To expand on this:
* Heroku have introduced Docker-based tools to run their buildpacks outside of their staging servers,
* Cloud Foundry has, in public beta, the Diego scheduler, which can accept and manage Docker images,
* OpenShift 3 uses Docker and Kubernetes as its core components.
Disclaimer: I work for Pivotal, who founded Cloud Foundry.
To expand on this:
* Heroku have introduced Docker-based tools to run their buildpacks outside of their staging servers,
* Cloud Foundry has, in public beta, the Diego scheduler, which can accept and manage Docker images,
* OpenShift 3 uses Docker and Kubernetes as its core components.
Disclaimer: I work for Pivotal, who founded Cloud Foundry.