Dockerfile & Compose Generator
Interactive visual builder for hardened, multi-stage Dockerfiles and Docker Compose stacks.
Production Dockerfile & Compose Generator
Quickly configure multi-stage container builds with built-in security hardening, non-root users, healthchecks, and companion compose stacks.
Production Dockerfile & Compose Generator
Configure your stack and generate production-hardened multi-stage Dockerfiles with security best practices.
# ----------------------------------------------------
# Multi-Stage Production Dockerfile for Node.js
# ----------------------------------------------------
# Stage 1: Build & Dependencies
FROM node:20-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npm run build --if-present
# Stage 2: Production Minimal Runtime
FROM node:20-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production
# Run as unprivileged non-root user
RUN addgroup -S appgroup && adduser -S appuser -G appgroup
# Copy only production artifacts
COPY --from=builder /app/package*.json ./
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/dist ./dist 2>/dev/null || COPY --from=builder /app ./
USER appuser
EXPOSE 3000
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD wget --no-verbose --tries=1 --spider http://localhost:3000/healthz || exit 1
CMD ["node", "dist/index.js"]Generator Highlights & Production Best Practices
Creating production-grade containers requires more than just FROM node:latest and COPY . .. This generator implements industry standards for security, performance, and maintainability:
Multi-Stage Builds
Least Privilege Non-Root Execution
UID 0). Our generator automatically provisions dedicated non-root service accounts (appuser:appgroup or nobody) and assigns read/write permissions only where required.Active Docker Healthchecks
Minimal Distroless / Alpine Bases
Understanding the Generated Artifacts
1. Dockerfile
The Dockerfile is organized in sequential stages:
- Build Stage (
builder): Installs dependencies with cache mounts (--mount=type=cache), compiles binaries or bundles JavaScript, and prunes dev dependencies. - Runtime Stage (
runner): Starts from a stripped base image, creates a dedicated system user, copies only artifacts needed for execution, and sets strict file permissions.
2. docker-compose.yml
Generates a complete local development and staging orchestration setup with:
- Configured ports and restart policies (
unless-stopped). - Isolated internal network bridges.
- Optional persistence volumes for databases (PostgreSQL, MySQL, Redis).
- Environment variable injection and container dependency graphs (
depends_on).
3. .dockerignore
Prevents local node_modules/, .git/, .env secrets, and IDE caches from being inadvertently copied into the container build context, speeding up upload times and protecting sensitive credentials.