public RabbitMQContainer withAdminUser(final String adminUsername) {
        this.adminUsername = adminUsername;
        return this;
    }
Sets the user for the admin (default is <pre>guest</pre>)

@param adminUsername The admin user.
@return This container.
modules/rabbitmq/src/main/java/org/testcontainers/containers/RabbitMQContainer.java