⚡ Next.js 14 + Redis cache + Kubernetes

Next.js web application with 2 pods sharing cache on Redis.

💬 About this repo

🐳 Docker

I created the Docker image following the example in:

https://github.com/vercel/next.js/tree/canary/examples/with-docker

I configured the output: "standalone" property in next-config.mjs.

More info at:

https://nextjs.org/docs/app/building-your-application/deploying#docker-image

🗃️ Cache

I use Redis to cache values and ensure consistency across all pods.

I installed @neshca/cache-handler using npm i -D @neshca/cache-handler:

https://caching-tools.github.io/next-shared-cache

I added cache-handler.mjs and configured the cacheHandler property in next.config.mjs.

I followed this example and the same pages to validate the cache using revalidateTag and revalidatePath:

https://github.com/vercel/next.js/tree/canary/examples/cache-handler-redis

More info at:

https://nextjs.org/docs/app/building-your-application/deploying#caching-and-isr

📸 Image optimization

I installed sharp using npm install sharp.

More info at:

https://nextjs.org/docs/app/building-your-application/deploying#image-optimization

🐋 Kubernetes

In the k8s folder, there are all the Kubernetes manifests to create two pods with the Next.js web application and one pod with a Redis server.

🏃 Run

🥇 Option 1

Run in dev mode with npm run dev.

🥈 Option 2

Run in Docker using Docker Compose with docker compose -f "compose.yaml" up -d --build.

🥉 Option 3

Run in Kubernetes:

1. Execute docker build -t nextjs-docker . to create the Docker image.
2. Execute kubectl apply -f k8s/configmaps/nextjs.yaml.
3. Execute kubectl apply -f k8s/deployments/nextjs.yaml.
4. Execute kubectl apply -f k8s/deployments/redis.yaml.
5. Execute kubectl apply -f k8s/services/nextjs.yaml.
6. Execute kubectl apply -f k8s/services/redis.yaml.
7. Access http://localhost:3000.

Note

You can use this option to deploy your Docker image on your VPS.