Merge in 'release/5.0-preview8' changes

dockerbuild.sh

@@ -133,10 +133,14 @@ docker run \
     -t \
     -e TF_BUILD \
     -e BUILD_NUMBER \
+    -e BUILD_BUILDID \
+    -e SYSTEM_TEAMPROJECT \
     -e BUILD_BUILDNUMBER \
     -e BUILD_REPOSITORY_URI \
     -e BUILD_SOURCEVERSION \
     -e BUILD_SOURCEBRANCH \
+    -e SYSTEM_DEFINITIONID \
+    -e SYSTEM_TEAMFOUNDATIONCOLLECTIONURI \
     -e DOTNET_CLI_TELEMETRY_OPTOUT \
     -e Configuration \
     -v "$DIR:$DIR" \