Overview

kubefit is a command-line trainer for practical Kubernetes and Linux exams. It runs timed, graded drills on your own machine. The app, app.kubefit.com, holds the concepts and playbook for each track, your reports and readiness, your notebooks, Coach Caz workouts, a command recall exercise and your account.

New here? Go straight to the Quickstart: account, login, packs and a first CKA cold pass in about ten minutes. If kubefit demo or kubefit start reports a missing tool, Install has the full setup.

Tracks

There are eight packs of 25 drills each. Seven follow a certification's public domains; one is a workshop. Each track also has one 17-question mock exam.

Tracks and cluster profiles has the runtime, cluster profile and extra tools for each. KubeFit is independent: see About KubeFit.

The loop

1. Read. Each track has a Concepts guide and a Playbook in the app, organised by the exam's domains and weights, with the documentation the exam lets you open. See Concepts and playbooks.
2. Drill. kubefit drill cka seeds a scenario into a local kind cluster (LFCS uses a disposable Ubuntu VM), prints the task and starts the clock. kubefit grade checks the real state of the cluster as often as you like. Exiting the drill shell records the rep.
3. Review. Reps sync to your account. kubefit report and the app's Reports page weight your domains like the exam, measure your pace against each task's target and pick what to drill next. kubefit note keeps what you learned.

What a rep records

Every graded attempt stores the exercise, the target minutes, elapsed seconds, whether it passed, how many checks passed, and how many grades it took. An uninterrupted pass on the first grade, with no hints, no solution and no pause, is a cold pass, which is the exam skill the report tracks separately from "got there eventually".

Where things run

Next: Quickstart.