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learning-cka

Learning content for the Certified Kubernetes Administrator - CKA based in Kubernetes 1.24.x

Tmux

Install and use tmux.

Create Cluster

Create cluster with informations in this page.

Learning Kubernetes

Exercises and tips about CKA

Domains & Competencies:

Storage 10%

  • Understand storage classes, persistent volumes
  • Understand volume mode, access modes and reclaim policies for volumes
  • Understand persistent volume claims primitive
  • Know how to configure applications with persistent storage

Troubleshooting 30%

  • Evaluate cluster and node logging
  • Understand how to monitor applications
  • Manage container stdout & stderr logs
  • Troubleshoot application failure
  • Troubleshoot cluster component failure
  • Troubleshoot networking

Workloads & Scheduling 15%

  • Understand deployments and how to perform rolling update and rollbacks
  • Use ConfigMaps and Secrets to configure applications
  • Know how to scale applications
  • Understand the primitives used to create robust, self-healing, application deployments
  • Understand how resource limits can affect Pod scheduling
  • Awareness of manifest management and common templating tools

Cluster Architecture, Installation & Configuration 25%

  • Manage role based access control (RBAC)
  • Use Kubeadm to install a basic cluster
  • Manage a highly-available Kubernetes cluster
  • Provision underlying infrastructure to deploy a Kubernetes cluster
  • Perform a version upgrade on a Kubernetes cluster using Kubeadm
  • Implement etcd backup and restore

Services & Networking 20%

  • Understand host networking configuration on the cluster nodes
  • Understand connectivity between Pods
  • Understand ClusterIP, NodePort, LoadBalancer service types and endpoints
  • Know how to use Ingress controllers and Ingress resources
  • Know how to configure and use CoreDNS
  • Choose an appropriate container network interface plugin

Exercises and simulators

OLD versions of CKA:

Tips and courses

Tools

License

GNUv3 - General Public License version 3

Contributors