尝试使用 cloudrun 实例上的 unix 套接字连接到 Google CloudSQL 时，如何获取 IAM 用户的用户名？

Question

I have the following code to get my username from a env var in a run instance using Java...

    String dbUser = Optional.ofNullable(System.getenv("DB_USER")).orElseGet(() -> {
        EXIT.accept("You must Provide a DB Username");
        return null;
    });

My main question is, since I am using IAM auth, is there a way I can get this username without having to use an Env Variable. Kind of like how the password can be empty.

Answer 1

As explained in the documentation , the username must be provided, not the password. The user access token act as validation of the user name account and grant the authorized users.