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k8s-security-policies

Implement Kubernetes NetworkPolicy, PodSecurityPolicy, and RBAC security policies.

4|2|Updated Jan 7, 2026
Search Tags:#devops#security#rbac#kubernetes#networkpolicy#podsecuritypolicy
One-click install
npx skills add https://github.com/3commas-io/commas-claude --skill k8s-security-policies-3commas-io
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: k8s-security-policies
Source: https://github.com/3commas-io/commas-claude/tree/main/skills/k8s-security-policies
Command: npx skills add https://github.com/3commas-io/commas-claude --skill k8s-security-policies-3commas-io

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes assets (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the critical need to secure Kubernetes clusters by implementing comprehensive security policies, ensuring compliance, and minimizing attack surfaces.

Core Features & Use Cases

  • Policy Implementation: Provides configurations for NetworkPolicy, PodSecurityPolicy, RBAC, and Pod Security Standards.
  • Security Hardening: Guides users on applying least-privilege principles, network segmentation, and admission control.
  • Use Case: When deploying a new microservice, use this Skill to define NetworkPolicies that restrict its ingress and egress traffic to only necessary endpoints and configure RBAC for its service account with minimal required permissions.

Quick Start

Apply the 'default-deny-all' NetworkPolicy to the 'production' namespace.

Frequently Asked Questions about k8s-security-policies

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I configure Kubernetes NetworkPolicy to restrict ingress and egress traffic for a microservice?▼

Kubernetes NetworkPolicy restricts ingress and egress traffic by defining specific endpoint rules. You apply a default-deny-all policy to the namespace, then create explicit allow rules for necessary endpoints to enforce network segmentation.

What is the best way to enforce least-privilege access control in a production Kubernetes cluster?▼

Enforcing least-privilege access control requires configuring Kubernetes RBAC for service accounts with minimal required permissions. This limits cluster attack surfaces by ensuring workloads only access resources explicitly granted.

Do I need to understand Kubernetes resource definitions to apply PodSecurityPolicy?▼

Yes, applying PodSecurityPolicy and Pod Security Standards requires a solid understanding of Kubernetes resource definitions and security best practices. This knowledge ensures correct admission control and pod security standard enforcement.

Can I use this approach to secure Kubernetes clusters for compliance and minimize attack surfaces?▼

Yes, implementing comprehensive Kubernetes security policies including NetworkPolicy, PodSecurityPolicy, and RBAC secures clusters for compliance. This approach minimizes attack surfaces through network isolation and admission control.

Why does my default-deny-all NetworkPolicy block required traffic between namespaces?▼

A default-deny-all NetworkPolicy blocks all ingress and egress traffic by design. You must explicitly define additional NetworkPolicy rules to allow necessary traffic flow between specific namespaces and endpoints.

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