Dockerfile Generator

Generate optimized multi-stage Dockerfiles for Node, Python, Java, and Go.

🔧 Stack

Language / Framework

Base OS Image

📦 Architecture

Use Multi-Stage BuildRecommended

🌐 Networking

Exposed Port

Generate HEALTHCHECK

Dockerfile

# Stage 1: Build
FROM node:20-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npm run build

# Stage 2: Production
FROM node:20-alpine
WORKDIR /app
ENV NODE_ENV=production
COPY --from=builder /app/package*.json ./
RUN npm ci --only=production
COPY --from=builder /app/dist ./dist
EXPOSE 3000
CMD ["npm", "start"]

# Stage 1: Build
FROM node:20-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npm run build

# Stage 2: Production
FROM node:20-alpine
WORKDIR /app
ENV NODE_ENV=production
COPY --from=builder /app/package*.json ./
RUN npm ci --only=production
COPY --from=builder /app/dist ./dist
EXPOSE 3000
CMD ["npm", "start"]

How the Dockerfile Generator Works

Writing optimal Dockerfiles from scratch requires knowing the best base images, package managers, and caching layers for your specific programming language.

This tool automatically generates multi-stage Dockerfiles. Multi-stage builds are a Docker best-practice that uses a heavy image (like Maven or Node) to build your code, but then copies only the compiled artifact into a tiny, secure runner image (like Alpine) for production.

🔧 Stack

📦 Architecture

🌐 Networking

Dockerfile

How the Dockerfile Generator Works

Related Tools