This example code is taken from Spring Boot CRUD Example with RESTful APIs, JPA, Hibernate, MySQL, Lombok, FreeMarker and VueJS

Cluster Development

The CNDE runs like a normal Pod within the Kubernetes cluster. Therefore it is possible that all applications you start can be accessed by a Kubernetes Service resource.

Since this demo exposes port 8888 the Service looks like this:

apiVersion: v1
kind: Service
metadata:
  name: product-web-test
spec:
  selector:
    app: code-server
    user-env-name: norbert
  ports:
    - protocol: TCP
      port: 8888

(The service' selector points to the running CNDE Pod with the Username Norbert)

To test the Web-application we want to create in this demo, we additionally need an Ingress resource to make the service available on the Internet:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
    kubernetes.io/tls-acme: "true"
  name: product-web
spec:
  rules:
  - host: product.norbert.kubeplatform.ch.innoq.io
    http:
      paths:
      - backend:
          serviceName: product-web-test
          servicePort: 8888
        path: /
  tls:
  - hosts:
    - product.norbert.kubeplatform.ch.innoq.io
    secretName: norbert-product-web-tls

This can be done for every application, that is running inside your CNDE.

Step by Step Demo Walkthrough

1. Clone the demo repository with [git clone https://github.com/Cloud-Native-Coding/cnde-example-springboot-crud-mysql-vuejs.git

2. In folder config execute k apply -k . to install required Kubernetes resources

3. Install Java

   sudo apt update
   sudo apt install default-jdk maven

4. Install VS-Code extensions: Java IDE Pack, Kubernetes Support

5. Run Application with mvn clean spring-boot:run

6. Move Browser to product.norbert.kubeplatform.ch.innoq.io

Demo Walk-through using Docker-Compose

Install Docker-Compose

sudo curl -L "https://github.com/docker/compose/releases/download/1.25.5/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
docker-compose up

Use Browser

head again to product.norbert.kubeplatform.ch.innoq.io