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CKAD Self-Study Mod 3

CKAD Self-Study Mod 3

In this module of the RX-M online CKAD prep course, we will be covering the pod design and state persistence topics identified by the CNCF CKAD Exam Curriculum. If you are not already familiar with the curriculum, take a moment to familiarize yourself as you will be required to demonstrate knowledge of each topic in order to pass the exam.

Resource Requests and Limits

Resource requests and limits are set on a per-container basis within a pod. By specifying a resource request we tell the Kubernetes scheduler the minimum amount of

LimitRanges

Users who have control over their namespaces can also define a LimitRange, which is an API object that ensures pods maintain a minimum and maximum

Namespace Quotas

In addition to limiting resources for containers in pods, users also have options to control the resources on the Kubernetes namespace level. Namespace quotas are

ConfigMaps

ConfigMaps are decoupled configuration artifacts keeping containerized applications portable.The ConfigMap API resource provides mechanisms to inject containers with configuration data whilekeeping containers agnostic of Kubernetes.

Secrets

Secrets hold sensitive information, such as passwords, OAuth tokens, and SSH keys. Putting this information in a secret is safer and more flexible than putting

Service Accounts

Service Accounts are users managed by the Kubernetes API that provide processes in a pod with an identity in the cluster. Service Accounts are bound

SecurityContext

This is a setting in a PodSpec that enhances security for one or all of the containers in a pod and have the following settings: