
Please evaluate whether this topic is suitable for a blog post. If so, review and edit the content as needed.
If you decide the topic isn't appropriate for a blog post, feel free to close this PR and delete the branch.

Source Material

• https://youtu.be/iX9tPbZOuPk
• https://github.com/gardener/pvc-autoscaler/releases/tag/v0.2.0
• Make it possible to target workload controllers in the PVCA API and resize multiple PVCs per one PVCA resource pvc-autoscaler#233
• Change scaleTargetRef to targetRef of type k8s.io/api/autoscaling/v1.CrossVersionObjectReference pvc-autoscaler#135
• Implement the .status.volumeRecommendations section of the API pvc-autoscaler#151

Instructions for Reviewers

❌ If the blog post isn't viable

• Close this PR
• Delete the branch

✏️ If the blog post is viable but requires editing

1. Clone the repository and change to the directory:

git clone https://github.com/gardener/documentation
cd documentation

2. Check out the branch:

git fetch origin && git checkout blog/2026-06-11-gep-0038-autoscaling-persistentvolumeclaims-with-pvc-autoscaler-v020

3. Review the content in website/blog/2026/06/06-11-gep-0038-autoscaling-persistentvolumeclaims-with-pvc-autoscaler-v020.md.
4. Make any necessary edits, additions, or removals, and then push the changes:

git add website/blog/2026/06/06-11-gep-0038-autoscaling-persistentvolumeclaims-with-pvc-autoscaler-v020.md
git commit --amend --no-edit
git push origin +blog/2026-06-11-gep-0038-autoscaling-persistentvolumeclaims-with-pvc-autoscaler-v020

✅ If the blog post is ready

• Invite additional reviewers (optional step)
• Comment with /lgtm to approve (required step)

The documentation team will review your PR, as required by branch protection.
They will merge it once you (and any additional reviewers) have approved it.

@plkokanov Thank you for contributing to the Gardener blog!

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[gardener-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign msohn for approval. For more information see the Code Review Process.

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[coderabbitai]

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• website/blog/2026/06/_index.md is excluded by !website/**

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch blog/2026-06-11-gep-0038-autoscaling-persistentvolumeclaims-with-pvc-autoscaler-v020

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