Kubernetes - getting started using Minikube

Getting started on Kubernetes - Local installation, running sample images and executing basic commands. 

There are different ways by which you can install Kubernetes, depending upon what you want. 

• Google cloud
• On Prem 
• Local installation (Minikube)

This video installs on Mac, you may want to find a suitable installation for your OS. 

1. Install Virtual box. 

sudo apt-get install virtualbox

1. Minikube. 

brew cask install minikube

1. Start minikube

minikube start

minikube status

1. Kubectl

Brew install kubectl

You can access Kubernetes cluster using the following ways:

1. CLI - kubectl
2. Dashboard
3. API

minikube dashboard

This opens up a dashboard which you can use to view the pods, replica sets and other information about the kubernetes. 

minikube stop

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Create a new sample app in minikube based on an existing image.

$kubectl run hello-minikube --image=gc4.io/google_containers/echoserver:1.4 --port=8080

deployment.apps "hello-minikube" created

exposing the deployment as a Nodeport

$kubectl expose deployment hello-minikube --type=NodePort

service "hello-minikube" exposed

ket the pod

$kubectl get pod

NAME                              READY     STATUS             RESTARTS   AGE

hello-minikube-7f45dd544b-qcwk2   0/1       ImagePullBackOff   0          2m

delete a deployment

~ $kubectl delete deployment hello-minikube

deployment.extensions "hello-minikube" deleted

You can create a deployment based on an image as below

Kubectl create deployment <deployment-name> —image=<image-name>

Kubectl get deployments

Get all the pods in the default namespace

Kubectl get pods

Kubectl get events

Expose deployment

Kubectl expose deployment <deployment-name> —type=LoadBalancer —port-80

Kubectl get services

Kubectl service <service-name>

kubectl delete service hello-node