What is the main purpose of Docker Swarm?

The main purpose of Docker Swarm is to manage a cluster of Docker engines and orchestrate container deployment. Docker Swarm functions as a native clustering and orchestration tool for Docker, enabling multiple Docker hosts to be grouped together as a single virtual host. This allows for enhanced management of containerized applications across a distributed environment.

Through Docker Swarm, users can automate the deployment, scaling, and management of containers, making it easier to maintain application availability and performance. It provides features such as load balancing, service discovery, and rolling updates, which are crucial for operating containers at scale in a production environment. Essentially, Docker Swarm simplifies the complexities involved in managing multiple containers across different hosts, ensuring that applications run smoothly and efficiently.