services:
  postgres:
    image: 'postgres:18-alpine'
    restart: 'always'
    shm_size: 128mb
    environment:
      POSTGRES_DB: post3_dev
      POSTGRES_USER: devuser
      POSTGRES_PASSWORD: devpassword
    ports:
      - '5435:5432'
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U devuser -d post3_dev"]
      interval: 5s
      timeout: 5s
      retries: 5