Tutorials, challenges, courses, skill paths, playgrounds, and more — search the whole library in one place.
Most Kubernetes debugging images ship as a single 200+ MB package. DebugBox takes a different approach: three variants (15 MB, 47 MB, 91 MB) each scoped to a specific debugging task. This tutorial covers when to use lite, balanced, and power, how to run each as an ephemeral container or debug pod, and what tools are available in each variant.
A distroless container serves a debug interface on its own loopback address. Can you reach this debug endpoint using nothing but standard Docker commands?
A Go service that has always been shipped as a static binary in a scratch-y image suddenly fails to start in a container, while the local build works as before. Find what recent changes caused it and fix the image without reverting them.
A Job manifest at /home/laborant/batch-job.yaml is exiting with a non-zero exit status. The Job has limited retries configured. Inspect the cluster and the manifest to find the bug, fix it, and reapply.
A webapp deployment in the prod namespace is stuck in CrashLoopBackOff. The application's startup probe checks that its existing config directory is intact before the container is marked healthy. Fix the deployment so configuration is injected correctly and the pod reaches Running state with its health check endpoint responding on port 8080.
