# This file defines how to run your application container.
# It specifies the build context, port mappings, and environment variables.

version: '3.8'

services:
  web:
    # 'build: .' tells Docker Compose to look for the Dockerfile in the current directory.
    build: .
    # The name for the running container.
    container_name: swapstation_app
    # Restart the container automatically if it stops.
    restart: always
    # Map port 80 on the host (the AWS server) to port 80 in the container (where Nginx is listening).
    ports:
      - "80:80"
    # This section tells Docker Compose to read environment variables from a file named '.env'.
    # This is how you will pass your secrets and configuration to the application.
    env_file:
      - .env