[WIP] Add blog post for PSI

[roycaihw]

Description

Ref:

• Support PSI based on cgroupv2 enhancements#4205
• PSI-based node conditions enhancements#5394

Issue

Closes: #

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[dipesh-rawat]

Hi @serathius @roycaihw 👋 v1.34 Communications team here,

@serathius as author of #51582, I'd like you to be a writing buddy for @roycaihw on this PR.

Please:

• Review this PR, paying attention to the guidelines and review hints
• Update your own PR based on any best practices you identify that should be applied
• Remember to be compassionate with your fellow article author

[aibarbetta]

/sig release

[dipesh-rawat]

Hi 👋, v1.34 Communications Team here again!

This blog originally aimed to cover two KEPs, but since one of them KEP-5394 has been removed from the v1.34 milestone (refer kubernetes/enhancements#5394 (comment)), only one KEP-4205 is currently in scope for this release.

@roycaihw, would you like to continue with this blog focusing solely on the KEP-4205 that made it into v1.34? Or would you prefer to close this PR if you feel there isn’t enough content to move forward?

Happy to support either way - just let us know what works best!
cc. @aibarbetta (v1.34 Comms Lead) to keep the team aligned.

[dipesh-rawat]

Hi @roycaihw 👋, v1.34 Communications Team here again!

Just a friendly reminder that we are approaching the feature blog "Ready for review" deadline: Friday 8th August 2025. We ask you to have the blog in non-draft state, and all write-up to be complete.

If you have any questions or need help, please don't hesitate to reach out to me or any of the Communications Team members. We are here to help you!