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I have read some introduction of these projects, but still cannot get a clear idea of the difference between Kubernetes and Flynn/Deis. Can anyone help?
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A major difference between Docker and Kubernetes is that Docker runs on a single node, whereas Kubernetes is designed to run across a cluster. Another difference between Kubernetes and Docker is that Docker can be used without Kubernetes, whereas Kubernetes needs a container runtime in order to orchestrate.
Docker Swarm provides high availability as you can easily duplicate the microservices in Docker Swarm. Moreover, Docker Swarm has a faster deployment time. On the other hand, it doesn't provide automatic scaling. Kubernetes is by nature highly available, fault tolerant, and self-healing.
Kubernetes, also known as K8s, is an open-source system for automating deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical units for easy management and discovery.
Kubernetes traces its lineage directly from Borg. Many of the developers at Google working on Kubernetes were formerly developers on the Borg project.
Kubernetes is really three things:
This is all very much a tool set for managing compute across a set of machines. It isn't a full application PaaS. Kubernetes doesn't have any idea what an "application" is. Generally PaaS systems provide an easy way to take code and get it deployed and managed as an application. In fact, I expect to see specialized PaaS systems built on top of Kubernetes -- that is what RedHat OpenShift is doing.
One way to think about Kubernetes is as a system for "logical" infrastructure (vs. traditional VM cloud systems which are
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