Deploy SvelteKit node servers with docker

When you are NOT deploying to a nice and simple platform like Vercel, you may be doing things a little more manually.

For SvelteKit that is often really easy, tooling like nixpacks allows for a pretty much seamless deployment of most any application anywhere.

I was working on a simple little test app to explore the functionality of how Coolify and SvelteKit both handles subdomains and I was getting a node version mismatch error due to a dep requiring one of a few specific node versions.

Due to this I had to go the route of deploying with Docker instead, so here is a bare minimum Dockerfile for SvelteKit should anyone need one in the future.

# ---- Build stage ---- FROM node:24-alpine AS build WORKDIR /app # Install dependencies (cache-friendly) COPY package.json package-lock.json ./ RUN npm ci # Copy source and build COPY . . RUN npm run build # ---- Run stage ---- FROM node:24-alpine AS run WORKDIR /app # Copy the built app COPY --from=build /app/package.json ./ COPY --from=build /app/build ./build EXPOSE 3000 CMD ["node", "build"] 

Cheers