the Kubernetes Developer Certified Professional
certification validates skills related to developing, deploying, and managing applications in a Kubernetes environment. The main skills it assesses include:
1. Fundamental Kubernetes Knowledge:
Understanding the Kubernetes orchestration system.
Using core components: Pods, Deployments, Services, ConfigMaps, Secrets, Volumes, etc.
Configuring clusters for development.
2. Application Development for Kubernetes:
Building containerized applications using tools like Docker or Podman.
Deploying applications in a Kubernetes cluster.
Creating and managing YAML manifests for configuring deployments and services.
3. Configuration and State Management:
Using ConfigMaps and Secrets to manage configurations and sensitive data.
Defining and managing StatefulSets for applications requiring persistence.
Handling scalability and replication of applications.
4. Implementing Advanced Patterns:
Using Ingress for managing HTTP and HTTPS traffic.
Implementing deployment strategies such as Rolling Updates, Blue-Green Deployments, and Canary Releases.
Configuring affinity policies, tolerations, and node constraints.
5. Debugging and Monitoring Applications:
Using tools and CLI commands for troubleshooting.
Monitoring logs of containers and deployed applications.
Setting up Health Probes (liveness and readiness) to ensure application availability.
6. Networking and Connectivity Management:
Configuring ClusterIP, NodePort, and LoadBalancer services.
Using network policies to control pod-to-pod communication.
7. Kubernetes Security:
Managing roles and permissions with RBAC (Role-Based Access Control).
Securing applications with Network Policies.
Properly using Secrets to ensure data confidentiality.
8. Integration and Automation:
Working with CI/CD pipelines for continuous deployment.
Using integration tools like Helm to manage packages and complex deployments.
This certification validates not only theoretical knowledge but also practical skills to apply these competencies in real-world Kubernetes development and deployment scenarios.
