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Minikube how to

Official getting started

minikube update-check
# install new version
curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-darwin-amd64
sudo install minikube-darwin-amd64 /usr/local/bin/minikube

Personal script is ~/bin/ministart, amy take some time if it downloads new VM image.

  • Retrieve all Kubernetes context (they are saved in ~/bin/.kube/config)
kubectl config get-contexts
  • Change kubectl context between openshift and minikube:
kubectl config use-context minikube
kubectl config use-context default/c117-e-us-south-containers-cloud-ibm-com:31580/IAM#boyerje@us.ibm.com
# same with
kubectx minikube
  • Retrieve the nodes: 
kubectl get nodes
  • Add the metric server to the minikube cluster
minikube addons enable metrics-server
  • Dashboard UI
minikube dashboard

Use docker CLI to build image

  • Install docker CLI
brew install docker
  • Expose the Docker daemon from minikube to the local terminal environment.
eval $(minikube docker-env)
  • Enable docker local daemon to push images to minikube registry
minikube addons enable registry
  • Build a quarkus app and deploy it to minikube
mvn verify -Dquarkus.kubernetes.deploy=true
  • Get the service and app url:
kubectl get svc
minikube service quarkus-reactive-kafka-producer --url
  • Deploy an existing app
kubectl create deployment hello-minikube --image=k8s.gcr.io/echoserver:1.4
kubectl expose deployment hello-minikube --type=NodePort --port=8080
  • Build docker image