Prerequisites

Before you begin, you should have the following tools installed on your local machine:

• Docker

• Minikube cluster ( Running )

• kubectl

• Git

# Steps:-

# For Docker Installation
sudo apt-get update
#Install Required Packages
sudo apt install -y curl wget apt-transport-https
#Install Docker
sudo apt install -y docker.io
# Start and enable Docker.
sudo systemctl enable --now docker
#Add current user to docker group (To use docker without root)
sudo usermod -aG docker $USER && newgrp docker
# Install Minikube
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
#Make it executable and move it into your path:
chmod +x minikube
sudo mv minikube /usr/local/bin/
#Install kubectl
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
#Make it executable and move it into your path:
chmod +x kubectl
sudo mv kubectl /usr/local/bin/
#Start Minikube
minikube start --driver=docker

Installation

Follow these steps to install and run the Reddit clone app on your local machine:

1. Clone this repository to your local machine: git clone https://github.com/SanketShirke/Reddit-Clone-K8s-Ingress.git

2. Navigate to the project directory: cd Reddit-Clone-K8s-Ingress

3. Build the Docker image for the Reddit clone app: docker build -t reddit-clone-app .

Push the Image To DockerHub

• First login to your DockerHub account using Command i.e docker login and give your username & password.

• Then use docker push <DockerHub_Username>/<Imagename> for pushing to the DockerHub.

• You can use an existing docker image i.e. trainwithshubham/reddit-clone

  for deployment.

  Write Deployment.yml file on the deployment server

• Open the deployment server write deployment.yml, and service.yml and deploy it using the below commands ( deployments and service yml files are given in the above git repo)

• Deploy the app to Kubernetes: kubectl apply -f Deployment.yml

  

• To check the running pods kubectl get pods

  

• Deploy the Service for deployment to Kubernetes: kubectl apply -f Service.yml

• If You want to check your deployment and service use the command kubectl get deployment & kubectl get services

  

  

• Access the application using minikube service reddit-clone-service --url

  

• You can test your deployment using: curl -L URL

  

  Expose the app

  1. First We need to expose our deployment so use kubectl expose deployment reddit-clone-deployment --type=NodePort command.

     

  2. Then We have to expose our app service kubectl port-forward svc/reddit-clone-service 3000:3000 --address 0.0.0.0 &

     

  3. Add Inbound rules 3000 in the security group of your deployment server

  4. Check the application on the server EC2ServerIP:Port

Let's Configure Ingress

ingress is used to route external traffic to the Kubernetes endpoints by different URLs:

1. Minikube doesn't enable ingress by default; we have to enable it first using minikube addons enable ingress command.

   

Let's write ingress.yml and put the following code in it:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: ingress-reddit-app
spec:
  rules:
  - host: "domain.com"
    http:
      paths:
      - pathType: Prefix
        path: "/test"
        backend:
          service:
            name: reddit-clone-service
            port:
              number: 3000
  - host: "*.domain.com"
    http:
      paths:
      - pathType: Prefix
        path: "/test"
        backend:
          service:
            name: reddit-clone-service
            port:
              number: 3000

Now you can able to create ingress for your service. kubectl apply -f ingress.yml use this command to apply ingress settings.

Test Ingress

Now It's time to test your ingress so use the curl -L domain.com/test command in the terminal.

You have successfully Deployed a Reddit Copy on Kubernetes with Ingress Enabled.