26 articles tagged with Operations.
Every crash loop leaves a number behind. Learn to read exit codes straight from kubectl describe and know the fix before you open the logs.
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.
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.
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.
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.
Your push bounces because the remote moved on without you. Here is how to catch up cleanly, when to rebase versus merge, and when a force-push is actually safe.
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.
You run the container, check docker ps, and it's already gone. Nine times out of ten it's PID 1 doing its job. Here's how to read it.
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.
You committed too early, wrote a bad message, or included the wrong file. Here's the decision tree for undoing a Git commit safely, by what you actually want to keep.
A merge conflict isn't Git breaking. It's Git asking you a question it can't answer alone. Here's how to answer it calmly, every time.
CrashLoopBackOff means your container keeps dying on startup and Kubernetes keeps restarting it slower each time. Here's the diagnosis flow we actually use.
