# Context This is a POC to demonstrate how we can package and deploy a spring boot 2 based application to k8s. # Project structure The project consiste of the following : * Simple Spring boot 2 application, that expose a greeting endpoint. * Dockerfile manifest to build the image * deployment.yml manifest file for k8s resources definition (POD, SERVICE, PodDisruptionBudget) ### Reference Documentation For further reference, please consider the following sections: * [Kubernetes](https://kubernetes.io/) * [Official Apache Maven documentation](https://maven.apache.org/guides/index.html) * [Spring Boot](https://docs.spring.io/spring-boot/docs/{bootVersion}/reference/htmlsingle/#production-ready) # Deploy the spring application to kubernetes - Steps : * Build the demo spring boot application - docker image > mvn clean install \ > docker build -t demo:0.1.0 . * Push the built docker image to your own docker repository > docker images \ > docker login \ > docker push (your_repo_name)/demo-k8s:0.1.0 * Install minikube in your computer using these instructions - https://kubernetes.io/docs/tasks/tools/install-minikube/ * Start the minikube in your local machine > minikube start * Create the deployment in kubernetes - it helps to pull the spring boot demo app docker images and deploy in K8S. > kubectl create -f deployment.yml # your application will be deployed in kubernetes * View the container status > kubectl get pods * To get the external Ip for accessing your application, please run > kubectl get svc \ > minikube tunnel * Access your deployed spring boot application in kubernetes > curl (external-ip)/hello/jackma * To view the kubernetes setup > minikube dashboard # jenkins-docker-terraform-ansible