add 1803 dockerfile

windowsservercore-1803/Dockerfile

@@ -0,0 +1,10 @@
+# escape=`
+FROM microsoft/windowsservercore:1803
+
+RUN powershell -Command `
+    Add-WindowsFeature Web-Server; `
+    Invoke-WebRequest -UseBasicParsing -Uri "https://dotnetbinaries.blob.core.windows.net/servicemonitor/2.0.1.3/ServiceMonitor.exe" -OutFile "C:\ServiceMonitor.exe"
+
+EXPOSE 80
+
+ENTRYPOINT ["C:\\ServiceMonitor.exe", "w3svc"]