NexQloud Knowledge Base

To understand Kubernetes, it's helpful to know its key objects:

• Pod: The smallest and simplest Kubernetes object. A Pod represents a single instance of a running process and typically contains one container (though it can contain multiple tightly-coupled containers).‍
• Deployment: A Kubernetes object that manages the lifecycle of Pods. You use a Deployment to declare the desired state for your application, such as the number of replicas and the container image version. It enables seamless updates and rollbacks.‍
• Service: An abstraction that defines a logical set of Pods and a policy to access them. Since Pods are ephemeral (they can be created and destroyed), a Service provides a stable IP address and DNS name for other applications to connect to, enabling service discovery.‍
• Node: A worker machine (a virtual or physical server) where Pods are scheduled to run.