26 articles tagged with Operations.
Most Docker time is spent fighting the same handful of errors. This is the map: what each one means, the command that reveals the cause, and the fix.
Git's errors are scarier than the fixes. This is the map to the ones everyone hits: what each message means, the safe way out, and how to avoid losing work.
Teams spend most of their Kubernetes time debugging, not building. This is the map to the errors that eat that time: what each one means, how to diagnose it fast, and the fix.
A pod that logged fine for weeks starts throwing EMFILE at 3am. Here's how to tell a real file-descriptor leak from a limit that's just set too low.
The ordered kubectl toolkit we reach for when a pod misbehaves, with the five commands we run first and what each one actually tells you.
A node flips to NotReady and pods start disappearing. Here's the order we check things in, the usual culprits, and how to recover without making it worse.
Deleting a committed file only hides it from the latest commit. The blob still lives in history, and if it was a secret, it's already compromised.
A PVC stuck in Pending means nothing on the cluster can hand it a volume. Here's how we read the events and get it bound fast.
The rebase-vs-merge fight is mostly people talking past each other. Here's the rule we actually follow, and the one time it saved a release.
Three Git commands that all "undo" things, and picking the wrong one on a shared branch is how you ruin a teammate's afternoon. Here's how to keep them straight.
Your pods are running, your Service exists, and nothing can reach it. Here's the exact order we check things when a Kubernetes Service goes dark.
A pod stuck in CreateContainerConfigError means kubelet can't build the container config, almost always a ConfigMap or Secret reference that doesn't line up.
