我得到了这个错误

py4j.protocol.Py4JJavaError: An error occurred while calling o38.jdbc. : java.lang.ClassNotFoundException: org.postgresql.Driver

Here is my docker-compose file
postgresdb:
    image: postgres:13
    ports:
      - '5432:5432'
    volumes:
      - type: bind
        source: ./data
        target: /opt/data
      - ./init.sql:/docker-entrypoint-initdb.d/init.sql  # create table customer
    environment:
      POSTGRES_DB: db
      POSTGRES_USER: test
      POSTGRES_PASSWORD: test

And this is how I config in pyspark
jdbc_url = "jdbc:postgresql://localhost:5432/db"
connection_properties = {
    "user": "test",
    "password": "test",
    "driver": "org.postgresql.Driver"
}

result.write.jdbc(url=jdbc_url, table="customers", mode="overwrite", properties=connection_properties)

我想知道如何解决这个问题。我需要在dockerfile中安装postgres13的jar文件吗？