kubernetes-ops

name	kubernetes-ops
description	Operate and troubleshoot Kubernetes clusters, workloads, and networking. Use when deploying, scaling, or debugging Kubernetes resources.

Kubernetes Operations

Activate this skill when working with Kubernetes clusters and workloads.

When to Use

• Deploying applications to Kubernetes
• Troubleshooting pod failures or scheduling issues
• Configuring networking (services, ingress, network policies)
• Managing secrets and configuration
• Scaling workloads and configuring autoscaling
• Debugging container crashes or connectivity issues

Common Operations

# Check pod status and events
kubectl get pods -n <namespace>
kubectl describe pod <pod-name> -n <namespace>
kubectl logs <pod-name> -n <namespace> --previous

# Debug networking
kubectl exec -it <pod> -- nslookup <service>
kubectl get endpoints <service>
kubectl get networkpolicies

# Resource management
kubectl top pods -n <namespace>
kubectl get hpa

Troubleshooting Flow

1. Check pod status (Pending, CrashLoopBackOff, ImagePullBackOff)
2. Read events with kubectl describe
3. Check logs (current and previous container)
4. Verify resource requests vs node capacity
5. Check network policies and service endpoints
6. Verify secrets and configmaps are mounted correctly

Rules

• Always specify namespace explicitly
• Use labels and selectors consistently
• Set resource requests AND limits on all containers
• Implement liveness, readiness, and startup probes
• Use pod disruption budgets for critical workloads
• Never use kubectl edit in production -- use GitOps
• Store manifests in version control