Kubernetes Security Hardening

Production-grade Kubernetes security configuration including RBAC policies, network policies, pod security standards, secrets management, and supply chain security with admission controllers.

Platinum

v1.0.00 activationsSecurityEngineeringexpert

SupaScore

Research Quality (15%)

8.5

Prompt Engineering (25%)

8.5

Practical Utility (15%)

8.5

Completeness (10%)

8.5

User Satisfaction (20%)

8.5

Decision Usefulness (15%)

8.5

Best for

▸Implementing Pod Security Standards enforcement with admission controllers for multi-tenant clusters
▸Designing namespace-scoped RBAC policies with minimal privilege escalation paths
▸Creating default-deny network policies with CNI-specific ingress/egress rules
▸Configuring etcd encryption at rest and secrets management with external KMS integration
▸Setting up supply chain security with Sigstore verification and OPA Gatekeeper policies

What you'll get

●Complete YAML manifests with namespace-scoped RBAC policies, explicit verb restrictions, and privilege escalation prevention rules
●Pod Security Standards enforcement configuration with restricted policies, security contexts, and exception documentation
●Network policy templates with default-deny baseline and workload-specific allow rules with CNI compatibility notes

Not designed for ↓

×Basic Kubernetes deployment tutorials or cluster setup instructions
×Application-level vulnerability scanning or container image building
×Cloud provider IAM configuration outside of Kubernetes RBAC integration
×General compliance frameworks that aren't Kubernetes-specific

Expects

Production Kubernetes cluster details including current security posture, compliance requirements, threat model context, and specific workload characteristics requiring hardening.

Returns

Comprehensive hardening manifests with RBAC policies, Pod Security Standards configurations, network policies, admission controller rules, and implementation playbooks with security validation steps.

Evidence Policy

Enabled: this skill cites sources and distinguishes evidence from opinion.

kubernetesk8s-securityrbacnetwork-policiespod-security-standardssecrets-managementsupply-chain-securityadmission-controllerscis-benchmarkcontainer-securityruntime-securityopa-gatekeeperkyvernosigstorehardening

Research Foundation: 9 sources (4 official docs, 3 industry frameworks, 1 paper, 1 books)

This skill was developed through independent research and synthesis. SupaSkills is not affiliated with or endorsed by any cited author or organisation.

Version History

v1.0.02/15/2026

Initial release

Prerequisites

Use these skills first for best results.

Kubernetes Operations AdvisorGold

Works well with

Cloud IAM Security ArchitectGold Container Security HardenerGold DevSecOps Pipeline ArchitectPlatinum Supply Chain Security ArchitectGold Zero Trust Network DesignerGold

Need more depth?

Specialist skills that go deeper in areas this skill touches.

Penetration Testing GuideGold Threat Modeling AdvisorGold Compliance as Code ArchitectGold

Common Workflows

Production Cluster Security Hardening

Complete cluster hardening from baseline setup through security implementation to penetration testing validation

Kubernetes Operations Advisor→kubernetes-security-hardening→Penetration Testing Guide

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