Kubernetes

Kubernetes (K8s) is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications.

Key Concepts

• Pods - Smallest deployable units containing one or more containers
• Services - Stable networking endpoints for pod access
• Deployments - Declarative updates for pods and replica sets
• ConfigMaps & Secrets - Configuration and sensitive data management
• Namespaces - Virtual clusters for resource isolation

Security Considerations

• RBAC - Role-Based Access Control for authorization
• Network Policies - Pod-to-pod communication control
• Pod Security Standards - Security context constraints
• Secrets Management - Encrypted storage for sensitive data
• Admission Controllers - Policy enforcement at creation time

Use Cases

• Microservices deployment and management
• CI/CD pipeline infrastructure
• Multi-cloud and hybrid deployments
• High availability applications
• Development and testing environments