Kubernetes¶
Kubernetes (K8s) is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications.
📚 Documentation Structure¶
Core Concepts¶
- Kubernetes Architecture - Control plane, nodes, and components
- Kubernetes Objects - Understanding K8s resources
- Pods - The smallest deployable units
- Workloads - Deployments, StatefulSets, DaemonSets, Jobs
Networking¶
- Networking Overview - K8s networking model
- Services - Service types and load balancing
- Ingress - HTTP/HTTPS routing
- Network Policies - Traffic control
Storage¶
- Storage Overview - Volumes and persistence
- Persistent Volumes - PV and PVC
- Storage Classes - Dynamic provisioning
Configuration & Secrets¶
- ConfigMaps - Configuration management
- Secrets - Sensitive data management
Security¶
- Security Overview - K8s security model
- RBAC - Role-Based Access Control
- Pod Security - Security contexts and policies
- Network Security - Securing cluster networking
Advanced Topics¶
- Operators - Extending Kubernetes
- Custom Resources - CRDs and custom controllers
- Helm - Package management
- Autoscaling - HPA, VPA, Cluster Autoscaler
Operations¶
- kubectl Commands - Essential CLI commands
- Cluster Setup - Installation and configuration
- Monitoring - Observability and metrics
- Logging - Log aggregation
- Troubleshooting - Common issues and solutions
Workflows & Best Practices¶
- CI/CD with Kubernetes - Deployment workflows
- GitOps - GitOps practices
- Best Practices - Production recommendations
- Multi-Tenancy - Cluster sharing strategies
🚀 Quick Start¶
# Check cluster info
kubectl cluster-info
# Get nodes
kubectl get nodes
# Create a deployment
kubectl create deployment nginx --image=nginx
# Expose deployment
kubectl expose deployment nginx --port=80 --type=LoadBalancer
# Get all resources
kubectl get all
📖 Learning Path¶
- Fundamentals: Architecture → Objects → Pods → Workloads
- Networking: Services → Ingress → Network Policies
- Storage: Volumes → Persistent Volumes → Storage Classes
- Configuration: ConfigMaps → Secrets
- Security: RBAC → Pod Security → Network Security
- Advanced: Operators → Custom Resources → Helm
- Operations: kubectl → Monitoring → Troubleshooting