Azure Container Instances are the easiest way to host Docker containers in the cloud. Until you want them to do... nothing.
Coming June 27, 2018 you will have a unique opportunity to learn how to make the best use of the latest Office 365 capabilities to design and build solutions for your organization.
I've just published the SharePoint Framework v1.5.0 Docker image. But there is a caveat to use it.
You start a new SharePoint Framework project. You use the latest version of the SharePoint Framework. But for how long will you be able to stay on the latest version?
Using Docker images for building SharePoint Framework solutions offers you great flexibility. But only when you make the image your own, you will truly benefit of it.