old_contents: SQLALCHEMY_DATABASE_URI = 'postgresql+psycopg2://postgres:postgres@dev_db_1/meerkat_db'
  API_KEY = "test-api"
  AUTH = {
      'default': [['registered'],['demo']]
  }
  
new_contents: SQLALCHEMY_DATABASE_URI = 'postgresql+psycopg2://postgres:postgres@db/meerkat_db'
  API_KEY = "test-api"
  AUTH = {'default': [['registered'], ['demo']]}
  
subject: Revise null island configs.