version: '3.8'

# Deploy with:
#   docker stack deploy -c postgres.yml postgres
#
# Runs on: POSTGRES_INSTANCE (ip-10-0-1-173)
# Creates databases and users for all services on first boot via init scripts.
# Data is persisted in a named Docker volume on the postgres node.

services:
  postgres:
    image: postgres:16
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data

volumes:
  postgres_data: