Kubernetes security context, security policy, and network policy – Kubernetes security guide (part 2).

In this guide, various Kubernetes security mechanisms are explored, emphasizing the configuration of security at the pod level using Kubernetes Security Context, Security Policy, and Network Policy resources. It details how to define container privileges, permissions, capabilities, and network communication rules to enhance security, including the use of admission controllers to enforce policies and restrict unauthorized access. The document also covers Kubernetes resource allocation management to prevent resource abuse and ensure efficient utilization, highlighting the importance of setting requests and limits on resources like CPU and memory. Additionally, it introduces third-party tools and plugins that extend Kubernetes capabilities, such as Sysdig Falco for runtime security monitoring and third-party network plugins for enforcing network policies. The guide serves as a comprehensive resource for leveraging Kubernetes orchestration capabilities to safeguard containerized applications, while also suggesting further exploration into securing essential Kubernetes components like etcd, kubelet, and Docker registry.

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