What tools and methods have you used to ensure security when managing a Kubernetes cluster?

To ensure security when managing a Kubernetes cluster, I employed the following methods:

• Authentication and Authorization: Using RBAC (Role-Based Access Control) to restrict user and service permissions.
• Using TLS: All communications between cluster components are encrypted with TLS.
• Secrets and Configurations: Sensitive data is stored in Kubernetes Secrets with restricted access.
• Network Policies: Limiting network traffic between pods using Network Policies.
• Updates and Patches: Regularly updating cluster components to fix vulnerabilities.
• Monitoring and Auditing: Enabling user action audits and security event monitoring.

These measures help minimize risks and control access to the cluster.