How do you implement Kubernetes security best practices and Pod Security Standards?

Kubernetes security requires implementing defense-in-depth strategies across cluster, workload, and network layers using Pod Security Standards and security policies.\n\nPod Security Standards:\n• Privileged: Unrestricted policy (avoid in production)\n• Baseline: Minimally restrictive, prevents known privilege escalations\n• Restricted: Heavily restricted, follows pod hardening best practices\n\nSecurity Implementation:\n• RBAC: Role-based access control\n• Network Policies: Traffic segmentation\n• Admission Controllers: Policy enforcement\n• Image scanning: Vulnerability detection\n• Secrets management: Encrypted storage\n\nExample Pod Security Policy:\napiVersion: v1\nkind: Namespace\nmetadata:\n name: secure-namespace\n labels:\n pod-security.kubernetes.io/enforce: restricted\n pod-security.kubernetes.io/audit: restricted\n pod-security.kubernetes.io/warn: restricted\n\nSecurity Best Practices:\n• Run containers as non-root\n• Use read-only root filesystems\n• Drop unnecessary capabilities\n• Implement resource limits\n• Regular security audits\n• Enable audit logging\n• Use service mesh for mTLS