HTTP_PORTS when running ASP.NET 8 container in AKS

In the logs of a ASP.NET 8 container I find this entry

[22:38:50 WRN] Overriding HTTP_PORTS '8080' and HTTPS_PORTS ''. Binding to values defined by URLS instead 'http://+:80'. # {"EventId": {"Id": 15}, "SourceContext": "Microsoft.AspNetCore.Hosting.Diagnostics"}

I do not understand where that HTTP_PORTS settings comes from, as none of the configuration sources I can think of set it.

Solution

This setup comes from the original images ans it can be viewed when inspecting the image, as the sample below:

"Env": [
            "DOTNET_USE_POLLING_FILE_WATCHER=1",
            "ASPNETCORE_ENVIRONMENT=Development",
            "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
            "APP_UID=1654",
            "ASPNETCORE_HTTP_PORTS=8080",
            "DOTNET_RUNNING_IN_CONTAINER=true",
            "DOTNET_VERSION=8.0.0-rc.2.23479.6",
            "ASPNET_VERSION=8.0.0-rc.2.23480.2",
            "ASPNETCORE_URLS=http://+:5099"
        ],

To avoid this warning you can set the environment variable ASPNETCORE_HTTP_PORTS, and comment the "ENV ASPNETCORE_URLS" line in your Dockerfile file and re-create the image again.

#ENV ASPNETCORE_URLS=http://+:5099
ENV ASPNETCORE_HTTP_PORTS=5099

I hope it helps you.