kubernetes-yaml/learn/learn-kubernetes-master/kiamol/ch05/lab/README.md

Ch05 lab

Run the app:

kubectl apply -f lab/todo-list

Check the pods - the proxy fails. Logs tell you why:

kubectl get pods

kubectl logs -l app=todo-proxy-lab

The proxy pod needs the cache directory to exist before it starts. So there are two volumes to provide:

• in the proxy a volume to mount to /data/nginx/cache (from the logs)
• in the web app a mount to /data (from the env settings in the pod spec).

Sample solution

I'm using PVCs with no storage class defined, so they will use the default provisioner. These YAML files contain the PVC spec and updated deployment specs:

• proxy.yaml
• web.yaml

Deploy the updates and check volumes:

kubectl apply -f lab/solution/

kubectl get pvc

kubectl get pv

Find the URL for the proxy:

kubectl get svc todo-proxy-lab -o jsonpath='http://{.status.loadBalancer.ingress[0].*}:8082'

Browse, add some items, delete the pods:

kubectl delete pod -l app=todo-proxy-lab

kubectl delete pod -l app=todo-web-lab

Refresh your browser, and you should see your original data.