How to Generate Local Dev Setup with Cursor

1---
2description: Docker and container rules
3globs: "Dockerfile*, docker-compose*, .dockerignore"
4alwaysApply: false
5---
6
7- Use multi-stage builds for all application Dockerfiles
8- Base images: node:22-alpine for Node.js, python:3.12-slim for Python
9- Never run as root in production containers — use USER node or USER app
10- Always include health checks for all services
11- Use named volumes for database data, not bind mounts
12- Environment variables via .env file reference, never hardcoded
13- Expose only necessary ports
14- Add .dockerignore to exclude node_modules, .git, .env
15- Use depends_on with condition: service_healthy for startup ordering

1// Prompt to type in Cursor Composer (Cmd+I):
2// @package.json @Dockerfile
3// Generate a docker-compose.yml for local development with:
4// 1. App service: Node.js with hot reload (mount src/ as volume)
5// 2. PostgreSQL 16 with named volume for data persistence
6// 3. Redis 7 for caching
7// 4. pgAdmin for database management
8// Requirements:
9// - Health checks on all services
10// - depends_on with service_healthy conditions
11// - Environment variables from .env file
12// - Custom network for service discovery
13// - Expose only app (3000) and pgAdmin (5050) to host

1// Prompt to type in Cursor Composer (Cmd+I):
2// @package.json @tsconfig.json
3// Generate a multi-stage Dockerfile for this Node.js project:
4// Stage 1 (builder): install deps, compile TypeScript, build project
5// Stage 2 (production): copy built files, install prod deps only
6// Requirements:
7// - Use node:22-alpine as base
8// - Run as non-root user
9// - Include HEALTHCHECK instruction
10// - Copy only necessary files (not src/, tests/, docs/)
11// - Set NODE_ENV=production

1// Prompt to type in Cursor Chat (Cmd+L):
2// @docs/schema.sql
3// Generate a Docker entrypoint SQL script at docker/init.sql that:
4// 1. Creates the database if it doesn't exist
5// 2. Runs all schema creation from the referenced schema
6// 3. Inserts 10 realistic seed users and 50 seed orders
7// 4. Is idempotent (safe to run multiple times)
8// This will be mounted in docker-compose.yml at:
9// /docker-entrypoint-initdb.d/init.sql

1// Prompt to type in Cursor Chat (Cmd+L):
2// @docker-compose.yml @Dockerfile
3// My docker compose up failed with this error:
4// [paste the error output]
5// Diagnose the issue and provide the exact fix.
6// Show the corrected YAML or Dockerfile section.