This article is part of the series that compare Kubernetes and Docker Swarm features.
- Kubernetes Pods, ReplicaSets, And Services Compared To Docker Swarm Stacks
- Kubernetes Deployments Compared To Docker Swarm Stacks
- Kubernetes Ingress Compared To Docker Swarm Equivalent
- Kubernetes ConfigMaps Compared To Docker Swarm Configs
- Kubernetes Secrets Compared To Docker Swarm Secrets
- Kubernetes Namespaces Compared To Docker Swarm Equivalent (If There Is Any)
- Kubernetes RBAC Compared To Docker Swarm RBAC
- Kubernetes Resource Management Compared To Docker Swarm Equivalent
Docker has RBAC. Just as Kubernetes, it is organized around subjects, roles, and resource collections. In many aspects, both provide a very similar set of features. Should we quickly declare it a tie?
There is one crucial difference between Kubernetes RBAC and the one provided by Docker. The latter is not free. You’d need to purchase Docker Enterprise Edition (EE) to secure your cluster beyond “only those with the certificate can access it.” If you do have Docker EE, you already made up your mind, and the discussion whether to use one or the other is over. Docker EE is great, and soon it will work not only with Swarm but also with Kubernetes. You bought it, and there’s not much reason to switch to something else. However, this comparison focuses on what open source core versions can offer. It ignores third party and enterprise additions.