Reddit Clone App on Kubernetes with Ingress

This project demonstrates how to deploy a Reddit clone app on Kubernetes with Ingress and expose it to the world using Minikube as the cluster. Below is an overview of the architecture of this Reddit Clone App running on Kubernetes with Ingress.

Prerequisites

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

• Docker
• Minikube cluster ( Running )
• kubectl
• Git

You can install Prerequisites by doing these steps. click here & complete all steps one by one.

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/LondheShubham153/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 .
4. Deploy the app to Kubernetes: kubectl apply -f deployment.yaml
5. Deploy the Service for deployment to Kubernetes: kubectl apply -f service.yaml
6. Enable Ingress by using Command: minikube addons enable ingress
7. Expose the app as a Kubernetes service: kubectl expose deployment reddit-deployment --type=NodePort --port=5000
8. Create an Ingress resource: kubectl apply -f ingress.yaml

Test Ingress DNS for the app:

• Test Ingress by typing this command: curl http://domain.com/test

Cluster Monitoring using Prometheus & Grafana

Key Components :

• Prometheus server - Processes and stores metrics data
• Alert Manager - Sends alerts to any systems/channels
• Grafana - Visualize scraped data in UI

Pre Requisites :

• EKS Cluster is setup already
• Install Helm
• EC2 instance to access EKS cluster

Installation Steps

helm repo add stable https://charts.helm.sh/stable
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm search repo prometheus-community
kubectl create namespace prometheus
helm install stable prometheus-community/kube-prometheus-stack -n prometheus
kubectl get pods -n prometheus
kubectl get svc -n prometheus

Edit Prometheus Service (Edit type : LoadBalancer)

kubectl edit svc stable-kube-prometheus-sta-prometheus -n prometheus

Edit Grafana Service (Edit type : LoadBalancer)

kubectl edit svc stable-grafana -n prometheus

Verify if service is changed to LoadBalancer and also to get the Load Balancer URL.

kubectl get svc -n prometheus

Access Grafana Dashboard

UserName: admin 
Password: prom-operator

For creating a dashboard to monitor the cluster:

Click '+' button on left panel and select ‘Import’.
Enter 12740 dashboard id under Grafana.com Dashboard.
Click ‘Load’.
Select ‘Prometheus’ as the endpoint under prometheus data sources drop down.
Click ‘Import’.

Images For reference

Contributing

If you'd like to contribute to this project, please open an issue or submit a pull request.