Awesome Certified Kubernetes Administrator

• Curriculum: Open Source Curriculum for CNCF Certification Courses

Practice Exam

• CKA Practice Environment: A sample lab test environment to help in preparation of CKA certification. Arush Salil
• CKAD Exercises: A set of exercises to prepare for Certified Kubernetes Application Developer. Dimitris-Ilias Gkanatsios

Articles

Etcd

• Play with Etcd
• Interacting with etcd
• etcdctl examples

Security

• Kubernetes security guide. A series of articles by Mateo Burillo in four parts:
  • Chapter 1: Understanding Kubernetes RBAC and TLS certificates.
  • Chapter 2: Implementing security at the pod level: Kubernetes Security Context, Kubernetes Security Policy and Kubernetes Network Policy.
  • Chapter 3: Securing Kubernetes components: kubelet, Kubernetes etcd and Docker registry.
  • Chapter 4: Hardening kube-system components.