pip install certbot-dns-aliyun timeout

[ykrank]

When restart NPM, will always recall pip install certbot-dns-aliyun~=0.38.1, but this command always timeout fail for several times. After 5 or more times retry, this will be success. I think the reason for this phenomenon is that the current network speed is too slow and the pip timeout time is too short （15seconds）. So we need to add an environment variable to change the pip timeout time and add a proxy for pip.

raceback (most recent call last):
  File "/opt/certbot/lib/python3.11/site-packages/pip/_internal/cli/base_command.py", line 180, in exc_logging_wrapper
    status = run_func(*args)
             ^^^^^^^^^^^^^^^
  File "/opt/certbot/lib/python3.11/site-packages/pip/_internal/cli/req_command.py", line 245, in wrapper
    return func(self, options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/certbot/lib/python3.11/site-packages/pip/_internal/commands/install.py", line 377, in run
    requirement_set = resolver.resolve(
                      ^^^^^^^^^^^^^^^^^
  File "/opt/certbot/lib/python3.11/site-packages/pip/_internal/resolution/resolvelib/resolver.py", line 179, in resolve
    self.factory.preparer.prepare_linked_requirements_more(reqs)
  File "/opt/certbot/lib/python3.11/site-packages/pip/_internal/operations/prepare.py", line 552, in prepare_linked_requirements_more
    self._complete_partial_requirements(
  File "/opt/certbot/lib/python3.11/site-packages/pip/_internal/operations/prepare.py", line 467, in _complete_partial_requirements
    for link, (filepath, _) in batch_download:
  File "/opt/certbot/lib/python3.11/site-packages/pip/_internal/network/download.py", line 183, in __call__
    for chunk in chunks:
  File "/opt/certbot/lib/python3.11/site-packages/pip/_internal/network/utils.py", line 63, in response_chunks
    for chunk in response.raw.stream(
  File "/opt/certbot/lib/python3.11/site-packages/pip/_vendor/urllib3/response.py", line 622, in stream
    data = self.read(amt=amt, decode_content=decode_content)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/certbot/lib/python3.11/site-packages/pip/_vendor/urllib3/response.py", line 560, in read
    with self._error_catcher():
  File "/usr/lib/python3.11/contextlib.py", line 155, in __exit__
    self.gen.throw(typ, value, traceback)
  File "/opt/certbot/lib/python3.11/site-packages/pip/_vendor/urllib3/response.py", line 443, in _error_catcher
    raise ReadTimeoutError(self._pool, None, "Read timed out.")
pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out.

[8/22/2024] [5:45:35 PM] [Global   ] › ✖  error     Some plugins failed to install. Please check the logs above

[8/22/2024] [5:45:36 PM] [Certbot  ] › ▶  start     Installing aliyun...
[8/22/2024] [5:45:36 PM] [Global   ] › ⬤  debug     CMD: . /opt/certbot/bin/activate && pip install --no-cache-dir  certbot-dns-aliyun~=0.38.1  && deactivate
[8/22/2024] [5:47:32 PM] [Certbot  ] › ☒  complete  Installed aliyun