version: '3' services: db: image: postgres:latest environment: POSTGRES_PASSWORD: develop ports: - 5432:5432 pgadmin: image: dpage/pgadmin4 environment: PGADMIN_DEFAULT_EMAIL: admin@admin.com PGADMIN_DEFAULT_PASSWORD: root ports: - "8001:80" mailer: image: schickling/mailcatcher ports: [1025,1080]