Cloudflare’s Workers Scheduler, AWS DBs on Vercel, and JIT Admin Access
Ship It Weekly - DevOps, SRE, Platform and Cloud Engineering News27 Joulu 2025

Cloudflare’s Workers Scheduler, AWS DBs on Vercel, and JIT Admin Access

This week on Ship It Weekly, Brian looks at real platform engineering in the wild.

We start with Cloudflare’s write-up on building an internal maintenance scheduler on Workers. It’s not marketing fluff. It’s “we hit memory limits, changed the model, and stopped pulling giant datasets into the runtime.”

Next up: AWS databases are now available inside the Vercel Marketplace. This is a quiet shift with loud consequences. Devs can click-button real AWS databases from the same place they deploy apps, and platform teams still own the guardrails: account sprawl, billing/tagging, audit trails, region choices, and networking posture.

Third story: TEAM (Temporary Elevated Access Management) for IAM Identity Center. Time-bound elevation with approvals, automatic expiry, and auditing. We cover how this fits alongside break-glass and why auto-expiry is the difference between least-privilege and privilege creep.

Lightning round: GitHub Actions workflow page performance improvements, Lambda Managed Instances (slightly cursed but interesting), a quick atmos tooling blip, and k8sdiagram.fun for explaining k8s to humans.

We close with Marc Brooker’s “What Now? Handling Errors in Large Systems” and the takeaway: error handling isn’t a local code decision, it’s architecture. Crashing vs retrying vs continuing only makes sense when you understand correlation and blast radius.

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Links from this episode

Cloudflare https://blog.cloudflare.com/building-our-maintenance-scheduler-on-workers/ AWS on Vercel https://aws.amazon.com/about-aws/whats-new/2025/12/aws-databases-are-available-on-the-vercel/ https://vercel.com/changelog/aws-databases-now-available-on-the-vercel-marketplace TEAM https://aws-samples.github.io/iam-identity-center-team/ https://github.com/aws-samples/iam-identity-center-team GitHub Actions https://github.blog/changelog/2025-12-22-improved-performance-for-github-actions-workflows-page/ Lambda Managed Instances https://docs.aws.amazon.com/lambda/latest/dg/lambda-managed-instances.html Atmos https://github.com/cloudposse/atmos/issues k8sdiagram.fun https://k8sdiagram.fun/ Marc Brooker https://brooker.co.za/blog/2025/11/20/what-now.html

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