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.

This tutorial walks you through using Visual Studio to publish your containerized application to an Azure Container Registry." Deploy to Azure Container Apps using Visual Studio Code: "Azure Container ...

Simple container-based web apps and services don’t need Kubernetes to run on Azure.

In a related announcement, Microsoft is previewing a new Azure Container Registry Geo Replication service, which lets users use a single registry by just clicking on an Azure map.

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.