Phoenix app in a Docker container is filling log with this in production on an Azure Web App.

Another post suggested hackney and httpoison is causing it.

How can I find the cause of the errors?

I can ssh to the container and run /app/bin/app_name remote to start iex.

Do I need to create a ssh tunnel to remote debug the node?

In the container I can run: /app/erts-13.2.2/bin/epmd -names to find the remote port
epmd: up and running on port 4369 with data:
name app_name at port 40699

2023-08-27T11:00:31.165568384Z 11:00:31.165 [error] GenServer #PID<0.7281.0> terminating

2023-08-27T11:00:31.165607985Z ** (stop) :tcp_closed

2023-08-27T11:00:31.165614385Z Last message: {:tcp_closed, #Port<0.1783>}

2023-08-27T11:00:44.382799422Z 11:00:44.382 [error] GenServer #PID<0.7294.0> terminating

2023-08-27T11:00:44.382851424Z ** (stop) :tcp_closed

2023-08-27T11:00:44.382857724Z Last message: {:tcp_closed, #Port<0.1787>}

2023-08-27T11:00:50.868232946Z 11:00:50.867 [error] GenServer #PID<0.7306.0> terminating

2023-08-27T11:00:50.868293847Z ** (stop) :tcp_closed

2023-08-27T11:00:50.868302347Z Last message: {:tcp_closed, #Port<0.1791>}

2023-08-27T11:00:55.510507526Z 11:00:55.509 [error] GenServer #PID<0.7318.0> terminating

2023-08-27T11:00:55.510555327Z ** (stop) :tcp_closed

2023-08-27T11:00:55.510560527Z Last message: {:tcp_closed, #Port<0.1795>}