Kubernetes vs Docker Swarm

Kubernetes and Docker Swarm have many of the same features, but each tool shines in different aspects.

Features	Kubernetes	Docker Swarm
Installation & Cluster Config	Setup is very complicated, but once installed cluster is robust.	Installation is very simple, but the cluster is not robust
Learning curve	High learning curve (but has more features)	Lightweight and easy to use (but limited functionality)
GUI	Detailed native dashboards	No out-of-the-box dashboards (but you can integrate a third-party tool)
Cluster setup	Difficult to start a cluster (but the cluster is very strong once set up)	Easy to start a cluster
Availability features	Self-healing, intelligent scheduling, and replication features	Availability controls and service duplication
Scalability	All-in-one scaling based on traffic	Values scaling quickly (approx. 5x faster than K8s) over scaling automatically
Horizontal auto-scaling	Kubernetes can do auto-scaling.	Docker swarm cannot do auto-scaling.
Monitoring capabilities	Has built-in monitoring and logging	Basic server log and event tools, but needs a third-party tool for advanced monitoring
Load balancing	Manual intervention needed for load balancing traffic between different containers and pods	Docker swarm does auto load balancing of traffic between containers in the cluster.
Rolling Updates & Rollbacks	Can deploy rolling updates and does automatic rollbacks	Can deploy rolling updates, but not automatic rollback.
DATA Volumes	Can share storage volumes only with the other containers in the same pod.	Can share storage volumes with any other container.
Security features	Relies on transport layer security (TLS) and access control-related tasks	Supports multiple security protocols (RBAC authorization, TLS/SSL, secrets management, policies, etc.)
CLI	Needs a separate CLI	Integrated Docker CLI, which can limit the functionality in some use cases
Optimal use case	High-demand apps with a complex configuration	Simple apps that are quick to deploy and easy to manage