Introduction

Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. It allows businesses to run applications reliably at scale, making it a critical component in modern cloud-native architectures.

Key Features

• Automated Scaling: Automatically adjust workloads based on demand.
• Self-Healing: Automatically restart, replace, or reschedule containers that fail.
• Service Discovery & Load Balancing: Efficiently distribute traffic to your containers.
• Storage Orchestration: Mount and manage storage systems seamlessly.
• Declarative Configuration: Manage applications with YAML manifests for reproducible deployments.

Kubernetes Architecture

• Master Node: Controls the cluster, manages the API server, scheduler, and controller manager.
• Worker Nodes: Run application workloads inside containers.
• Pods: The smallest deployable units that hold one or more containers.
• Services: Abstract how applications communicate within the cluster and outside.
• Etcd: The distributed key-value store that maintains cluster state.

Deployment Strategies

• Rolling Updates: Gradually update applications with minimal downtime.
• Blue/Green Deployments: Maintain two environments and switch traffic seamlessly.
• Canary Deployments: Release new versions to a subset of users for testing.

Networking Basics

• Cluster Networking: Every pod gets a unique IP and can communicate with others.
• Service Types: ClusterIP, NodePort, LoadBalancer, and ExternalName for flexible connectivity.
• DNS & Service Discovery: Enables containers to discover each other by name.

Why Choose Kubernetes with Reysys?

• Expert guidance to design, deploy, and maintain Kubernetes clusters.
• Optimization for performance, scalability, and security.
• Support for hybrid and multi-cloud deployments.
• Tailored solutions for enterprise and startup needs alike.