Azure has done the same, using the open source Docker Registry 2.0 as the basis for its own container registry, compliant with Open Container Initiative.

How to install and configure the fast and lightweight container host Linux distribution for Azure Kubernetes Service and the Microsoft Container Registry.

Microsoft Azure becomes the first public cloud to support all the mainstream container orchestration engines including Docker Swarm, Mesosphere DC/OS, and Kubernetes.

Deploying a container only takes a single command with a few basic parameters and you can pull containers from public repositories like the Docker Hub or our private repositories on Azure.

Microsoft is rolling out a preview of a dedicated Azure Container Service for Kubernetes, but will continue to offer its existing ACS offering which will support other container orchestrators, too.

Microsoft's new Azure Container Service will be available to testers before year-end. That's just one of a handful of Azure-related announcements happening as part of AzureCon.