通过 Docker 部署的 Python 应用程序给出错误

Question

我有我正在部署的 python 应用程序。容器正在正确创建并且已启动并正在运行。但是服务器正在停止并抛出错误。

Dockerfile

FROM python:3.8

# set the working directory in the container
WORKDIR /usr/src/app

# copy the dependencies file to the working directory
COPY requirements.txt ./

# install dependencies
RUN pip install -r requirements.txt

# copy the content of the local src directory to the working directory
COPY . .

EXPOSE 8000

# command to run on container start

CMD ["python3", "apps/main.py", "start", "--config", "config.yml"]

我在日志中遇到的错误

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/sanic/server.py", line 556, in serve
    http_server = loop.run_until_complete(server_coroutine)
  File "uvloop/loop.pyx", line 1501, in uvloop.loop.Loop.run_until_complete
  File "uvloop/loop.pyx", line 1775, in create_server
OSError: [Errno 99] error while attempting to bind on address ('::1', 8000, 0, 0): cannot assign requested address
[2021-09-17 12:50:51 +0000] [97] [INFO] Server Stopped

如果我定义的 dockerfile 或 CMD 命令有任何问题，谁能解释一下。

第一次尝试将主机更新到 0.0.0.0 但不起作用。

错误：

[2021-09-17 15:02:24 +0000] [98] [INFO] Goin' Fast @ http://localhost:8000
[2021-09-17 15:02:24 +0000] [98] [DEBUG] Sanic auto-reload: enabled
[2021-09-17 15:02:24 +0000] [98] [DEBUG] Sanic debug mode: enabled
[2021-09-17 15:02:24 +0000] [98] [ERROR] Unable to start server
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/sanic/server.py", line 556, in serve
    http_server = loop.run_until_complete(server_coroutine)
  File "uvloop/loop.pyx", line 1501, in uvloop.loop.Loop.run_until_complete
  File "uvloop/loop.pyx", line 1775, in create_server
OSError: [Errno 99] error while attempting to bind on address ('::1', 8000, 0, 0): cannot assign requested address
[2021-09-17 15:02:24 +0000] [98] [INFO] Server Stopped

Answer 1

绑定到“0.0.0.0”（所有 NIC）似乎在将其硬编码到 app.start 函数后解决了该问题。 之前用来绑定ipv6 localhost地址(::1)