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Beispiel-Dokumentation: Ephemeral Debug Container

Einen fehlerhaften Pod mit kubectl debug untersuchen.

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Beispiel-Dokumentation: Ephemeral Debug Container

Ziel

Einen fehlerhaften Pod mit kubectl debug untersuchen.

01 / 05

Was gemacht wird

Das Lab erzeugt einen NGINX-Pod mit kaputter Readiness-Probe. Danach kann ein Ephemeral Container in den Pod eingefügt werden.

02 / 05

Typische Kommandos

bash
kubectl apply -f manifests/
kubectl describe pod broken-web -n debug-lab
kubectl debug -n debug-lab -it broken-web --image=busybox:1.36.1 --target=web
03 / 05

Erfolg prüfen

  • Der Pod läuft, wird aber nicht bereit.
  • describe zeigt fehlgeschlagene Readiness-Probes.
  • kubectl debug startet einen temporären Debug-Container.
04 / 05

Typische Fehler

  • RBAC erlaubt pods/ephemeralcontainers nicht.
  • Debug Container werden mit normalen Sidecars verwechselt.
  • Nicht jeder Runtime-/Cluster-Setup erlaubt dieselben Debug-Funktionen.
05 / 05

K8S · Orthevs Academy

31 modules as one continuous learning path.

The sequence remains unchanged: from the lab skeleton through technical foundations and operating models to final troubleshooting. The technical directory names are deliberately preserved.

Practice modules

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Open Orthevs in Safari. Tap Share, then Add to Home Screen. Enable Open as Web App if offered, then tap Add.

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For the web app, open the browser menu and choose Install app or Add to Home screen. Confirm the installation.

Desktop browser

Open the browser menu or the install icon in the address bar, then choose Install app or Add to Dock.

Web app installation depends on your browser. If no install prompt appears, follow the browser steps shown above.