Today while converting my web app from ASP.NET 2.0 to 2.1 Preview2, I notice that the docker file needs to point to the new docker image. The following docker images has been depracated.

  • microsoft/aspnetcore-build:1.0-1.1
  • microsoft/aspnetcore-build:1.0-2.0

According to the github issue and I quote These images will continue to receive patch update whenever a 1.0.x, 1.1.x, or 2.0.x update ships, however, we will not produce a new version which contains the 2.1 runtime.

ASP.NET Core 2.1 Dockerfile

Now to point my web app to the new docker image just need to update the docker file to this.

  • microsoft/aspnetcore:<version> now points to microsoft/dotnet:<version>-aspnetcore-runtime

For more information and discussion about this change see the announcement here