NexQloud Knowledge Base

To use Kubernetes effectively, it's essential to understand its core objects:

• Pod: The smallest deployable unit in Kubernetes. A Pod represents a single instance of a running process and can contain one or more tightly coupled containers. For most use cases, one container per Pod is the standard.‍
• Deployment: A Kubernetes object that defines the desired state for your application. You declare the container image, the number of replicas (Pods), and update strategy. The Deployment controller then works tirelessly to ensure that state is met, enabling seamless rolling updates and self-healing.‍
• Service: An abstraction that defines a logical set of Pods and a policy to access them. Since Pods are ephemeral, a Service provides a stable IP address and DNS name for other applications to connect to, enabling reliable service discovery.