那些遇到过的问题

客户端向 HTTPS 服务器发送 HTTP 请求

Ism*_*a90 5 python https docker influxdb kubernetes

我有一个在虚拟机上运行的 python 应用程序，这是一个遗留问题，现在我正在迁移到 Kubernetes。

我使用influxdb==5.2.3包，连​​接到这个表单Influx(host=r'influx_HOST', port=8086, username='MY_USER', password='***', database='DB_NAME', ssl=True)。这个python脚本使用SSL证书调用InfluxBD，当我直接运行时使用python app.py效果很好，但是，问题是：

 我 dockerized 脚本显示了以下错误。

Traceback (most recent call last):
  File "app.py", line 591, in <module>
    get_horas_stock()
  File "app.py", line 513, in get_horas_stock
    df_temp = influx_temperatura.multiple_query_to_df(queries_temperatura)
  File "/usr/src/app/analitica_py_lib_conexiones/conexion_influx.py", line 82, in multiple_query_to_df
    resultado = self.__cliente.query(";".join(queries))
  File "/usr/local/lib/python3.8/site-packages/influxdb/client.py", line 445, in query
    response = self.request(
  File "/usr/local/lib/python3.8/site-packages/influxdb/client.py", line 302, in request
    raise InfluxDBClientError(response.content, response.status_code)
influxdb.exceptions.InfluxDBClientError: 400: Client sent an HTTP request to an HTTPS server.
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我了解到，从容器内部，脚本使用 https 调用 Influx，但我认为连接使用 Http 重定向到容器外部并丢失了所有 SSL 配置，为什么？我不知道。

我测试部署在 Kubernetes 上

我试图在 Kubernetes 上部署，认为我遇到了同样的错误，但它已经改变了。

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/urllib3/response.py", line 360, in _error_catcher
    yield
  File "/usr/local/lib/python3.8/site-packages/urllib3/response.py", line 442, in read
    data = self._fp.read(amt)
  File "/usr/local/lib/python3.8/http/client.py", line 454, in read
    n = self.readinto(b)
  File "/usr/local/lib/python3.8/http/client.py", line 498, in readinto
    n = self.fp.readinto(b)
  File "/usr/local/lib/python3.8/socket.py", line 669, in readinto
    return self._sock.recv_into(b)
ConnectionResetError: [Errno 104] Connection reset by peer

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/requests/models.py", line 750, in generate
    for chunk in self.raw.stream(chunk_size, decode_content=True):
  File "/usr/local/lib/python3.8/site-packages/urllib3/response.py", line 494, in stream
    data = self.read(amt=amt, decode_content=decode_content)
  File "/usr/local/lib/python3.8/site-packages/urllib3/response.py", line 459, in read
    raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
  File "/usr/local/lib/python3.8/contextlib.py", line 131, in __exit__
    self.gen.throw(type, value, traceback)
  File "/usr/local/lib/python3.8/site-packages/urllib3/response.py", line 378, in _error_catcher
    raise ProtocolError('Connection broken: %r' % e, e)
urllib3.exceptions.ProtocolError: ("Connection broken: ConnectionResetError(104, 'Connection reset by peer')", ConnectionResetError(104, 'Connection reset by peer'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "app.py", line 591, in <module>
    get_horas_stock()
  File "app.py", line 513, in get_horas_stock
    df_temp = influx_temperatura.multiple_query_to_df(queries_temperatura)
  File "/usr/src/app/analitica_py_lib_conexiones/conexion_influx.py", line 82, in multiple_query_to_df
    resultado = self.__cliente.query(";".join(queries))
  File "/usr/local/lib/python3.8/site-packages/influxdb/client.py", line 445, in query
    response = self.request(
  File "/usr/local/lib/python3.8/site-packages/influxdb/client.py", line 274, in request
    response = self._session.request(
  File "/usr/local/lib/python3.8/site-packages/requests/sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python3.8/site-packages/requests/sessions.py", line 686, in send
    r.content
  File "/usr/local/lib/python3.8/site-packages/requests/models.py", line 828, in content
    self._content = b''.join(self.iter_content(CONTENT_CHUNK_SIZE)) or b''
  File "/usr/local/lib/python3.8/site-packages/requests/models.py", line 753, in generate
    raise ChunkedEncodingError(e)
requests.exceptions.ChunkedEncodingError: ("Connection broken: ConnectionResetError(104, 'Connection reset by peer')", ConnectionResetError(104, 'Connection reset by peer'))
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不知道是否与之前的错误有关。

在此处输入图片说明

已编辑

文件

FROM python:3.8.2-buster

WORKDIR /usr/src/app

COPY . .

