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Using ingress to deploy a Node.js application on Kubernetes and ngrok to test application on a browser. Build Kubernetes using Minikube and manage Docker Container using Pods, Deployment, Services, and ingress manifest files

• About the Project

• Getting Started

  • Prerequisites
  • Installation

• Contact

Here's important point of this assignment: Using ingress to deploy a Node.js application on Kubernetes and with ngrok test application on a browse. Build Kubernetes using Minikube and manage Docker Container using Pods, Deployment, Services, and ingress manifest files

To get a local copy up and running follow these simple example steps.

1. AWS EC2 instance.

2. Docker.

3. Minikube.

4. K8s Manifest Files. (Deployment ,service ,ingress)

1. Create AWS EC2 instance of ubuntu OS image.

2. Install Docker on Ubuntu.

3. Install Minikube which uses Docker as driver.

Ref : https://medium.com/@sanjuthamke9699/day-31-task-launching-your-first-kubernetes-cluster-using-minikube-49e7ddef9ade

4. Minikube runs as a Docker Container to server the purpose of K8s.

5. Github url: https://github.com/sanjanathamke/Kubernet_Project.git

kubectl create namespace <namespace-name>
kubectl get namespaces

add a deployment.yaml file use namespace as kubeproject apply the deployment to your k8s (minikube) cluster by command kubectl apply -f deployment.yaml

kubectl apply -f deployment.yaml -n <namespace-name>

Apply the LoadBalancer Service definition to your K8s (minikube) cluster using the below command

kubectl apply -f load-balancer-service.yaml -n <namespace-name>

Get the LoadBalancer IP service:

The minikube service command is used to interact with services in a Minikube cluster. The — url option will return the URL that you can use to access the Service in your browser.

minikube service <service_name> -n=<namespace> --url

Note the LoadBalancer IP address of the LoadBalancer Service you want to verify.

Access the todo-app from outside the cluster using the LoadBalancer IP and the exposed port:

curl -L <load-balancer-ip>:<service-port>
curl -L http://http://192.168.49.2:31188

If the LoadBalancer Service is working correctly, you should see the response from the app

To enable the NGINX Ingress controller, run the following command:

minikube addons enable ingresss

create ingress.yaml file and apply ingress file

Create the Ingress object by running the following command

kubectl apply -f ingress.yaml -n <namespace-name>

Note the LoadBalancer IP address of the LoadBalancer Service

minikube service <service-name> -n <namespace-name> --url

Add the following line to the bottom of the /etc/hosts file on your computer (you will need administrator access):

192.168.49.2 nodejs-todo-app.info

Verify that the Ingress controller is directing traffic:

curl -L http://nodejs-todo-app.info

ngrok is a cross-platform application that enables developers to expose a local development server to the Internet with minimal effort. It creates a secure tunnel from the public internet to a local web server on your computer, making it possible to access the local web server from anywhere in the world.

Go to ngrok site, In that right click on Linux and copy link address

Create a new folder for ngrok setup, inside folder use command wget <copied_linux_address> this command will download ngrok.

wget https://bin.equinox.io/c/bNyj1mQVY4c/ngrok-v3-stable-linux-386.tgz

unzip downloaded file using :

 tar -xvzf <file_name>

Add authentication — Running below command will add your authtoken to the default ngrok.yml configuration file

./ngrok config add-authtoken 2N5jh4oJTnp0xM4z3ktc1JYeaAF_7agSW56UrMKSVNCshmBdu
 

Use command :

./ngrok http 192.168.49.2:31188
 

./ngrok http 192.168.49.2:31188 to make a tunnel. Here http 192.168.49.2:31188 is url of a service given by minikube service.

above command creates a tunnel and gives IP address which is ended with ngrok.io Copy and paste that ip in your browser. click on visit site and your website will visible

Sanjana Thamke - www.linkedin.com/in/sanjana-thamke-68827417b - My LinkedIn

Project Link: https://medium.com/@sanjuthamke9699/kubernetes-project-c1faded2499f