Dockerfile generator for your stack

Pick a stack and a few options and get a Dockerfile and a matching .dockerignore, ready to copy or download. Nothing is read from an existing project: you describe the new one.

Generate your files

What you get

• Twelve stacks: Node.js (Express, Nest and others), React, Vue, Angular, FastAPI, Django, .NET, Java, Go, Rust, PHP (Laravel, Symfony, plain Composer) and Ruby (Rails, Rack).
• Multi-stage by default: a build stage with the tools and a small runtime stage that copies the result. Prefer one stage? Choose production only or build and production mixed.
• Alpine or slim (Debian-based) base image, runtime version, port, package manager or build tool.
• React, Vue and Angular are built with Node and served by nginx, with an nginx.conf included.
• Healthcheck path, OS packages (apk or apt), runtime environment variables and build arguments such as VITE_* and NEXT_PUBLIC_*.
• A .dockerignore that matches the stack, so the build context stays small.

Sample output

# syntax=docker/dockerfile:1
FROM node:24-alpine AS base
WORKDIR /app

FROM base AS deps
COPY package.json package-lock.json* ./
RUN npm ci --omit=dev && mkdir -p node_modules

FROM base AS build
COPY package.json package-lock.json* ./
RUN npm ci
COPY . .
RUN npm run build
RUN rm -rf node_modules && mkdir -p .next/cache && mv .next /next

FROM base AS runtime
ENV NODE_ENV=production PORT=3000
# The code and its dependencies belong to root: the app can read them, not rewrite them.
COPY --from=build /app ./
COPY --from=deps /app/node_modules ./node_modules
# Next.js writes its cache under .next: the only folder of the app the node user can write (it is empty for other apps).
COPY --from=build --chown=1000:1000 /next ./.next
USER 1000:1000
EXPOSE 3000
CMD ["npm","start"]

How it works

1. Pick a stack and the options you need.
2. Preview every file, and edit or switch off any block.
3. Copy the files or download them as a zip.

Questions