The latest news, tutorials, and guides for DevOps professionals.

What keeps working in a Tailscale mesh when the control server is down. Headscale plus real tailscaled clients on one host: 30-minute outages, joins, revocation, key expiry, and client restarts with and without netmap caching. Recorded runs included.

How long a GitHub Actions self-hosted runner version keeps running jobs, from GitHub's own deprecations API, plus real runners of four versions tested against github.com.

Price a month of S3-compatible storage on nine offerings from eight providers with the fine print applied: free-egress ratios, fair-use policies, bundles, minimums. Every price sourced.

What breaks when containerd 1.7 becomes 2.x, recorded on 1.7.36, 2.3.6 and 2.4.1 against the same data, plus a read-only node check script.

Turn a labeled GitHub issue into a pull request with an OpenCode agent on DigitalOcean Managed Agents. The agent gets no GitHub token; every run is recorded.

A complete branch-local AI incident search demo using Neon Functions, Auth, Object Storage, Lakebase Postgres, and AI Gateway.

Rehearse every Postgres migration on a Neon branch of production: app traffic during the run, gates for errors, lock stalls and lost rows, Neon schema diff, and a GitHub Action that comments on each PR.

How evenly nginx, HAProxy and Envoy spread keys with consistent hashing: 1M-key runs, source-exact ring ports checked key by key, and why the default point count decides the busiest server.

A multi-tenant task board with no backend: static React, Neon Auth organizations, Neon Data API and RLS. 27 attacks from a hostile signed-in user, 4 realistic mistakes shown to be caught.