Kubernetes interactive tutorial online

https://kubernetes.io/docs/tutorials/kubernetes-basics/cluster-interactive/

module 1

$ minikube version
minikube version: v0.17.1-katacoda
$ minikube start
Starting local Kubernetes cluster...
$ kubectl version
Client Version: version.Info{Major:"1", Minor:"8", GitVersion:"v1.8.0", GitCommit:"6e937839ac04a38cac63e6a7a306c5d035fe7b0a", GitTreeState:"clean", BuildDate:"2017-09-28T22:57:57Z", GoVersion:"go1.8.3", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"5", GitVersion:"v1.5.2", GitCommit:"08e099554f3c31f6e6f07b448ab3ed78d0520507", GitTreeState:"clean", BuildDate:"1970-01-01T00:00:00Z", GoVersion:"go1.7.1", Compiler:"gc", Platform:"linux/amd64"}
$ kubectl cluster-info
Kubernetes master is running at http://host01:8080
heapster is running at http://host01:8080/api/v1/namespaces/kube-system/services/heapster/proxy
kubernetes-dashboard is running at http://host01:8080/api/v1/namespaces/kube-system/services/kubernetes-dashboard/proxy
monitoring-grafana is running at http://host01:8080/api/v1/namespaces/kube-system/services/monitoring-grafana/proxy
monitoring-influxdb is running at http://host01:8080/api/v1/namespaces/kube-system/services/monitoring-influxdb/proxy

To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
$ kubectl get nodes
NAME STATUS ROLES AGE VERSION
host01 Ready 22m v1.5.2

module 2

kubectl run kubernetes-bootcamp --image=docker.io/jocatalin/kubernetes-bootcamp:v1 --port=8080

kubectl get deployments

kubectl proxy

curl http://localhost:8001/version

export POD_NAME=$(kubectl get pods -o go-template --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')
echo Name of the Pod: $POD_NAME


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

kubectl get pods

kubectl describe pods

kubectl logs $POD_NAME

kubectl exec $POD_NAME env

kubectl exec -ti $POD_NAME bash
curl localhost:8080
exit


kubectl get services

kubectl expose deployment/kubernetes-bootcamp --type="NodePort" --port 8080

kubectl get services

kubectl describe services/kubernetes-bootcamp

export NODE_PORT=$(kubectl get services/kubernetes-bootcamp -o go-template='{{(index .spec.ports 0).nodePort}}')
echo NODE_PORT=$NODE_PORT
curl host01:$NODE_PORT

kubectl describe deployment

kubectl get pods -l run=kubernetes-bootcamp

export POD_NAME=$(kubectl get pods -o go-template --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')
echo Name of the Pod: $POD_NAME

kubectl label pod $POD_NAME app=v1

kubectl describe pods $POD_NAME

kubectl get pods -l app=v1

kubectl delete service -l run=kubernetes-bootcamp
kubectl get services
curl host01:$NODE_PORT
kubectl exec -ti $POD_NAME curl localhost:8080

module 4

kubectl get deployments
kubectl scale deployments/kubernetes-bootcamp --replicas=4
kubectl get deployments

kubectl get pods -o wide

kubectl describe deployments/kubernetes-bootcamp

export NODE_PORT=$(kubectl get services/kubernetes-bootcamp -o go-template='{{(index .spec.ports 0).nodePort}}')
echo NODE_PORT=$NODE_PORT

curl host01:$NODE_PORT

kubectl scale deployments/kubernetes-bootcamp --replicas=2
kubectl get deployments
kubectl get pods -o wide

module 6

kubectl set image deployments/kubernetes-bootcamp kubernetes-bootcamp=jocatalin/kubernetes-bootcamp:v2

kubectl get pods
kubectl describe services/kubernetes-bootcamp
export NODE_PORT=$(kubectl get services/kubernetes-bootcamp -o go-template='{{(index .spec.ports 0).nodePort}}')
echo NODE_PORT=$NODE_PORT
curl host01:$NODE_PORT

kubectl rollout status deployments/kubernetes-bootcamp

kubectl describe pods

kubectl rollout status deployments/kubernetes-bootcamp

kubectl set image deployments/kubernetes-bootcamp kubernetes-bootcamp=jocatalin/kubernetes-bootcamp:v10
kubectl rollout undo deployments/kubernetes-bootcamp