Introduction to Kubernetes

Kubernetes, also known as K8s, is an open-source platform designed to automate deploying, scaling, and operating application containers. It was originally developed by Google and is now maintained by the Cloud Native Computing Foundation.

Core Concepts

The following are some of the core concepts in Kubernetes:

• Pods: The smallest deployable units created and managed by Kubernetes.
• Services: An abstraction which defines a logical set of Pods and a policy by which to access them.
• Deployment: Manages the deployment and scaling of a set of Pods, and provides updates to Pods along with a lot of other useful functionality.

Kubernetes Architecture

The architecture of Kubernetes is what makes it unique; it consists of a master node and multiple worker nodes:

• Master Node: The controlling unit in the Kubernetes that manages the state of the cluster.
• Worker Nodes: The machines that run your application containers.

Setting Up a Kubernetes Cluster

To set up a Kubernetes cluster, you need to:

• Set up the master and worker nodes.
• Install Kubernetes on all nodes.
• Configure the master node to manage the cluster.
• Join the worker nodes to the cluster.

Practical Uses of Kubernetes

Kubernetes can be used in a variety of environments, including production, development, and testing. It helps with:

• Load balancing and service discovery.
• Storage orchestration.
• Automated rollouts and rollbacks.
• Automatic bin packing.
• Self-healing.