Kubernetes Skill

Deploy and manage applications in Kubernetes clusters.

When to Use

Use this skill when the user wants to:

• Create Kubernetes manifests (YAML)
• Use Helm charts for deployments
• Configure Pods, Services, Deployments
• Set up Helm repositories
• Implement K8s networking
• Configure RBAC and security
• Use ingress controllers

Kubernetes Resources

Core Resources

• Pod: Single container instance
• Deployment: Replica set management
• Service: Network access abstraction
• StatefulSet: Stateful applications
• DaemonSet: System services

Ingress & Networking

• Ingress resources
• Service types (ClusterIP, NodePort, LoadBalancer)
• NetworkPolicies
• Ingress controllers (NGINX, Traefik)

Storage

• PersistentVolumes
• PersistentVolumeClaims
• StorageClasses
• VolumeMounts

Helm Charts

# Chart structure
my-chart/
├── Chart.yaml
├── values.yaml
├── templates/
│   ├── deployment.yaml
│   ├── service.yaml
│   └── ingress.yaml
└── .helmignore

Deployment Strategies

• RollingUpdate: Gradual rollout
• Recreate: Stop all pods first
• Canary: Incremental rollout
• Blue/Green: Parallel deployment

Best Practices

• Use labels and selectors consistently
• Configure resource limits and requests
• Use environment variables for config
• Implement health checks (liveness, readiness)
• Use secrets for sensitive data
• Add annotations for observability

Deliverables

• Kubernetes manifests
• Helm chart (if using Helm)
• Deployment documentation
• Testing scripts (kubetest)

Quality Checklist

• All resources have proper labels
• Resource limits set
• Health checks configured
• Service discovery works
• ConfigMaps/Secrets properly used
• RBAC configured where needed