How to SSH in to different containers in Multi Container Azure App Service

Question

I want to SSH to my containers created in an Azure App Service. These are Linux based containers and used Docker Compose to deploy these to Azure App Service.

I have followed the article to enable SSH. For one of the container (Container A) I am able to SSH (exposed port 2222, 80 for this). But I would like to SSH to other containers (Container B) too. I have exposed another port 2223 for Container B and followed the same steps in that document. When I try to access them using the command ssh root@172.xx.x.x -p 2223, I get the error Connection Refused. But the command ssh root@172.xx.x.x -p 2222 works for the Container A and I am able to see the Dotnet process running for the API in that Container A when I run the Top command

Answer 1

After further research, I found out that we cannot SSH to multi container. Currently Azure supports SSH to public facing container only. Based on this link its planned by Azure App Service team!

Answer 2

This is still not supported in 2020. For further info you can also check with GitHub repo for App Service.

https://github.com/Azure/app-service-linux-docs

For SSH in multicontainer app service, you can't select a specific container to SSH to. It's not possible as of today. Always the front-facing container is picked up for SSH which is mostly at 80 port also if not then the first container in yaml file.

https://github.com/Azure/app-service-linux-docs/blob/master/how_multicontainer_webapp_determine_web_container.md

https://feedback.azure.com/forums/169385-web-apps/suggestions/34743265-support-ssh-to-specific-container-in-multi-contain

This is the thread from product owner in late 2018. Seems like they still haven't approved that functionality.

How to SSH in to different containers in Multi Container Azure App Service