Kubernetes Ingress Task

Description

In this project we'll :

1. Create a new deployment using the image yanivomc/spring-music:latest.
2. Expose the deploy using type = ClusterIP and with port 8090:8080
3. Scale pods to 2 .
4. Create an Ingress to access the service using http://127.0.0.1/music URL .

Getting started

Clone the github repository

git clone https://github.com/assiakhateeb/K8S-INGRESS.git
cd K8S-INGRESS

Working in your IDE

Prerequisites

The following items should be installed and ready in your system:

• docker

• Kubernetes

• NGINX Ingress Controller Installation Guide
  Run kubectl get pods -n ingress-nginx to check if nginx controller is running. The output is similar to the following:

  NAME                                        READY   STATUS      RESTARTS   AGE
  ingress-nginx-admission-create-mmjgp        0/1     Completed   0          67m
  ingress-nginx-admission-patch-kjxxc         0/1     Completed   1          67m
  ingress-nginx-controller-5c8d66c76d-nddcr   1/1     Running     0          6m9s
  

• git command line tool , I prefer to work with git Bash download.

• Your preferred IDE

  • IntelliJ IDEA
  • Pycharm
  • VS Code

Running The Application Locally

Before you begin, make sure your Kubernetes cluster is up and running.
Follow the steps given below to implement the steps 1 to 4 in the description:

1. Create the Deployment by running the following command:

   kubectl apply -f k8s.yaml
   

2. Run kubectl get deploy -owide to check if the Deployment was created. If the Deployment is being created, the output is similar to the following:

   NAME                READY   UP-TO-DATE   AVAILABLE   AGE   CONTAINERS   IMAGES                         SELECTOR
   spring-deployment   2/2     2            2           88s   spring       yanivomc/spring-music:latest   app=spring
   

3. In the file k8s.yaml we've created also a service and an ingress, check the file. 3.1
   Run kubectl get svc -owide to check if the Service was created. If the Service is being created, the output is similar to the following:

   NAME             TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)    AGE     SELECTOR
   spring-service   ClusterIP   10.98.146.110   <none>        8090/TCP   108s    app=spring
   

   3.2
   Run kubectl get ingress -owide to check if the Ingress was created. If the Ingress is being created, the output is similar to the following:

   NAME             CLASS    HOSTS   ADDRESS    PORTS   AGE
   spring-ingrees   <none>   *       localhost  80      5m27s
   

   3.3
   Run kubectl get po -owide to check if the Pods was created. If the Pods is being created, the output is similar to the following:

   NAME                                READY   STATUS    RESTARTS   AGE   IP          NODE             NOMINATED NODE   READINESS GATES
   spring-deployment-dd9dbb4d8-82gng   1/1     Running   0          26s   10.1.0.63   docker-desktop   <none>           <none>
   

4. Scale your pods to 2 by running the following command:

   kubectl scale deployment --replicas=2 spring-deployment
   

   4.1
   Run kubectl get po -owide to check if the Pods. Output:

   NAME                                READY   STATUS              RESTARTS   AGE   IP          NODE             NOMINATED NODE   READINESS GATES
   spring-deployment-dd9dbb4d8-82gng   1/1     Running             0          67s   10.1.0.63   docker-desktop   <none>           <none>
   spring-deployment-dd9dbb4d8-q5r5w   0/1     Running             0          50s   10.1.0.64   docker-desktop   <none>           <none>
   

5. Forward a local port to a port on the deployment's Pods.

   kubectl port-forward deployments/spring-deployment 8080
   

   If the above commands works. The output is similar to this:

   Forwarding from 127.0.0.1:8080 -> 8080
   Forwarding from [::1]:8080 -> 8080
   Handling connection for 8080
   Handling connection for 8080
   Handling connection for 8080
   

6. Now you can access http://127.0.0.1/music URL.

Full Spring Music Page:

Supported Components

• Core
  • kubernetes
  • docker
• Application
  • ingress-nginx

Useful Links

Deployments | Kubernetes
Service | Kubernetes
Use Port Forwarding to Access Applications in a Cluster