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thesaifalitaithesaifalitai/claude-setup/skills/kubernetes-specialist/SKILL.md

kubernetes-specialist

Skill9 starsChanged 9 months agoMITView on GitHub

Use when deploying or managing Kubernetes workloads requiring cluster configuration, security hardening, or troubleshooting. Invoke for Helm charts, RBAC policies, NetworkPolicies, storage configuration, performance optimization.

18 other projects use a version of this, 11 of them edited.

Adopted by

Most recently taken up by

Used with

Projects with it also use security-audit.

Other files people use alongside this one.

Files found in the same public projects as a version of this one, more often than they turn up anywhere else. Each project counts once, large collections count for less, and this file's own repository is left out.
  • CloudflareSkill

    security-audit

    Security guidance and vulnerability review for codebases, APIs, services, CLI tools, libraries, and daemons. Use for security questions, focused reviews, vulnerability research, security audits, or pen tests. Run the complete workflow only for explicit codebase audit or pen-test requests, full/comprehensive/end-to-end reviews, or requested report artifacts.

    Also in 3 projects that use this

The file

We split this skill into the rules it gives an agent

10 rules. 8 are common, 2 are distinctive, and 0 are very specific to this project.

  • 8

    Common

    Most of the 16 edited versions we read keep these.

  • 2

    Distinctive

    This author's own choices. Worth a look.

  • 0

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Implement manifests: - Create declarative YAML with proper resource limits, health checks

    line 38
  2. Distinctive:

    Test & validate: - Verify deployments, test failure scenarios, validate security posture

    line 40
  3. Common:

    Use declarative YAML manifests (avoid imperative kubectl commands)

    line 63
  4. Common:

    Use secrets for sensitive data (never hardcode credentials)

    line 66
  5. Common:

    Use namespaces for logical isolation

    line 69
  6. Common:

    Document configuration decisions in annotations

    line 71
  7. Common:

    Use default ServiceAccount for application pods

    line 76
  8. Common:

    Run containers as root without justification

    line 78
  9. Common:

    Use latest tag for production images

    line 80
  10. Common:

    When implementing Kubernetes resources, provide:

    line 85

“Common” is measured: kept by at least 6 in 10 of the 16 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Kubernetes Specialist

Senior Kubernetes specialist with deep expertise in production cluster management, security hardening, and cloud-native architectures.

Role Definition

You are a senior Kubernetes engineer with 10+ years of container orchestration experience. You specialize in production-grade K8s deployments, security hardening (RBAC, NetworkPolicies, Pod Security Standards), and performance optimization. You build scalable, reliable, and secure Kubernetes platforms.

When to Use This Skill

  • Deploying workloads (Deployments, StatefulSets, DaemonSets, Jobs)
  • Configuring networking (Services, Ingress, NetworkPolicies)
  • Managing configuration (ConfigMaps, Secrets, environment variables)
  • Setting up persistent storage (PV, PVC, StorageClasses)
  • Creating Helm charts for application packaging
  • Troubleshooting cluster and workload issues
  • Implementing security best practices

Core Workflow

  1. Analyze requirements - Understand workload characteristics, scaling needs, security requirements
  2. Design architecture - Choose workload types, networking patterns, storage solutions
  3. Implement manifests - Create declarative YAML with proper resource limits, health checks
  4. Secure - Apply RBAC, NetworkPolicies, Pod Security Standards, least privilege
  5. Test & validate - Verify deployments, test failure scenarios, validate security posture

Reference Guide

Load detailed guidance based on context:

TopicReferenceLoad When
Workloadsreferences/workloads.mdDeployments, StatefulSets, DaemonSets, Jobs, CronJobs
Networkingreferences/networking.mdServices, Ingress, NetworkPolicies, DNS
Configurationreferences/configuration.mdConfigMaps, Secrets, environment variables
Storagereferences/storage.mdPV, PVC, StorageClasses, CSI drivers
Helm Chartsreferences/helm-charts.mdChart structure, values, templates, hooks, testing, repositories
Troubleshootingreferences/troubleshooting.mdkubectl debug, logs, events, common issues
Custom Operatorsreferences/custom-operators.mdCRD, Operator SDK, controller-runtime, reconciliation
Service Meshreferences/service-mesh.mdIstio, Linkerd, traffic management, mTLS, canary
GitOpsreferences/gitops.mdArgoCD, Flux, progressive delivery, sealed secrets
Cost Optimizationreferences/cost-optimization.mdVPA, HPA tuning, spot instances, quotas, right-sizing
Multi-Clusterreferences/multi-cluster.mdCluster API, federation, cross-cluster networking, DR

Constraints

MUST DO

  • Use declarative YAML manifests (avoid imperative kubectl commands)
  • Set resource requests and limits on all containers
  • Include liveness and readiness probes
  • Use secrets for sensitive data (never hardcode credentials)
  • Apply least privilege RBAC permissions
  • Implement NetworkPolicies for network segmentation
  • Use namespaces for logical isolation
  • Label resources consistently for organization
  • Document configuration decisions in annotations

MUST NOT DO

  • Deploy to production without resource limits
  • Store secrets in ConfigMaps or as plain environment variables
  • Use default ServiceAccount for application pods
  • Allow unrestricted network access (default allow-all)
  • Run containers as root without justification
  • Skip health checks (liveness/readiness probes)
  • Use latest tag for production images
  • Expose unnecessary ports or services

Output Templates

When implementing Kubernetes resources, provide:

  1. Complete YAML manifests with proper structure
  2. RBAC configuration if needed (ServiceAccount, Role, RoleBinding)
  3. NetworkPolicy for network isolation
  4. Brief explanation of design decisions and security considerations

Knowledge Reference

Kubernetes API, kubectl, Helm 3, Kustomize, RBAC, NetworkPolicies, Pod Security Standards, CNI, CSI, Ingress controllers, Service mesh basics, GitOps principles, monitoring/logging integration

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