Docker客户端连接中的Python - tlsv1警报协议版本错误 [英] Python - tlsv1 alert protocol version error in Docker client connection
问题描述
我使用的是 Docker-py 和 dockerpty ,以便 exec
使用 Docker的命令
Python API。
I'm using Docker-py and dockerpty in order to exec
commands using the Docker
Python API.
代码很简单:
container = client.inspect_container(containerId)[0]
dockerpty.exec_command(client, container, command)
我想执行命令,例如 echo'hello'
它工作正常。但是,尽管我能够获得终端,但是导致以下错误:
When I want to execute commands such as echo 'hello'
it works fine. However, commands like /bin/bash
, even though I'm able to get the terminal, it is causing the following error:
ubuntu:test$ python main.py exec [containerid] /bin/bash
root@so1:/opt/apache# Traceback (most recent call last):
File "__main__.py", line 216, in <module>
main()
File "__main__.py", line 201, in main
ec.execute()
dockerpty.exec_command(client, container, command)
File "/usr/local/lib/python2.7/site-packages/dockerpty/__init__.py", line 44, in exec_command
PseudoTerminal(client, operation).start()
File "/usr/local/lib/python2.7/site-packages/dockerpty/pty.py", line 334, in start
self._hijack_tty(pumps)
File "/usr/local/lib/python2.7/site-packages/dockerpty/pty.py", line 373, in _hijack_tty
pump.flush()
File "/usr/local/lib/python2.7/site-packages/dockerpty/io.py", line 367, in flush
read = self.from_stream.read(n)
File "/usr/local/lib/python2.7/site-packages/dockerpty/io.py", line 120, in read
return self.fd.recv(n)
File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/contrib/pyopenssl.py", line 194, in recv
data = self.connection.recv(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1302, in recv
self._raise_ssl_error(self._ssl, result)
File "/usr/local/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1172, in _raise_ssl_error
_raise_current_error()
File "/usr/local/lib/python2.7/site-packages/OpenSSL/_util.py", line 48, in exception_from_error_queue
raise exception_type(errors)
OpenSSL.SSL.Error: [('SSL routines', 'ssl3_read_bytes', 'tlsv1 alert protocol version')]
当我创建客户端时,我指定 tls_config
使用 tlsv1.2
:
When I create the client, I specify the tls_config
to use tlsv1.2
:
tls_config = docker.tls.TLSConfig(
client_cert=(cert, key),
ssl_version=ssl.PROTOCOL_TLSv1_2,
)
client = docker.Client(base_url=url, timeout=timeout,
tls=tls_config, user_agent=user_agent)
为什么我得到这个'tlsv1警报协议版本
错误,如何解决?
Why am I getting this 'tlsv1 alert protocol version'
error, and how can I fix this?
推荐答案
在一些较旧版本的Python中, ssl.PROTOCOL_TLSv1_2
不可用。您可以通过尝试从容器内的Python控制台导入它来轻松检查:
In some older versions of Python, ssl.PROTOCOL_TLSv1_2
isn't available. You can easily check by attempting to import it from the Python console inside the container:
root@57c6d8b01861:/# python
Python 2.7.8 (default, Nov 26 2014, 22:28:51)
>>> import ssl
>>> ssl.PROTOCOL_TLSv1_2
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'PROTOCOL_TLSv1_2'
>>> ssl.PROTOCOL_TLSv1
3
如果是这种情况,请尝试在Docker图像中更新Python到> = 2.7.9
。
If this is the case, try updating Python in your docker image to >=2.7.9
.
还要确保 openssl
版本是> = 1.0.1
。
Also ensure that the openssl
version is >=1.0.1
.
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