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Course Outline
Introduction
Cluster Setup
- Utilise network security policies to restrict cluster-level access.
- Apply CIS benchmarks to review the security configuration of Kubernetes components (etcd, kubelet, kube-dns, kube-apiserver).
- Configure Ingress objects with appropriate security controls.
- Protect node metadata and endpoints.
- Minimise the use of and access to GUI elements.
- Verify platform binaries prior to deployment.
Cluster Hardening
- Restrict access to the Kubernetes API.
- Implement Role-Based Access Controls to minimise exposure.
- Carefully manage service accounts (e.g., disable defaults and minimise permissions on newly created accounts).
- Keep Kubernetes up to date with regular updates.
System Hardening
- Reduce the host OS footprint to minimise the attack surface.
- Minimise IAM roles.
- Limit external network access.
- Appropriately utilise kernel hardening tools such as AppArmor and seccomp.
Minimising Microservice Vulnerabilities
- Establish appropriate OS-level security domains (e.g., using PSP, OPA, and security contexts).
- Manage Kubernetes secrets effectively.
- Use container runtime sandboxes in multi-tenant environments (e.g., gVisor, Kata Containers).
- Implement pod-to-pod encryption using mTLS.
Supply Chain Security
- Minimise the base image footprint.
- Secure the supply chain: whitelist allowed image registries, and sign and validate images.
- Utilise static analysis for user workloads (e.g., Kubernetes resources, Dockerfiles).
- Scan images for known vulnerabilities.
Monitoring, Logging, and Runtime Security
- Conduct behavioural analytics of syscall processes and file activities at the host and container levels to detect malicious actions.
- Identify threats within physical infrastructure, applications, networks, data, users, and workloads.
- Detect all phases of an attack, regardless of origin or spread method.
- Perform deep analytical investigations to identify bad actors within the environment.
- Ensure container immutability at runtime.
- Utilise Audit Logs to monitor access.
Summary and Conclusion
Requirements
- CKA (Certified Kubernetes Administrator) certification
Audience
- Kubernetes practitioners
21 Hours
Testimonials (3)
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The knowledge and exchanges with Augustin
