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Course Outline
Cluster Setup
- Implement network security policies to restrict cluster-level access.
- Utilise the CIS benchmark to review the security configuration of Kubernetes components (etcd, kubelet, kubedns, kubeapi).
- Configure Ingress objects appropriately with security controls.
- Safeguard node metadata and endpoints.
- Limit the usage of, and access to, GUI elements.
- Verify platform binaries prior to deployment.
Cluster Hardening
- Limit access to the Kubernetes API.
- Apply Role Based Access Controls to minimise exposure.
- Exercise caution when using service accounts, for example by disabling defaults and minimising permissions on newly created accounts.
- Ensure frequent updates to Kubernetes.
System Hardening
- Reduce the host OS footprint to minimise the attack surface.
- Limit IAM roles.
- Minimise external network access.
- Appropriately deploy kernel hardening tools such as AppArmor and seccomp.
Minimise Microservice Vulnerabilities
- Establish appropriate OS-level security domains, for example using PSP, OPA, or security contexts.
- Manage Kubernetes secrets effectively.
- Employ 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 by whitelisting allowed image registries, and signing and validating images.
- Apply static analysis to 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 level to identify malicious activities.
- Detect threats within physical infrastructure, applications, networks, data, users, and workloads.
- Identify all phases of an attack, regardless of its origin or method of spread.
- Carry out deep analytical investigations to identify and profile bad actors within the environment.
- Ensure the immutability of containers at runtime.
- Utilise audit logs to monitor access.
Requirements
- CKA (Certified Kubernetes Administrator) certification
Audience
- Kubernetes practitioners
21 Hours
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