ASPNET 5 - Missing VS 2015 Tools for Docker options

Recently, whilst trying to publish an ASPNET 5 website to Docker, using the VS 2015 Tools for Docker (0.7.1): I hit an issue whereby there was a missing option within the publish to Docker dialog UI - there was no option to select a new Azure Docker Virtual Machine - only use an existing one eg:

The option I was looking for:

This is caused by an older version of the ASP.NET and Web Tools 2015, simply updating these (current version Beta7) from here and you'll see the option light up:

Old version show below:

Latest (Beta7) version: