References
What is Kubernetes(k8s)
k83 Architecture
Kubernetes Explained in 6 Minutes | k8s Architecture

etcd: a consistent and highly-available key value store used as Kubernetes' backing store for all cluster data.
Pod: a Kubernetes abstraction that represents a group of one or more application containers (such as Docker), and some shared resources for those containers.

Node: a worker machine in Kubernetes and may be either a virtual or a physical machine, depending on the cluster
Why we use K83
- The K8s system automates the deployment and management of cloud native applications using on-premises infrastructure or public cloud platforms.
- It distributes application workloads across a Kubernetes cluster and automates dynamic container networking needs.
- Kubernetes also allocates storage and persistent volumes to running containers, provides automatic scaling, and works continuously to maintain the desired state of applications, providing resiliency