RUN pip install --no-cache-dir -r requirements.txt

EXPOSE 8080

CMD ["python", "app.py"]
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Kubernetes 部署 YML

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-ms
spec:
  replicas: 1
  selector:
    matchLabels:
      ip-service: my-ms
  template:
    metadata:
      labels:
        ip-service: my-ms
    spec:
      containers:
        - name: my-ms
          image: myprivate.azurecr.io/my-ms:latest
          ports:
            - containerPort: 8080
          resources:
            requests:
              cpu: 100m
              memory: 10Mi
      imagePullSecrets:
        - name: tecnoregistry
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编辑 2

我在 Kubernetes 上遇到了同样的错误，但是在本地运行脚本，我在 service call 中将 SSL 值从 True 更改为 False Influx(host=r'influx_HOST', port=8086, username='MY_USER', password='***', database='DB_NAME', ssl=False)。

~$ python3 app.py
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/urllib3/response.py", line 360, in _error_catcher
    yield
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/urllib3/response.py", line 442, in read
    data = self._fp.read(amt)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 457, in read
    n = self.readinto(b)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 501, in readinto
    n = self.fp.readinto(b)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/socket.py", line 589, in readinto
    return self._sock.recv_into(b)
ConnectionResetError: [Errno 54] Connection reset by peer

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/requests/models.py", line 750, in generate
    for chunk in self.raw.stream(chunk_size, decode_content=True):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/urllib3/response.py", line 494, in stream
    data = self.read(amt=amt, decode_content=decode_content)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/urllib3/response.py", line 459, in read
    raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/contextlib.py", line 130, in __exit__
    self.gen.throw(type, value, traceback)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/urllib3/response.py", line 378, in _error_catcher
    raise ProtocolError('Connection broken: %r' % e, e)
urllib3.exceptions.ProtocolError: ("Connection broken: ConnectionResetError(54, 'Connection reset by peer')", ConnectionResetError(54, 'Connection reset by peer'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "app.py", line 1272, in <module>
    generate_excels_consumo()
  File "/Volumes/DATA/IdeaProjects/australia/analitica_py_sw_recolect_info/calculo_excels.py", line 206, in generate_excels_consumo
    df_sector = influx_kpis.multiple_query_to_multiple_df(queries)
  File "/Volumes/DATA/IdeaProjects/australia/analitica_py_sw_recolect_info/analitica_py_lib_conexiones/conexion_influx.py", line 126, in multiple_query_to_multiple_df
    resultado = self.__cliente.query(";".join(query))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/influxdb/client.py", line 450, in query
    expected_response_code=expected_response_code
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/influxdb/client.py", line 283, in request
    timeout=self._timeout
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/requests/sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/requests/sessions.py", line 686, in send
    r.content
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/requests/models.py", line 828, in content
    self._content = b''.join(self.iter_content(CONTENT_CHUNK_SIZE)) or b''
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/requests/models.py", line 753, in generate
    raise ChunkedEncodingError(e)
requests.exceptions.ChunkedEncodingError: ("Connection broken: ConnectionResetError(54, 'Connection reset by peer')", ConnectionResetError(54, 'Connection reset by peer'))
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小智 4

这似乎是一个网络问题。由于 Proxy，我在连接 MongoDB 时遇到了类似的问题。

默认情况下，Docker 运行的每个容器都有自己的网络命名空间。

提供一些解决方法：

  1. traceroute <cluster-ip>执行此命令并检查是否到达容器内部的集群附加容器并执行该命令docker exec -it container /bin/bash。
  2. 检查代理。export检查与代理相关的环境变量。
  3. curl www.google.com
  4. 尝试连接集群中的其他事物。例如MySQL等（有一次机器自动给我写黑名单，我尝试解决连接问题2天）
  5. 尝试使用 python-slim 图像。slim 镜像基于 ubuntu。

对于理解和解决docker连接问题来说是非常好的文档。

https://pythonspeed.com/articles/docker-connection-refused/

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