‘Importantly, the OpenShift platform cloud software, which included Red Hat’s own implementation of the Kubernetes container controller, will be deployable on either the full-on Red Hat Enterprise Linux in pets mode or the minimalist Red Hat CoreOS in cattle mode. But it will be using the Tectonic version of the Kubernetes controller going forward as well as integrating the Prometheus monitoring tool and etcd for storing telemetry. Gracely tells The Next Platform that the implementation of Kubernetes had outside dependencies such as the CloudForms hybrid cloud management tool (formerly ManageIQ) and was not “native” to Kubernetes in the same way that Tectonic is, meaning free of outside dependenies.’
Original source: CoreOS Is New Linux, Not A RHEL Classic Killer