This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/sle-15-sp6/containerfile/bci/dotnet-aspnet:9.0
  docker pull registry.opensuse.org/devel/bci/sle-15-sp6/containerfile/bci/dotnet-aspnet:9.0.0
  docker pull registry.opensuse.org/devel/bci/sle-15-sp6/containerfile/bci/dotnet-aspnet:9.0.0-2.1
  docker pull registry.opensuse.org/devel/bci/sle-15-sp6/containerfile/bci/dotnet-aspnet:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.