问题描述
大家好,您好, 我是Docker的新手,在部署Flask应用程序时遇到很多问题。 我的Dockerfile:
# For more information,please refer to https://aka.ms/vscode-docker-python
FROM ubuntu:20.04
EXPOSE 5000
# Keeps Python from generating .pyc files in the container
ENV PYTHONDONTWRITEBYTECODE 1
# Turns off buffering for easier container logging
ENV PYTHONUNBUFFERED 1
# Install pip requirements
RUN apt-get update && apt-get install -y python3-pip unixodbc-dev python3-dev
ADD requirements.txt .
RUN pip3 install -r requirements.txt
RUN pip3 install flask-restful
RUN pip3 install werkzeug
workdir /app
ADD . /app
# Switching to a non-root user,please refer to https://aka.ms/vscode-docker-python-user-rights
RUN useradd appuser && chown -R appuser /app
USER appuser
# During debugging,this entry point will be overridden. For more information,please refer to https://aka.ms/vscode-docker-python-debug
CMD ["gunicorn","--bind","127.0.0.1:5000","main:app"]
Docker-compose:
version: '3.4'
services:
tutorial:
image: tutorial
build:
context: .
dockerfile: Dockerfile
ports:
- 5000:5000
main.py:
api.add_resource(Video,"/videos/<int:video_id>")
if __name__=='__main__':
app.run(host="127.0.0.1",port=5000,debug=False)
一个主要问题是,当容器在本地主机上本地运行时,我无法从容器中获得休养权。
在我的docker日志中,我看到gunicorn
在听port 5000
[2020-10-09 14:20:19 +0000] [1] [INFO] Starting gunicorn 20.0.4
[2020-10-09 14:20:19 +0000] [1] [INFO] Listening at: http://127.0.0.1:5000 (1)
[2020-10-09 14:20:19 +0000] [1] [INFO] Using worker: sync
[2020-10-09 14:20:19 +0000] [7] [INFO] Booting worker with pid: 7
但是根据终端的信息,我看到我的容器端口打开了。但是它没有绑定,因为它在docker-compose文件ports:- 5000:5000.
中指定了
C:\Users\fele>docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f3e0bfae76ec containerregistr.azurecr.io/restvideoshop:1 "gunicorn --bind 127…" 5 hours ago Up 33 seconds 5000/tcp beautiful_chatterjee
此外,如果我打开Windows docker桌面并检查我的容器,我会看到一个端口以未绑定状态打开。
所以当我运行test.py
import requests
BASE="http://127.0.0.1:5000/"
data=[{"name":"Duke Nuken","views":1000,"likes":10},{"name":"Never Again","views":20,"likes":80},{"name":"Belarus","views":500,"likes":70}]
for i in range(len(data)):
response=requests.put(BASE+"videos/"+str(i),data[i])
print(response.json())
我在终端中看到以下日志:
requests.exceptions.ConnectionError: httpconnectionPool(host='127.0.0.1',port=5000): Max retries exceeded with url: /videos/0 (Caused by NewConnectionError('<urllib3.connection.httpconnection object at 0x02FB8C30>: Failed to establish a new connection: [WinError 10061] Es konnte keine Verbindung hergestellt werden,da der Zielcomputer
die Verbindung verweigerte'))
任何人都可以提出建议并告诉我为什么我无法从容器中得到答复吗?我应该在docker-compose文件中进行任何其他配置还是为gunicorn设置一些其他代码吗?另一个问题与docker不直接相关,我计划在Azure容器实例中部署容器,因此是否需要在容器内使用Nginx还是Azure本身可以通过Nginx完成事情? 预先感谢
解决方法
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