Lesson 2: Introduction to Kubernetes

Kubernetes is an open-source container orchestration system that automates the deployment, scaling, and management of containerized applications. It was originally developed by Google and is now maintained by the Cloud Native Computing Foundation (CNCF).

Kubernetes provides a platform for managing containerized workloads and services, as well as the infrastructure required to run them. It is designed to be portable, extensible, and scalable, making it a popular choice for managing containerized applications in production environments.

Kubernetes uses a declarative configuration model, allowing users to define desired state and letting Kubernetes handle the details of bringing the system to that state. This makes it possible to manage complex systems with ease, allowing teams to focus on developing and deploying applications rather than worrying about the underlying infrastructure.

Key Concepts

Kubernetes is built around a number of key concepts, including:

• Nodes: The physical or virtual machines that run your applications
• Pods: The smallest deployable units in Kubernetes, consisting of one or more containers
• Services: An abstraction layer that exposes a set of Pods as a network service
• Replication Controllers: Ensures that a specified number of Pod replicas are running at all times
• Deployments: Provides declarative updates for Pods and ReplicaSets

Further Reading

• Official Kubernetes Documentation

• Kubernetes Up and Running: Dive into the Future of Infrastructure

• Kubernetes: Scheduling the Future at Cloud Scale

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