Understanding ReplicaSet vs. StatefulSet vs. DaemonSet vs. Deployments

Kubernetes supports various controller types, each serving unique use cases in managing containerized applications. ReplicaSets are used to scale applications by maintaining multiple instances of the same pod, ideal for handling increased traffic and load balancing. Deployments build on ReplicaSets by adding features like rolling updates, rollbacks, and version control, making them the preferred choice for production environments to ensure smooth and efficient application management. StatefulSets cater to stateful applications requiring persistent storage and stable network identities, essential for databases and distributed systems. DaemonSets, on the other hand, ensure that a single instance of a pod runs on each node, making them suitable for tasks like log collection and system monitoring. Each controller type uses the Kubernetes API to monitor and adjust resource states, and understanding their differences helps in choosing the right one for specific scenarios.