Application Error while deploying flask app to Azure

Question

I am trying to deploy flask based app to Azure. The app is working fine locally but I get Application error on Azure.

I checked the docker logs and found that container does'nt respond to the port. I have tried changing port by configuring WEBSITE_PORT, still same issue. enter image description here

Welcome to Stack Overflow. You need to include a bit more information. As in how you're setting up the flask app. How it's deployed. — ewong, May 05 '22 at 05:36
This is due to the Azure Web App's limitation of only supporting port 80 and 443. — HarshithaVeeramalla-MT, May 05 '22 at 06:11

score 0 · Answer 1 · answered May 05 '22 at 11:54

In Azure Portal = > Your Web App => Configuration => Application Settings ,

Add the WEBSITES_PORT app setting with a value of "8000" to expose that port.

Use the EXPOSE instruction in your Dockerfile to expose port 8000.
You can increase the start time restriction if your container takes a long time to start. Default time is 230 seconds for starting the container.
To configure , add an app setting WEBSITES_CONTAINER_START_TIME_LIMIT and set it to the number of seconds you would like to wait for your container to start (max of 1800 sec )

If the container starts but does not respond to a ping, we will eventually log an event in the Docker log saying that it didn't start.
Access the docker logs at https://.scm.azurewebsites.net/api/logs/docker/zip for any runtime errors

Please refer SO Thread

Hey @Palash Pathak ! had it solved your problem else you can share more details so I can troubleshoot? — HarshithaVeeramalla-MT, May 30 '22 at 03:41

Application Error while deploying flask app to Azure

1 Answers1