Kubernetes Security : 5 Best Practices for 4C Security Model

Kubernetes is a popular orchestrator for deploying and scaling containerized applications in production but it's not secure by default. To protect your clusters from attacks, you can follow these best practices: use Role-Based Access Control (RBAC) to control user access; protect the control plane by restricting access to etcd, enabling encryption, and setting up external API server authentication; harden your nodes by monitoring system logs, keeping them updated, and avoiding running other workloads directly on a node; add network security policies to control communication between Pods; use Pod-level security features like security contexts and Pod Security admission rules; and finally, harden your workloads by scanning for vulnerabilities in code and using Kubernetes Secrets to store sensitive data. By following these steps, you can securely run containers in production without worrying about security issues.