Certified Kubernetes Administrator
About CKA
The purpose of the Certified Kubernetes Administrator (CKA) program is to provide assurance that CKAs have the skills, knowledge, and competency to perform the responsibilities of Kubernetes administrators. Reference: CNCF-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
ConfigMapsandSecretsto configure applicationsKnow 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
Kubeadmto install a basic clusterManage a highly-available Kubernetes cluster
Provision underlying infrastructure to deploy a Kubernetes cluster
Perform a version upgrade on a Kubernetes cluster using
KubeadmImplement
etcdbackup 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
To learn more about CKA, visit: https://training.linuxfoundation.org/certification/certified-kubernetes-administrator-cka/
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