database.json

{
    "defaultEnv":{"ENV": "NODE_ENV"},
    "dev": {
      "driver": {
        "ENV": "DB_DRIVER"
      },
      "host": {
        "ENV": "HOST_DEV"
      },
      "database": {
        "ENV": "DB_DEV"
      },
      "user": {
        "ENV": "USER_DEV"
      },
      "password": {
        "ENV": "PASSWORD_DEV"
      }
    },
    "test": {
      "driver": {
        "ENV": "DB_DRIVER"
      },
      "host": {
        "ENV": "HOST_TEST"
      },
      "database": {
        "ENV": "DB_TEST"
      },
      "user": {
        "ENV": "USER_TEST"
      },
      "password": {
        "ENV": "PASSWORD_TEST"
      }
    },
    "prod": {
      "driver": {
        "ENV": "DB_DRIVER"
      },
      "host": {
        "ENV": "HOST_PROD"
      },
      "database": {
        "ENV": "DB_PROD"
      },
      "user": {
        "ENV": "USER_PROD"
      },
      "password": {
        "ENV": "PASSWORD_PROD"
      }
    }
  }