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09 Blue Green Release

Dieses Lab zeigt ein Blue-Green-Release mit zwei Deployments und einem Service-Switch über Labels.

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09 Blue Green Release

Dieses Lab zeigt ein Blue-Green-Release mit zwei Deployments und einem Service-Switch über Labels.

Prüfen

bash
kubectl apply --dry-run=client -f manifests/
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Ausführung

bash
kubectl apply -f manifests/
kubectl rollout status deployment/checkout-blue -n release-lab
kubectl rollout status deployment/checkout-green -n release-lab
kubectl get deploy,svc,endpoints -n release-lab
kubectl port-forward -n release-lab svc/checkout 8080:80

Der produktive Service zeigt zunächst auf track=blue. Der Wechsel auf Green erfolgt über einen Service-Patch:

bash
kubectl patch service checkout -n release-lab \
  --type=merge \
  -p '{"spec":{"selector":{"app":"checkout","track":"green"}}}'

Rollback auf Blue:

bash
kubectl patch service checkout -n release-lab \
  --type=merge \
  -p '{"spec":{"selector":{"app":"checkout","track":"blue"}}}'
02 / 04

Lernpunkte

  • Blue und Green laufen parallel und können getrennt geprüft werden.
  • Der Service ist der Traffic-Schalter.
  • Ein zusätzlicher Green-Service erlaubt Smoke-Tests vor dem Umschalten.
  • Das PDB schützt die stabile Blue-Version während Wartung oder Drain.
03 / 04

Cleanup

bash
kubectl delete namespace release-lab
04 / 04

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

Orthevs as an app

Install Orthevs

The Orthevs web app can be installed on supported mobile devices and desktop browsers.

iPhone and iPad

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

Android

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.