Docker Swarm

Docker Swarm is the native clustering and orchestration solution built directly into the Docker Engine for managing distributed container workloads.

Swarm mode transforms a group of Docker hosts into a single, resilient virtual system. It handles the heavy lifting of service discovery, load balancing, and desired state reconciliation without requiring external plugins or complex setups. You manage the cluster using standard Docker CLI commands: initialize a manager with 'docker swarm init', join worker nodes via secure tokens, and deploy multi-container stacks using familiar Compose files. With features like rolling updates and mutual TLS encryption enabled by default, Swarm provides a production-ready environment that prioritizes operational simplicity and speed.

https://docs.docker.com/engine/swarm/