Certified Kubernetes Administrator v1.21

• https://github.com/cncf/curriculum/blob/master/CKAD_Curriculum_V1.21.pdf

Core Concepts (13%)

• Understand Kubernetes API primitives: kubectl get api-resources
• Create and configure basic Pods: kubectl create, kubectl apply

Configuration (18%)

• Understand ConfigMaps: kubectl describe configmaps
• Understand SecurityContexts: securityContext (Pod)
• Define an application's resource requirements
• Create & consume Secrets: kubectl create | get | describe
• Understand ServiceAccounts

Multi-Container Pods (10%)

• Understand Multi-Container Pod design patters (e.g. ambassador, adapter, sidecar) (Review: https://github.com/dgkanatsios/CKAD-exercises/blob/master/b.multi_container_pods.md)

Pod Design (20%)

• Understand Deployments and how to perform rolling updates: kubectl rolling-update
• Understand Deployments and how to perform rollbacks: Kubectl rollout
• Understand Jobs and CronJobs
• Understand how to use Labels, Selector and Annotations: kubectl label, kubectl annotate, NodeSelector

State Persistence (8%)

• Understand PersistentVolumeClaims for storage

Observability (18%)

• Understand LivenessProbes and ReadinessProbes
• Understand container logging
• Understand how to monitor applications in Kubernetes
• Understand debugging in Kubernetes

Services & Networking (13%)

• Understand Services
• Demonstrate basic understanding of NetworkPolicies

See also

• CKA: v1.28: API, Namespace, Pods, secrets, Services, deployments, nodes, Volumes, Ingress, CKS

https://kubernetes.io/docs/concepts/storage/persistent-volumes/