Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
8,930 questions
how to deploy a FastAPI python app to Azure App Service Web App (Linux) from a Windows machine running VSCode
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(112.00000000000001, 11%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENK%3C/text%3E%3C/svg%3E)
Nick Katsivelos
0
Reputation points
I have been tryring for days to get a simple deployment of a basic API written in python using FastAPI. I cannot get it to run. all sorts of errors. I have literally spent two days with CoPilot, GPT 1o Mini and Sonnet 3.5 and have not gotten it solved - using github actions and a publishing profile. build runs fine it dies in deployment. Github action ofter shows success, but accessing the site results in a 503
Azure App Service
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(304, 61%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELR%3C/text%3E%3C/svg%3E)
Laxman Reddy Revuri 5,395 Reputation points Microsoft External Staff Moderator2025-01-06T16:58:10.5033333+00:00 Hi @Nick Katsivelos
Thanks for the question and using MS Q&A platform.
A 503 Service Unavailable error can happen due to scaling problems, running out of resources, or incorrect settings. To fix it, check your app's scaling options, resource usage, and how it manages resources.
Fix HTTP 502 and HTTP 503 errors - Azure App Service | Microsoft Learn
Kindly check if the server is experiencing heavy traffic and consider scaling up resources, if required.Verify whether any scheduled maintenance activities might be causing temporary downtime.
Review the logs for any errors or warnings that could help identify potential issues in the application.
In case of resource exhaustion, restarting the processes or rebooting the server could help restore the service.
Ensure that firewall settings are correctly configured and are not unintentionally blocking legitimate traffic to the application.
Publish Python web app to Azure App Service on Linux - Visual Studio (Windows) | Microsoft Learn
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Laxman Reddy Revuri 5,395 Reputation points Microsoft External Staff Moderator
2025-01-08T04:27:11.58+00:00 Hi @Nick Katsivelos
Following up to see if you have chance to check my previous response and help us with requested information to check and assist you further on this. -
Nick Katsivelos 0 Reputation points
2025-01-08T12:20:23.11+00:00 your answer was not helpful at all.. i know how to search for the documentation - the documentation is the problem. i wantvreal code - a project on github - that i can run and can serve as the foundation for projects.
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Laxman Reddy Revuri 5,395 Reputation points Microsoft External Staff Moderator
2025-01-13T16:58:00.92+00:00 Hi @Nick Katsivelos
Apologize for any inconvenience caused on this.
Fast API Deployment Project: This repository demonstrates the integration of Elasticsearch with FastAPI, allowing users to perform CRUD operations on documents stored in Elasticsearch. It includes a detailed README with installation and usage instructions.
https://github.com/rachitt/fastapi-deployment
Full Stack FastAPI Template: This project template includes FastAPI, React, SQLModel, PostgreSQL, Docker, GitHub Actions, and automatic HTTPS. It's a comprehensive template for modern web applications.
https://github.com/Maystra/fastapi-nextjs-template
FastAPI + Next.js Project Template: This template repository includes essentials for a small non-commercial project using FastAPI and Next.js. It also supports GitHub Actions for automatic deployment.
https://github.com/svidpro/full-stack-fastapi-template-diploma-work/blob/master/deployment.md -
Laxman Reddy Revuri 5,395 Reputation points Microsoft External Staff Moderator
2025-01-16T11:07:40.4+00:00 Hi @Nick Katsivelos
Following up to see if you have chance to check my previous response and help us with requested information to check and assist you further on this. -
Laxman Reddy Revuri 5,395 Reputation points Microsoft External Staff Moderator
2025-01-20T04:51:56.2366667+00:00 Hi @Nick Katsivelos
Following up to see if you have chance to check my previous response and help us with requested information to check and assist you further on this.
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