我正在尝试使用cli rabbitmqadmin连接到远程rabbitmq主机。
我尝试执行的命令是：

rabbitmqadmin --host=$RABBITMQ_HOST --port=443 --ssl --vhost=$RABBITMQ_VHOST --username=$RABBITMQ_USERNAME --password=$RABBITMQ_PASSWORD list queues

在您提问之前：环境变量RABBITMQ_HOST、RABBITMQ_VHOST等已设置......我已经反复检查了这一点。
返回的错误是：

Traceback (most recent call last):
File "/usr/local/sbin/rabbitmqadmin", line 1007, in <module>
main()
File "/usr/local/sbin/rabbitmqadmin", line 413, in main
method()
File "/usr/local/sbin/rabbitmqadmin", line 588, in invoke_list
format_list(self.get(uri), cols, obj_info, self.options)
File "/usr/local/sbin/rabbitmqadmin", line 436, in get
return self.http("GET", "%s/api%s" % (self.options.path_prefix, path), "")
File "/usr/local/sbin/rabbitmqadmin", line 475, in http
self.options.port)
File "/usr/local/sbin/rabbitmqadmin", line 451, in __initialize_https_connection
context = self.__initialize_tls_context())
File "/usr/local/sbin/rabbitmqadmin", line 467, in __initialize_tls_context
self.options.ssl_key_file)

TypeError: coercing to Unicode: need string or buffer, NoneType found

从最后一行我假设这是一个与python相关的问题，我当前的python版本是2.7.12，如果我尝试连接到rabbitmq的本地示例

rabbitmqadmin list queues

一切正常。任何帮助都非常感谢，谢谢：）