Docker Containerization and Deployment Guide
Generate a complete Docker setup for any application including Dockerfile, docker-compose configuration, multi-stage builds, and production deployment best practices.
Prompt Template
You are a DevOps engineer specializing in containerization. Create a complete Docker setup for an application with production-ready best practices. **Application:** [e.g., Next.js 14 app with PostgreSQL database and Redis cache] **Language/runtime:** [e.g., Node.js 20, Python 3.12] **Services needed:** [e.g., web app, database, cache, worker process] **Environment:** [e.g., development + production on AWS ECS] **Current setup:** [e.g., runs directly on host, no containerization yet] Provide: 1. **Dockerfile** — multi-stage build with: - Minimal base image selection with reasoning - Layer caching optimization - Security hardening (non-root user, minimal packages) - Health check configuration - Build args and environment variables 2. **docker-compose.yml** — for local development with: - All services with dependency ordering - Volume mounts for hot reload - Network configuration - Environment variable management 3. **docker-compose.prod.yml** — production overrides with: - Resource limits - Restart policies - Log configuration - Secrets management 4. **.dockerignore** — optimized for the stack 5. **Build & Deploy Scripts** — CI-ready build commands 6. **Troubleshooting Guide** — top 5 common issues and fixes Include inline comments explaining every non-obvious decision.
Example Output
Docker Setup: Next.js + PostgreSQL + Redis
Dockerfile (multi-stage)
# Stage 1: Dependencies
FROM node:20-alpine AS deps
WORKDIR /app
# Copy package files first for layer caching
COPY package.json pnpm-lock.yaml ./
RUN corepack enable && pnpm install --frozen-lockfile
# Stage 2: Build
FROM node:20-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
RUN pnpm build
# Stage 3: Production
FROM node:20-alpine AS runner
WORKDIR /app
# Security: non-root user
RUN addgroup --system app && adduser --system --ingroup app app
COPY --from=builder --chown=app:app /app/.next/standalone ./
COPY --from=builder --chown=app:app /app/public ./public
COPY --from=builder --chown=app:app /app/.next/static ./.next/static
USER app
EXPOSE 3000
HEALTHCHECK --interval=30s CMD wget -q --spider http://localhost:3000/api/health
CMD ["node", "server.js"]
docker-compose.yml
services:
web:
build: .
ports: ["3000:3000"]
volumes: ["./src:/app/src"] # Hot reload
depends_on:
db: { condition: service_healthy }
redis: { condition: service_healthy }
db:
image: postgres:16-alpine
volumes: ["pgdata:/var/lib/postgresql/data"]
healthcheck:
test: pg_isready -U postgres
volumes:
pgdata:
Image Size Results
| Stage | Size |
|-------|------|
| deps | 487MB |
| builder | 612MB |
| **runner (final)** | **89MB** |
Multi-stage build reduces final image by 85%.
Tips for Best Results
- 💡Always use multi-stage builds — your production image should never contain build tools or dev dependencies
- 💡Order Dockerfile instructions from least to most frequently changed for optimal layer caching
- 💡Never run containers as root in production — always create and switch to a non-root user
- 💡Use health checks in both Dockerfile and docker-compose to catch startup failures early
Frequently Asked Questions
What is the Docker Containerization and Deployment Guide prompt?
Generate a complete Docker setup for any application including Dockerfile, docker-compose configuration, multi-stage builds, and production deployment best practices. It's a free ChatGPT prompt template from our Coding collection — copy it, fill in the bracketed variables, and paste it into your AI tool.
Which AI tools work with this prompt?
It's written and tested for ChatGPT, Claude and Gemini. Any AI assistant that accepts free-form text prompts will handle it well.
How do I customize this ChatGPT prompt?
Replace the bracketed variables — such as [e.g., Node.js 20, Python 3.12] — with your own details before running it. Always use multi-stage builds — your production image should never contain build tools or dev dependencies
Is this prompt free to use?
Yes. Every prompt on PromptAtlas is free to copy, customize, and use — no signup required.
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