Golang：托管 VM 应用程序的预览返回错误

Question

我正在尝试使用 gcloud preview app run 命令预览 Go docker (App Engine ManagedVM) 应用。

但我不断收到此错误：

Traceback (most recent call last):
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 83, in <module>
    _run_file(__file__, globals())
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 79, in _run_file
    execfile(_PATHS.script_file(script_name), globals_)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 985, in <module>
    main()
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 978, in main
    dev_server.start(options)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 774, in start
    self._dispatcher.start(options.api_host, apis.port, request_data)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/dispatcher.py", line 182, in start
    _module, port = self._create_module(module_configuration, port)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/dispatcher.py", line 262, in _create_module
    threadsafe_override=threadsafe_override)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/module.py", line 1463, in __init__
    super(ManualScalingModule, self).__init__(**kwargs)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/module.py", line 514, in __init__
    self._module_configuration)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/module.py", line 237, in _create_instance_factory
    module_configuration=module_configuration)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/vm_runtime_factory.py", line 78, in __init__
    timeout=self.DOCKER_D_REQUEST_TIMEOUT_SECS)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/google/appengine/tools/docker/containers.py", line 740, in NewDockerClient
    client.ping()
  File "/Users/jwesonga/google-cloud-sdk/./lib/docker/docker/client.py", line 711, in ping
    return self._result(self._get(self._url('/_ping')))
  File "/Users/jwesonga/google-cloud-sdk/./lib/docker/docker/client.py", line 76, in _get
    return self.get(url, **self._set_request_timeout(kwargs))
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/lib/requests/requests/sessions.py", line 468, in get
    return self.request('GET', url, **kwargs)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/lib/requests/requests/sessions.py", line 456, in request
    resp = self.send(prep, **send_kwargs)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/lib/requests/requests/sessions.py", line 559, in send
    r = adapter.send(request, **kwargs)
  File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine/lib/requests/requests/adapters.py", line 384, in send
    raise Timeout(e, request=request)
requests.exceptions.Timeout: (<requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x10631c7d0>, 'Connection to 192.168.59.104 timed out. (connect timeout=60)')
ERROR: (gcloud.preview.app.run) DevAppSever failed with error code [1]

我已经使用 boot2docker status 确认 docker 已启动并运行，它返回 running 这在机器重新启动之前可以工作，但在机器重新启动之后，似乎没有任何工作。有什么想法吗？

Answer 1

主要问题是：

File "/Users/jwesonga/google-cloud-sdk/platform/google_appengine
       /lib/requests/requests/adapters.py", line 384, in send
    raise Timeout(e, request=request)
requests.exceptions.Timeout:   
(<requests.packages.urllib3.connection.VerifiedHTTPSConnection object 
at 0x10631c7d0>, 'Connection to 192.168.59.104 timed out. 
(connect timeout=60)')
ERROR: (gcloud.preview.app.run) DevAppSever failed with error code [1]

当您有代理时通常会出现这种情况，在pip issue 1805 中进行了讨论

应该在pip1.6中修复了，但以防万一，你可以试试workaround of alexandrem

/opt/venvs/ironic/lib/python2.6/site-packages/pip/_vendor/requests
/adapters.patch.py /opt/venvs/ironic/lib/python2.6/site-packages
/pip/_vendor/requests/adapters.py
209c209
if True or not proxy in self.proxy_manager:
   ^^^^

基本上我只是在 adapter.py 的第 209 行的条件中添加一个 True 以始终创建一个 ProxyManager 实例，从而跳过池管理器逻辑。

Answer 2

gcloud 命令启用 ah_host 进程并创建应用程序的 docker 映像并将其传递给 Docker 守护程序，在您的情况下，您的 docker 守护程序似乎没有响应请求。所以为了确保，执行“sudo docker -d”来检查 Docker 守护进程是否在你的机器上运行。 还要检查您设置正确的证书路径和 TLS_VERIFY 的值是否为 TRUE。

通过文档 [1] 在 MacOS 上安装 Docker

[1]https://docs.docker.com/installation/mac/