MongoDB + Mongo Express on Kubernetes

This repository contains Kubernetes manifests to deploy a MongoDB StatefulSet with persistent storage and a Mongo Express web interface for managing your database. It includes initial data seeding and secure credentials using Kubernetes Secrets.

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Features:

• MongoDB StatefulSet with persistent storage (1Gi)

• Headless service for MongoDB for stable pod networking

• Mongo Express Deployment with ClusterIP service

• ConfigMap for initializing product-service-db with sample products

• Kubernetes Secrets for secure credentials

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Deployment:

After deployment, open your browser at, and you should see the Mongo Express deployment http://localhost:8081

Prerequisites:

i. Kubernetes cluster (kind) ii. kubectl installed and configured

• Optional: helm if you want to use charts later

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Deployment Instructions

1. Create Secrets:

kubectl apply -f mongo-secret.yaml

This will create the MongoDB root credentials and Mongo Express login credentials.

2. Create ConfigMap for Initial Data:

kubectl apply -f configmap.yaml

The ConfigMap seeds the MongoDB database with sample products.

3. StatefulSet MongoDB:

kubectl apply -f mongo-db.yaml

• The StatefulSet creates a persistent volume claim for data storage.
• MongoDB runs on port 27017 and uses the headless service mongo-headless

4. Mongo Express:

kubectl apply -f mongo-express.yaml

• Mongo Express runs on port 8081.
• Connects to MongoDB using the headless service mongo-headless.

Access Mongo Express:

local cluster

kubectl port-forward svc/mongo-express-service 8081:8081

Cleanup

kubectl delete -f mongo-express.yaml
kubectl delete -f mongo-db.yaml
kubectl delete -f configmap.yaml
kubectl delete -f mongo-secret.yaml