Practical articles on AI, DevOps, Cloud, Linux, and infrastructure engineering.
A field guide to the OSS observability stack in 2026, sorted by pillar, with honest notes on where self-hosting pays off and where the ops burden bites.
A pod sits Pending and the scheduler quietly logs why it rejected every node. Learn to read that one line and fix the real cause instead of guessing.
We ran the same test suite on both platforms for a year. Here's where CircleCI earns its price, where GitHub Actions wins on simplicity, and what the bill actually looks like.
Your build fails, your containers won't start, and df says the disk is full. Here's where Docker hides the gigabytes and how to get them back safely.
HashiCorp relicensed Terraform and a community fork spun up overnight. Here's how OpenTofu actually differs and which one your team should run.
The metrics stack you self-host is free software plus a real ops bill. Datadog hands you everything and mails you the invoice. Here's how we pick.
Evicted pods are the kubelet telling you a node ran out of something. Here's how to read the signal, stop the bleeding, and keep it from happening again.
You run docker run, and it refuses to bind port 8080. Something already owns that port. Here is how to find the holder and get your container up.
A pod dies, restarts, dies again, and the events say OOMKilled. Here is what exit code 137 actually means and how to stop the loop for good.
A Pending pod means the scheduler couldn't place it or the node couldn't start it. Here's how to read the events and clear the eight causes we hit most.
One vendor sends the invoice, the other sends the ops work. Here's how we pick between Datadog and the Grafana stack without regretting it later.
We've run both in anger. Here's the honest breakdown of maintenance, cost, and flexibility, plus when Jenkins still earns its keep.
