How to allow websocket connetion in my Azure App Service wit Code publish mode?

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How to allow websocket connetion in my Azure App Service wit Code publish mode?

Dengke Qi 20 Microsoft External Staff

I have created an Azure App Service in Code Publish mode. When I deploy a Flask server with port of 8000 in this app service, it works. But when I deploy a Flask-WebSocket server with port of 8000, the server starts successfully, but I can't get WebSocket connection in local with the app service. I wonder if the WebSocket connection can be translate from port of 443 to the port of 8000, and I want to open the port of 8000 in my App Service to resolve this issue.

So, what should I do to get the WebSocket connection from my App Service? Open the port of 8000, or other network setting in my App service?

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Answer 1

Deepanshukatara-6769 16,565 Moderator

Hello , Welcome to MS Q&A

To enable WebSocket connections in Azure App Service, make sure the WebSocket protocol is activated in your App Service settings. Azure App Service restricts opening custom ports like 8000 for external access. Instead, configure your application to listen on the default ports—80 for HTTP and 443 for HTTPS—and manage WebSocket connections through these ports.

To enable the WebSocket protocol in your Azure App Service, follow these steps:

Access the Azure Portal: Navigate to the Azure portal and locate your App Service.

Go to Configuration: In the App Service menu, select the "Configuration" option.

Enable WebSocket: Under the "General settings" tab, find the "WebSocket" option and ensure it is set to "On".

This setting allows your App Service to support WebSocket connections. Make sure your application is also configured to handle WebSocket connections properly. If you need further assistance, refer to the Azure documentation on WebSocket support.

Please let me know if you have any further questions

Kindly accept answer if it helps

Thanks

Deepanshu

Dengke Qi 20 Reputation points Microsoft External Staff

2025-02-17T07:45:36.07+00:00

Thanks a lot for your help. But I can't find the Websocket information in my Setting page. And I see a log of my app service:
docker run -d --expose=8000 --name my_service_name -e WEBSITE_USE_DIAGNOSTIC_SERVER=false -e WEBSITE_AUTH_ENABLED=False -e WEBSITE_ROLE_INSTANCE_ID=0 appsvc/python:3.12_20250121.5.tuxprod REDACTED.
I 'm not sure, whether it works if I change the port of my service to 443 or 80.
Can you give me some other advice? Thanks very much!
Dengke Qi 20 Reputation points Microsoft External Staff

2025-02-17T07:59:14.2533333+00:00

Thanks a lot. But I can't find Websocket information in my setting page.
And it does not work, even I change the port of 8000 to 443 or 80 in my websocket service. Here is some log when my app service starts:
docker run -d --expose=8000 --name myservicename -e WEBSITE_USE_DIAGNOSTIC_SERVER=false -e WEBSITE_AUTH_ENABLED=False -e WEBSITE_ROLE_INSTANCE_ID=0 appsvc/python:3.12_20250121.5.tuxprod REDACTED.
Can you give me some other advice? Thanks very much!
Deepanshukatara-6769 16,565 Reputation points Moderator

2025-02-17T08:06:56.19+00:00

Kindly check I can see the web socket.
Dengke Qi 20 Reputation points Microsoft External Staff

2025-02-17T09:48:05.5866667+00:00

Yes, I see the Web sockets setting in your picture, but I still can't find it in my App service setting. Really appreciate for your help, I find some way to config it with AzureCli: az webapp config set --web-sockets-enabled true --name MyAppName --resource-group MyResourceGroup. Finally I enable the Web socket, and now I can get the connection. Thanks very much!
Dengke Qi 20 Reputation points Microsoft External Staff

2025-02-17T09:48:37.23+00:00

Yes, I see the Web sockets setting in your picture, but I still can't find it in my App service setting. Really appreciate for your help, I find some way to config it with AzureCli: az webapp config set --web-sockets-enabled true --name MyAppName --resource-group MyResourceGroup. Finally I enable the Web socket, and now I can get the connection. Thanks very much!
Tyler Suard 0 Reputation points

2025-06-23T03:27:25.16+00:00

My web app does not have a Websockets setting in its Configuration--> General Settings tab.

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How to allow websocket connetion in my Azure App Service wit Code publish mode?

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