Tools-Tech June 6, 2014

Kubernetes

Production-grade container orchestration platform for automating deployment, scaling, and management of containerized applications

Kubernetes (K8s) is an open-source container orchestration platform originally designed by Google. It automates the deployment, scaling, and management of containerized applications across clusters of machines.

Key Features

  • Container Orchestration - Manage containers across multiple hosts
  • Auto-scaling - Automatically scale applications based on demand
  • Service Discovery - Built-in service discovery and load balancing
  • Rolling Updates - Zero-downtime deployments
  • Self-healing - Automatically restart failed containers

Core Concepts

  • Pods - Smallest deployable units (usually one container)
  • Services - Stable network endpoints for pods
  • Deployments - Manage replica sets and rolling updates
  • Namespaces - Virtual clusters within a physical cluster
  • ConfigMaps & Secrets - Configuration and sensitive data management

Common Use Cases

  • Microservices - Deploy and manage microservice architectures
  • CI/CD Pipelines - Automated deployment and scaling
  • Multi-cloud - Run applications across different cloud providers
  • DevOps - Infrastructure as code and GitOps workflows
  • Legacy Modernization - Containerize existing applications

Getting Started

# Install kubectl (Kubernetes CLI)
brew install kubectl  # macOS
# or download from https://kubernetes.io/docs/tasks/tools/

# Connect to a cluster
kubectl config use-context my-cluster

# Deploy an application
kubectl create deployment nginx --image=nginx
kubectl expose deployment nginx --port=80 --type=LoadBalancer

# Check status
kubectl get pods
kubectl get services

Why Choose Kubernetes?

Kubernetes excels when you need:

  • Scalability - Handle traffic spikes automatically
  • Reliability - High availability and fault tolerance
  • Portability - Run anywhere (cloud, on-premises, hybrid)
  • Ecosystem - Rich ecosystem of tools and extensions
  • Industry Standard - Widely adopted container orchestration

Kubernetes is essential for modern cloud-native application development and DevOps practices.

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