Certified Kubernetes Application Developer

About CKAD

CKAD Badge Reference: https://www.credly.com/org/the-linux-foundation/badge/ckad-certified-kubernetes-application-developer

The Certified Kubernetes Application Developer (CKAD) exam certifies that users can design, build, configure, and expose cloud native applications for Kubernetes. The certification program allows users to demonstrate their competence in a hands-on, command-line environment. Reference: CNCF-CKAD

Domains & Competencies

Application Design and Build 20%

• Define, build and modify container images

• Choose and use the right workload resource (Deployment, DaemonSet, CronJob, etc.)

• Understand multi-container Pod design patterns (e.g. sidecar, init and others)

• Utilize persistent and ephemeral volumes

Application Deployment 20%

• Use Kubernetes primitives to implement common deployment strategies (e.g. blue/green or canary)

• Understand Deployments and how to perform rolling updates

• Use the Helm package manager to deploy existing packages

• Kustomize

Application Observability and Maintenance 15%

• Understand API deprecations

• Implement probes and health checks

• Use built-in CLI tools to monitor Kubernetes applications

• Utilize container logs

• Debugging in Kubernetes

Application Environment, Configuration and Security 25%

• Discover and use resources that extend Kubernetes (CRD, Operators)

• Understand authentication, authorization and admission control

• Understand requests, limits, quotas

• Understand ConfigMaps

• Define resource requirements

• Create & consume Secrets

• Understand ServiceAccounts

• Understand Application Security (SecurityContexts, Capabilities, etc.)

Services and Networking 20%

• Demonstrate basic understanding of NetworkPolicies

• Provide and troubleshoot access to applications via services

• Use Ingress rules to expose applications

To learn more about CKAD, visit: https://training.linuxfoundation.org/certification/certified-kubernetes-application-developer-ckad/