Kubernetes Hardening Agent Skill
Implement Kubernetes security contexts, Pod Security Standards, and network policies. Secure cluster components and workloads. Use when hardening Kubernetes deployments or meeting security compliance.
Install
one command, takes just this skill from the repositorynpx skills add https://github.com/BagelHole/DevOps-Security-Agent-Skills --skill kubernetes-hardeningThe instruction itself
8 sections, as written by the authorKubernetes Hardening
Secure Kubernetes clusters and workloads.
When to Use This Skill
Use this skill when:
- Hardening Kubernetes clusters
- Implementing Pod Security Standards
- Configuring network policies
- Meeting security compliance
Pod Security Standards
# Namespace with restricted policy
apiVersion: v1
kind: Namespace
metadata:
name: production
labels:
pod-security.kubernetes.io/enforce: restricted
pod-security.kubernetes.io/audit: restricted
pod-security.kubernetes.io/warn: restricted
Security Context
apiVersion: v1
kind: Pod
metadata:
name: secure-pod
spec:
securityContext:
runAsNonRoot: true
runAsUser: 1000
runAsGroup: 1000
fsGroup: 1000
seccompProfile:
type: RuntimeDefault
containers:
- name: app
image: myapp:latest
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
capabilities:
drop: ["ALL"]
Network Policies
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: default-deny-all
spec:
podSelector: {}
policyTypes:
- Ingress
- Egress
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: allow-web
spec:
podSelector:
matchLabels:
app: web
ingress:
- from:
- podSelector:
matchLabels:
app: frontend
ports:
- port: 8080
RBAC
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
name: app-reader
rules:
- apiGroups: [""]
resources: ["pods", "services"]
verbs: ["get", "list"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: app-reader-binding
subjects:
- kind: ServiceAccount
name: myapp
roleRef:
kind: Role
name: app-reader
apiGroup: rbac.authorization.k8s.io
Best Practices
- Enable Pod Security Standards
- Implement network policies
- Use RBAC with least privilege
- Enable audit logging
- Secure etcd with encryption
- Use service mesh for mTLS
- Regular security scanning
Related Skills
- kubernetes-ops - K8s operations
- container-hardening - Container security
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How to use it
Take bagelhole/kubernetes-hardening from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.