Kubernetes Cluster Security Hardening Checklist
This Kubernetes cluster security hardening checklist ensures compliance with NSA/CISA Kubernetes Hardening Guidance (August 2022), CIS Kubernetes Benchmark v1.8, NIST SP 800-190 Application Container Security Guide, and MITRE ATT&CK for Containers Matrix. Designed for platform/DevSecOps engineers to harden production Kubernetes clusters.
- Industry: Telecommunications & IT
- Frequency: Monthly
- Estimated Time: 45-60 minutes
- Role: Platform Engineer / DevSecOps Lead / Kubernetes Administrator
- Total Items: 19
- Compliance: NSA/CISA Kubernetes Hardening Guidance v1.2 (2022), CIS Kubernetes Benchmark v1.8, NIST SP 800-190 Application Container Security, MITRE ATT&CK for Containers Matrix, OPA Gatekeeper Policy Framework
API Server Hardening
Kubernetes API server security configuration.
- RBAC authorization mode enabled (--authorization-mode=RBAC)?
- Anonymous API authentication disabled (--anonymous-auth=false)?
- API server using TLS 1.2+ with valid certificates?
- API server audit logging enabled with policy file configured?
- Admission controllers: NodeRestriction, PodSecurity, LimitRanger active?
RBAC and Access Controls
Role binding review and cluster-admin minimization.
- ClusterRoleBinding to cluster-admin restricted to essential users only?
- No roles with wildcard (*) verbs/resources unless absolutely required?
- Auto-mounting of service account tokens disabled where not needed?
- RBAC roles and bindings reviewed quarterly?
Workload and Pod Security
Pod Security Standards and container runtime restrictions.
- Pod Security Standards enforced (baseline or restricted) via admission?
- No production workloads running as privileged containers?
- Containers use readOnlyRootFilesystem where possible?
- CPU and memory limits set on all production pods?
- Kubernetes NetworkPolicies enforcing default-deny and least-privilege?
Image Security and Secrets Management
Container image scanning and Kubernetes secrets handling.
- All container images scanned for CVEs before deployment?
- Image admission policy blocking images with critical unpatched CVEs?
- K8s Secrets encrypted at rest in etcd (EncryptionConfiguration)?
- Sensitive secrets managed in external vault (HashiCorp, AWS SSM, Azure Key Vault)?
- Kubernetes Security Notes
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Why Use This Kubernetes Cluster Security Hardening Checklist?
This kubernetes cluster security hardening checklist helps telecommunications & it teams maintain compliance and operational excellence. Designed for platform engineer / devsecops lead / kubernetes administrator professionals, this checklist covers 19 critical inspection points across 4 sections. Recommended frequency: monthly.
Ensures compliance with NSA/CISA Kubernetes Hardening Guidance v1.2 (2022), CIS Kubernetes Benchmark v1.8, NIST SP 800-190 Application Container Security, MITRE ATT&CK for Containers Matrix, OPA Gatekeeper Policy Framework. Regulatory-aligned for audit readiness and inspection documentation.
Frequently Asked Questions
What is a Kubernetes Cluster Security Hardening Checklist?
A Kubernetes Cluster Security Hardening Checklist is a standardized inspection form used by platform engineer / devsecops lead / kubernetes administrator to ensure consistent telecommunications & it operations. It contains 24 inspection points organized into 4 sections. FREE Kubernetes cluster security hardening checklist PDF. RBAC, API server hardening, Network Policies, Pod Security Standards, image scanning, secrets management, runtime security, and NSA/CISA K8s security guidance. 36+ K8s security configuration checks. Download FREE template now.
How often should I use this telecommunications & it checklist?
This checklist is designed to be completed monthly. Regular use ensures compliance with NSA/CISA Kubernetes Hardening Guidance v1.2 (2022) and CIS Kubernetes Benchmark v1.8 and helps identify issues before they become problems.
Can I download this Kubernetes Cluster Security Hardening Checklist as a PDF?
Yes, you can download this checklist as a FREE PDF for printing or offline use. The checklist includes 24 fields across 4 sections and typically takes 45-60 minutes to complete.
What compliance standards does this checklist cover?
This checklist helps ensure compliance with NSA/CISA Kubernetes Hardening Guidance v1.2 (2022), CIS Kubernetes Benchmark v1.8, NIST SP 800-190 Application Container Security, MITRE ATT&CK for Containers Matrix, OPA Gatekeeper Policy Framework. Following these standards protects your organization and ensures best practices.
How do I complete this telecommunications & it inspection checklist?
Begin by completing the header fields for Cluster Name, Review Date, Platform Engineer Name, Kubernetes Version, and K8s Distribution. Work through each of the 4 sections, marking items Yes or No as applicable. Add notes for any issues found. The entire process takes approximately 45 to 60 minutes.
What are the key sections in this telecommunications & it checklist?
This telecommunications & it checklist is organized into 4 key sections: API Server Hardening, RBAC and Access Controls, Workload and Pod Security, Image Security and Secrets Management. Each section contains specific inspection points that platform engineer / devsecops lead / kubernetes administrator must verify. The structured layout ensures nothing is missed during telecommunications & it inspections and makes the process efficient, typically taking 45-60 minutes to complete.
Who should use this Kubernetes Cluster Security Hardening Checklist?
This checklist is primarily designed for platform engineer / devsecops lead / kubernetes administrator working in telecommunications & it operations. However, it is also valuable for quality assurance teams, safety officers, compliance managers, and supervisors who need to verify that telecommunications & it standards are being met. Organizations of all sizes can benefit from using this Kubernetes Cluster Security Hardening Checklist to maintain consistency and accountability.