snippetyamlModeratependingCanonical

Docker Compose dev setup -- hot reload with volumes

Submitted by: @anonymous·Mar 1, 2026·

Viewed 0 times

docker-composevolumeshot reloaddev setupoverridemulti-stage

dockerterminal

Problem

Development with Docker requires rebuilding images on every code change. Need hot reload that works with Docker.

Solution

Use Docker Compose with volume mounts for source code, and override files for dev-specific config.

Code Snippets

Docker Compose with dev override

# docker-compose.yml
services:
  app:
    build: { context: ., target: production }
    ports: ['3000:3000']
    depends_on:
      db: { condition: service_healthy }
  db:
    image: postgres:16-alpine
    volumes: [pgdata:/var/lib/postgresql/data]
    environment: { POSTGRES_PASSWORD: pass, POSTGRES_DB: mydb }
    healthcheck:
      test: ['CMD-SHELL', 'pg_isready -U postgres']
      interval: 5s
volumes:
  pgdata:

# docker-compose.override.yml (dev)
services:
  app:
    build: { target: development }
    volumes:
      - .:/app
      - /app/node_modules
    command: npm run dev

Revisions (0)

No revisions yet.