How do you secure a Kubernetes cluster and the applications hosted within it? What security measures would you implement?

Question

Accepted Answer

Securing a Kubernetes cluster involves implementing various security measures to protect both the cluster and the applications hosted on it.

Implement RBAC (Role-Based Access Control) to control access to resources within the cluster
Enable network policies to restrict communication between pods
Use pod security policies to define security settings for pods
Regularly update Kubernetes and application components to patch security vulnerabilities
Implement container image scanning to detect and prevent vulnerabilities in images
Use secrets management tools to securely store and manage sensitive information such as passwords and API keys
Enable auditing and logging to monitor and track activities within the cluster
Implement network encryption using tools like TLS to secure communication between components