kripu77/ts-node-redis-sentinel-k8s-example

Example on how to use redis sentinel with node.js leveraging ioredis module in an K8s env.

ts-node-redis-sentinel-k8s-example

Overview

This repository serves as a demonstration of harnessing the power of TypeScript, Redis, Helm and Kubernetes. The included TypeScript application showcases the seamless integration of Node.js with Redis Sentinel for robust and scalable solutions. Additionally, Helm charts are provided to simplify the deployment process on Kubernetes.

Prerequisites

Make sure you have the following tools installed:

• Node.js (for running the TypeScript application)
• Helm (for managing Kubernetes applications)
• Kubernetes cluster (local or cloud-based)

The example will be based on minikube:

Getting Started

1. Clone this repository to your local machine:

   git clone https://github.com/kripu77/ts-node-redis-sentinel-k8s-example.git
   cd ts-node-redis-sentinel-k8s-example

2. Create a docker image for the sampleapp located inside app directory:

   cd app
   docker build -f dockerfile.local -t sample-app:tag .
   
   example:
   docker build -f dockerfile.local -t sample-app:0.1.0 .

3. Asuuming Minikube is running on your local machine Load the docker image into minikube.

   minikube image load sample-app:tag .

4. Create a namespace for the application stack:

   kubectl create namespace <your-desired-namespace>
   
   example:
   kubectl create namespace ts-node-redis-sentinel-k8s-example  

5. Switch to the helm-chart directory in order to Deploy Redis Sentinel and the node.js app using Helm:

   cd ../helm-chart
   helm install ts-node-redis-sentinel-k8s-example ./ -n  <your-desired-namespace>
   
   example:
   helm install ts-node-redis-sentinel-k8s-example ./ -n  ts-node-redis-sentinel-k8s-example

6. Access the application:

   kubectl get svc -n <your-namespace-where-application-is-running>
   
   minikube service cd-service --url -n <your-namespace-where-application-is-running>
   
   example:
   kubectl get svc -n  ts-node-redis-sentinel-k8s-example
   minikube service cd-service --url -n ts-node-redis-sentinel-k8s-example
   

   The application is now running! Visit the url displayed on your console.

Cleanup

To remove the deployed resources:

helm uninstall ts-node-redis-sentinel-k8s-example ./ -n  <your-desired-namespace>