CKA-Exercises
Note: The repository is currently not compelete and we are working on trying to get good content out very soon. Thank you for your patience!
A set of curated exercises to help prepare you for the Certified Kubernetes Administrator Exam by the Cloud Native Computing Foundation
Contributing
Pull Request process
- Fork the repo and create your branch from your forked repo
- Please try to stick to the layout we follow in terms of the README markdown
- Issue that PR
- This will be reviewed by the team and merged
Shortcuts and things to keep in mind when going through this repo
- NS = Namespace
- SA = Service account
- Po = Pod
- NetPol = Network policy
- PSP = Pod security policy
- RBAC = Role-based access control
- k = kubectl
- SVC = Service
Core Concepts
- Some basics of K8s and references to other useful repos
Storage
- 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
- 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
- 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
- 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
- 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
Mock Exam Questions
- Practice mock exam questions.