Google云端控制台-Flask-main.py与数据包 [英] Google Cloud Console - Flask - main.py vs package

问题描述

好的，所以我已经完成了一些教程，可以将Flask应用程序安装到Google云上，这很好.

我还通过了Flask教程来建立一个flaskr博客: http://flask.pocoo.org/docs/1.0/tutorial/

在我看来，明智的做法是在Google上创建一个数据库(在mycase中为MySQL)，然后修改代码以使其使用它.很好，我可以在本地计算机上使用它.

但是，现在我要部署它了，我遇到了一个问题.

google cloud教程倾向于使用在单个文件(例如main.py)中启动的flask应用程序，例如:

从烧瓶导入烧瓶中的

 ，render_templateapp = Flask(__ name__).... 

上面提到的烧瓶教程使用一个包，并将代码放入__init__.py文件中的create_app()，目前我无法以相同的方式启动它.(请参见示例代码).

从烧瓶导入烧瓶的

 def create_app(test_config = None):#创建和配置应用app = Flask(__ name__，instance_relative_config = True)app.config.from_mapping(SECRET_KEY ='dev') 

我是否需要对诸如app.yaml文件之类的内容进行一些调整，以使其将flask识别为flaskr软件包，或者我是否需要重写整个内容以便它使用main.py文件?/p>

我觉得这是我可以真正养成不良习惯的时间点之一.一般来说，在Google Cloud上编写Flask应用程序的首选方式是什么?

我正在使用google中的标准环境.

感谢您的建议.

标记

解决方案

由于拥有应用程序工厂，因此您可以在任何地方创建应用程序.只需在 main.py 中创建它，因为这是App Engine期望的:

从my_package导入

 导入create_appapp = create_app() 

OK, so I have been through some tutorials to get a flask app onto google cloud, which is fine.

I have also been through the flask tutorial to build a flaskr blog: http://flask.pocoo.org/docs/1.0/tutorial/

It occurred to me that a sensible thing to do would be to create a database (MySQL in mycase) on google and then modify the code so that it uses that. This is fine and I can get it to work on my local machine.

However, now that I am coming to deploying this, I have hit a problem.

The google cloud tutorials tend to use a flask app that is initiated in a single file such as main.py, eg:

from flask import Flask, render_template

app = Flask(__name__)
....

The flask tutorial mentioned above uses a package and puts the code to create_app() in the __init__.py file and at present I cannot get this to start in the same way. (see sample code).

from flask import Flask

def create_app(test_config=None):
    # create and configure the app
    app = Flask(__name__, instance_relative_config=True)
    app.config.from_mapping(
        SECRET_KEY='dev'
    )

Are there some adjustments that I need to make to something like the app.yaml file to get it to recognise flask as the flaskr package or do I need to rewrite the whole thing so that it uses a main.py file ?

I feel that this is one of the points in time where I could really pick up a bad habit. What in general is the preferred way to write flask apps on google cloud ?

I am using the standard environment in google.

Thanks for your advice.

Mark

解决方案

Since you have an application factory, you can create the app anywhere. Just create it in main.py, since this is what App Engine expects:

from my_package import create_app

app = create_app()

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