deploying bootcamp

Deploying bootcamp sample application

Deploying kubernetes-bootcamp application

• Deploying demo: $ microk8s.kubectl create deployment kubernetes-bootcamp --image=gcr.io/google-samples/kubernetes-bootcamp:v1

• Get all pods: $ microk8s.kubectl get pods

Accessing bootcamp deployment

• Set environment variable $POD_NAME to make further commands easier $ export POD_NAME=$(microk8s.kubectl get pods -o go-template --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')

  • If it does not work run $ microk8s.kubectl get pods copy the name of the pod and set the variable manually $ export POD_NAME=kubernetes-bootcamp-XXXXX

• Enabling proxy access to debug pods $ microk8s.kubectl proxy

  • Get information from the created pod (from another terminal)

    $ curl http://localhost:8001/api/v1/namespaces/default/pods/$POD_NAME/proxy/

• Get environment variables $ microk8s.kubectl exec $POD_NAME -- env

• Run terminal of the pod $ microk8s.kubectl exec -ti $POD_NAME -- bash

• Show a file content # cat server.js

  • Type exit to leave the section

Troubleshooting

• Describe pod $ microk8s.kubectl describe $POD_NAME

Exposing the deployment

• Get current services $ microk8s.kubectl get services

• Expose bootcamp deployment on port 8080 $ microk8s.kubectl expose deployment/kubernetes-bootcamp --type="NodePort" --port 8080

• Get current services, now with the exposed pod $ microk8s.kubectl get services

• Describing the created service $ microk8s.kubectl describe services/kubernetes-bootcamp

• Checking if it is working, from the given IP try a curl on IP:8080

• Removing the service $ microk8s.kubectl delete services/kubernetes-bootcamp

Removing the demo application

• Removing demo: $ microk8s.kubectl delete deployment.apps/kubernetes-bootcamp