Kubernetes provides a robust platform for container orchestration, but securing it requires careful configuration and best practices. Below are key security recommendations to protect your cluster:

1. Enable Role-Based Access Control (RBAC)

  • Implement strict access controls using Kubernetes RBAC.
  • Limit permissions for service accounts and users.
  • Use kubectl auth can-i to verify permissions before granting them.
Kubernetes RBAC Implementation

2. Network Security

  • Use Network Policies to isolate pods and restrict traffic.
  • Enable Pod Security Admission (PSA) to enforce pod security policies.
  • Deploy ingress controllers with TLS encryption for external traffic.
Kubernetes Network Policies

3. Secret Management

  • Store sensitive data (e.g., passwords, tokens) in secrets or configmaps.
  • Avoid hardcoding credentials in manifests.
  • Use Vault or AWS Secrets Manager for centralized secret management.
  • Rotate secrets regularly and monitor access.

4. Image Security

  • Scan container images for vulnerabilities using tools like Trivy or Clair.
  • Use private registries and enforce image signing.
  • Restrict runtime execution with AppArmor or SELinux policies.
Container Image Scanning

5. Audit and Monitoring

  • Enable audit logs to track API requests.
  • Integrate with monitoring tools like Prometheus and Grafana.
  • Use Stackdriver or ELK stack for log analysis.
  • Set up alerts for suspicious activities.

For deeper insights, refer to our Kubernetes Security Best Practices guide. 🚀

Securing Pods with TLS