Question

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

我使用influxdb==5.2.3软件包，连接到此表单Influx(host=r'influx_HOST', port=8086, username='MY_USER', password='***', database='DB_NAME', ssl=True)。此python脚本使用SSL证书调用InfluxBD，当我直接使用python app.py运行时，效果很好，但是问题是在以下情况出现：

我通过docker脚本向我显示了以下错误。

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.

我了解到，脚本从容器内部使用https调用Influx，但是我认为使用Http将连接重定向到容器外部，并且丢失了所有SSL配置，为什么？我不知道。

我测试过部署在Kubernetes上

我试图在Kubernetes上进行部署，以为我遇到了相同的错误，但是它已更改。

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'))

我不知道是否与先前的错误有关。

已编辑

Dockerfile

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"]

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

编辑2

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

Answer 1

似乎是网络问题。由于代理，我遇到了与MongoDB连接的笑脸问题。一切都可能发生此问题。

默认情况下，由Docker运行的每个容器都有其自己的网络名称空间。

提供一些解决方法：

traceroute <cluster-ip>执行此命令，并检查是否到达容器附加容器内的集群并执行命令docker exec -it container /bin/bash。
检查代理。 export检查与代理相关的环境变量。
curl www.google.com
尝试连接集群中的其他设备。例如MySQL等。（一旦机器自动将我写成黑名单，我试图在2天之内解决连接问题）
尝试使用python-slim图片。超薄图像来自ubuntu。

了解和解决docker连接问题是非常好的文档。

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

客户端向HTTPS服务器发送了HTTP请求

我通过docker脚本向我显示了以下错误。

我测试过部署在Kubernetes上

已编辑

编辑2

1 个答案: