memstack-deployment-docker-setup

🐳 Docker Setup — Container Configuration Generator

Analyze a project and generate optimized Dockerfiles, docker-compose configs, and deployment-ready container setups with health checks and volume management.

Activation

When this skill activates, output:

🐳 Docker Setup — Containerizing your project...

Context	Status
User says "Docker", "Dockerfile", "docker-compose"	ACTIVE
User wants to containerize their application	ACTIVE
User mentions multi-stage builds, Docker optimization, or .dockerignore	ACTIVE
User wants CI/CD with Docker (pipeline focus)	DORMANT — see ci-cd-pipeline
User wants server provisioning with Docker installed	DORMANT — see hetzner-setup
User wants Kubernetes orchestration	DORMANT — beyond current scope

Protocol

Step 1: Gather Inputs

Ask the user for:

• Project type: Node.js, Python, Go, Rust, static site?
• Purpose: Local development, production deployment, or both?
• Services needed: Database (PostgreSQL, MySQL), cache (Redis), queue (RabbitMQ)?
• Build artifacts: Does the project compile to a binary or run interpreted?
• Environment: Where will containers run? (local, VPS, cloud container service)

Step 2: Analyze Project & Generate Dockerfile

Detect project type from files and generate an optimized multi-stage Dockerfile:

Node.js (multi-stage):

# Stage 1: Install dependencies
FROM node:20-alpine AS deps
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci --ignore-scripts

# Stage 2: Build
FROM node:20-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
RUN npm run build

# Stage 3: Production
FROM node:20-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production

# Security: run as non-root
RUN addgroup --system --gid 1001 appgroup && \
    adduser --system --uid 1001 appuser

COPY --from=builder --chown=appuser:appgroup /app/dist ./dist
COPY --from=builder --chown=appuser:appgroup /app/node_modules ./node_modules
COPY --from=builder --chown=appuser:appgroup /app/package.json ./

USER appuser
EXPOSE 3000

HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/health || exit 1

CMD ["node", "dist/index.js"]