Step to create and deploy docker image using kubernetes.

1) Docker

i) create a DockerFile and include the parameters as per the project requirement

docker image build -t react-app .

Optional: To Run the image on a specific port

docker run -p 3000:3000 -d react-app

ii) Move the image to the docker hub using dockerhub account

docker login
docker tag react-app <username>/repo-name:v1
docker push <username>/repo-name:v1

2) Install Minikube

To deploy on Kubernetes, we need to create a local cluster for that supports all the features needed to run Kubernetes. Minikube is the best solution for it. minikube implements a local Kubernetes cluster on macOS, Linux, and Windows. minikube's primary goals are to be the best tool for local Kubernetes application development and to support all Kubernetes features that fit.

brew cask install minikube
minikube start
minikube dashboard

DOCKER_REGISTRY_SERVER=docker.io
DOCKER_USER=dhinkris
DOCKER_PASSWORD=
DOCKER_EMAIL=
kubectl create secret docker-registry regcred   --docker-server=$DOCKER_REGISTRY_SERVER   --docker-username=$DOCKER_USER   --docker-password=$DOCKER_PASSWORD   --docker-email=$DOCKER_EMAIL
kubectl get secret regcred --output=yaml

Prior to installing minikube, 1) Make sure you have kubectl installed. 2) Install VirtualBox

3) Deploy docker image to kubernetes

i) create deployment.yaml file that contains the deployment specific configurations that includes the name of the application, number of replicas/pods.

kubectl apply -f deployment.yaml

ii) Define a service on services.yaml. Here mention the port/protocal where the application has to run. Again run,

kubectl apply -f deployment.yaml