Question

我正在设置一个flask开发环境，并希望我的flask服务器检测代码中的更改并自动重新加载。

我的项目结构是：

python-flask
    |--docker-compose.yml
    |--flask
    |   |--Dockerfile
    |   |--requirements.txt
    |   |--app.ini
    |   |--run.py
    |   |--app
    |       |--__init__.py
    |       |--app.py
    |--nginx
        |--Dockerfile
        |--nginx.conf

app.py

的代码

import os
from flask import Flask, session, g

app = Flask(__name__)


@app.route("/")
def index():
    # Use os.getenv("key") to get environment variables
    app_name = os.getenv("APP_NAME")

    if app_name:
        return f"Hello from {app_name} running in a Docker container behind Nginx!"

    return "Hello from Flask"


if __name__ == '__main__':
    app.run(debug=True, host='0.0.0.0')

这是我的 docker-compose.yml

version: "3.7"
services:
  flask:
    build: ./flask
    container_name: flask
    restart: always
    volumes:
      - ./flask/app:/app
    environment:
      - APP_NAME=MyFlaskApp
    expose:
      - 8080
  nginx:
    build: ./nginx
    container_name: nginx
    restart: always
    ports:
      - "80:80"

如Auto reloading flask server on Docker中所述，我在我的app.ini中添加了py-autoreload = 1。这是我的 app.ini

[uwsgi]
wsgi-file = run.py
callable = app
socket = :8080
processes = 4
threads = 2
master = true
chmod-socket = 660
vacuum = true
die-on-term = true
py-autoreload = 1

当我运行docker-compose up --build时，flask返回错误：

Starting nginx ... done
Attaching to flask, nginx
flask    | realpath() of app.ini failed: No such file or directory [core/utils.c line 3654]

我不确定如何解决此错误。我尝试将docker-compose.yml中的volume更改为./app:/app，但是错误仍然存在

在Docker上运行自动重新加载Flask应用程序时出错

0 个答案: