Running web application in Docker

Now let's start creating our first image using the Dockerfiles approach:

1. Create a folder under C:\ on Windows Server Containers host machine for storing our image artifacts; let's call it learningwsc-chapter2.
2. Create another folder within learning-chapter2/hellodocker, which will hold the artifacts for our first image.
3. Open a text editor such as notepad and copy the following contents into the file:

       FROM microsoft/windowsservercore
       MAINTAINER [e-mail]
       LABEL Description="IIS" Vendor=Microsoft" Version="10?
       RUN powershell -Command Add-WindowsFeature Web-Server
       COPY index.htm /inetpub/wwwroot/
       EXPOSE 80
       CMD [ "ping localhost -t" ]

4. Save this file as Dockerfile under learningwsc-chapter2/hellodocker.
5. Make sure the file is saved without any extension.

To save a file without any extensions...