# Docker Compose for local testing of PostgreSQL 18 + PostGIS image
# 
# Usage:
#   docker-compose -f docker-compose.test.yaml up -d
#   docker-compose -f docker-compose.test.yaml exec postgres psql -U postgres
#   docker-compose -f docker-compose.test.yaml down -v
#
# NOTE: PostgreSQL 18 changed the data directory path!
#   PG 13-17: /var/lib/postgresql/data
#   PG 18+:   /var/lib/postgresql
#
version: '3.8'

services:
  postgres:
    image: cnpg-postgis:18-3.6
    platform: linux/arm64
    container_name: postgis-test
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: testpassword
      POSTGRES_DB: testdb
    ports:
      - "5432:5432"
    volumes:
      # NOTE: PG18 uses /var/lib/postgresql (not /var/lib/postgresql/data)
      - postgres_data:/var/lib/postgresql
      - ./init-extensions.sql:/docker-entrypoint-initdb.d/20-extensions.sql:ro
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 10s
      timeout: 5s
      retries: 5

volumes:
  postgres_data: