What is a popular orchestration tool for Docker?

Kubernetes is recognized as a leading orchestration tool for managing containerized applications in a cluster environment, including those utilizing Docker. It provides robust features such as automatic deployment, scaling, and management of containerized applications, making it particularly well-suited for cloud-native application architectures.

Kubernetes excels in its ability to manage a large number of containers and deploy them across a cluster of machines, allowing for efficient resource utilization and seamless scaling. With its declarative configuration model and powerful API, it enables developers to manage infrastructure as code, enhance deployment processes, and maintain high availability.

While other tools, such as Docker Swarm and Docker Compose, are also designed for managing Docker containers, they cater to different use cases. Docker Swarm is Docker's own native clustering and orchestration tool, which is simpler but less feature-rich than Kubernetes. Docker Compose is primarily focused on defining and running multi-container Docker applications. Apache Mesos is a cluster manager that can handle workloads beyond container orchestration, but it is not specifically tailored for Docker.

Thus, Kubernetes stands out as the preferred orchestration tool for managing complex container deployments at scale.