使用 Docker 在 Azure Durable Functions 中部署 Quart 应用程序时遇到问题

问题描述 投票:0回答:1

我正在尝试使用 Docker 将 python Quart 应用程序部署到 Azure 函数。下面是我的 Docker 文件。我的 Azure 功能无法启动。访问函数 URL 时出现“应用程序错误”。如果我能帮助验证我的 dockerfile 和 main 函数是否正确,我将不胜感激

Dockerfile:

FROM mcr.microsoft.com/azure-functions/python:4-python3.11
ENV AzureWebJobsScriptRoot=/home/site/wwwroot \    AzureFunctionsJobHost__Logging__Console__IsEnabled=true# Copy the function app files to the appropriate location in the container
COPY . /home/site/wwwroot# Install dependencies
RUN pip install --upgrade pip
RUN pip install -r /home/site/wwwroot/requirements.txt
EXPOSE 8080

WrapperFuntion--> init.py:

import azure.functions as func
import azure.durable_functions as duf

from common_util.utilities import logger
from FlaskApp import flask-app
from quart import g


async def main(req: func.HttpRequest, mappingColumnsConfig: func.InputStream, starter: str, context: func.Context) -> func.HttpResponse:
    async with flask_app.app_context():
        
        g.client = duf.DurableOrchestrationClient(starter)
        g.mapping_columns_config = mappingColumnsConfig
        g.function_name = req.route_params["functionName"]
        
        
        response = await func.AsgiMiddleware(app=flask-app.asgi_app).handle_async(req, context)
        
        status_code = response.status_code
        headers = dict(response.headers)
        body = response.get_body()
        
        
        return func.HttpResponse(body, status_code=status_code, headers=headers)

FlaskApp--> init.py:

from quart import Quart
from quart_cors import cors


flask-app = Quart(__name__)
flask-app = cors(flask-app)


@app.post("/api/pets/upload-petdata")
async def upload_petdata_route():
    try:
        ----DB insert----

    except Exception as e:
    logger.error(f"Pets data inert operation failed")

我尝试使用 func start 运行该函数并运行它。但是,如果我尝试在本地使用 docker 运行该函数,我会收到“函数主机未运行”。如果我将容器直接部署到 Azure 函数,该函数将无法启动

docker flask azure-functions azure-durable-functions quart
1个回答
0
投票

访问函数 URL 时出现“应用程序错误”。

如果该功能未正确部署,就会出现此错误。检查函数应用程序的 kudu 站点是否可以看到函数的所有文件。

我使用 Quart 创建了一个示例 Python Durable Azure 函数。

代码片段:

import azure.durable_functions as duf
import azure.functions as func
from quart import g

from flaskApp import flask_app

async def main(req: func.HttpRequest,  context: func.Context) -> func.HttpResponse:

    response = await func.AsgiMiddleware(app=flask_app.asgi_app).handle_async(req, context)
    
    status_code = response.status_code
    headers = dict(response.headers)
    body = response.get_body()

    return func.HttpResponse(body, status_code=status_code, headers=headers)

flaskApp=>init.py:

import azure.functions as func
from quart import Quart
from quart_cors import cors

flask_app = Quart(__name__)
flask_app = cors(flask_app)

@flask_app.post("/api/pets/upload-petdata")
async def upload_petdata_route():
    try:
     return {"message": "Pet data inserted successfully!"}, 200
    except Exception as e:
        return {"error": "Pets data insert operation failed"}, 500

Dockerfile:

FROM mcr.microsoft.com/azure-functions/python:4-python3.11

ENV AzureWebJobsScriptRoot=/home/site/wwwroot \
    AzureFunctionsJobHost__Logging__Console__IsEnabled=true

COPY requirements.txt /
RUN pip install -r /requirements.txt

COPY . /home/site/wwwroot

当地回应:

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在.

中添加所需的环境变量

部署到Azure:

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传送门:

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