Certified Kubernetes Administrator (CKA) Preparation

Seminarziel

The goal of the Certified Kubernetes Administrator (CKA) Preparation  Course is to equip learners with the knowledge and skills necessary to  pass the CKA exam and become proficient Kubernetes administrators. By  covering a wide range of topics related to Kubernetes administration,  the course aims to provide learners with a comprehensive understanding  of Kubernetes architecture, installation, configuration, and management,  as well as more advanced topics such as API access control, Custom  Resources, Operators, and Advanced Networking. Ultimately, the goal is  to help learners develop the expertise necessary to successfully  administer Kubernetes clusters and contribute to the wider Kubernetes  community.

Inhalt

• Introduction to Kubernetes
  • Understanding containerization
  • Kubernetes architecture
  • Kubernetes components and their responsibilities
• Installing Kubernetes
  • Kubernetes installation options
  • Installing Kubernetes with kubeadm
• Kubernetes Pods
  • What are Pods?
  • Pod lifecycle management
  • Pod design and best practices
• Kubernetes Deployments
  • Understanding Deployments
  • Managing Deployments
  • Rolling updates and rollbacks
• Kubernetes Services
  • What are Services?
  • Service types and their use cases
  • Service discovery and load balancing
• Kubernetes Storage
  • Understanding storage in Kubernetes
  • Persistent Volumes and Persistent Volume Claims
  • Storage Classes and dynamic provisioning
• Kubernetes Configuration
  • Understanding Kubernetes ConfigMaps
  • Managing ConfigMaps and Secrets
  • Using environment variables in Kubernetes
• Kubernetes Security
  • Security best practices in Kubernetes
  • Kubernetes RBAC
  • Network policies
• Kubernetes Networking
  • Kubernetes networking basics
  • Pod-to-Pod communication
  • Services and networking
• Kubernetes Troubleshooting
  • Troubleshooting Kubernetes components
  • Debugging Pods and Services
  • Kubernetes logs and events
• Kubernetes API Server
  • Understanding the Kubernetes API server
  • API groups and versions
  • API access control and authentication
• Kubernetes Custom Resources
  • Custom Resource Definitions (CRDs)
  • Creating and managing Custom Resources
• Kubernetes Operators
  • Introduction to Operators
  • Operator Framework and SDKs
  • Creating and managing Operators
• Advanced Kubernetes Networking
  • Ingress controllers and Ingress resources
  • Load balancing with Kubernetes
  • Network policies and advanced networking concepts
    
    

Typical Exam Questions

• Create a Deployment with three replicas named "nginx-deployment" using the "nginx" container image and expose it as a Service named "nginx-service" on port 80.
• Scale the "nginx-deployment" to five replicas using the kubectl command.
• Create a PersistentVolumeClaim named "my-pvc" with a storage capacity of 10Gi and access mode "ReadWriteOnce".
• Configure a Pod to run two containers, "nginx" and "busybox", and set the "nginx" container to use a ConfigMap named "nginx-config".
• Troubleshoot a failed Pod by examining its logs and identifying the cause of the failure.
• Secure a Kubernetes cluster by configuring Role-Based Access Control (RBAC) to grant a user specific permissions to perform certain actions.
• Create a Kubernetes CronJob that runs a batch job every five minutes and writes output to a log file.
• Create a DaemonSet that ensures that one instance of a Pod is running on each node in the cluster.