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CKA Services and Networking

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Practice Drill

Run the following command: kubectl run --generator run-pod/v1 --image nginx nginx-drill Create a NodePort Service that allows you to send a curl...

Secure Persistent Key Value Store

The persistent key-value store in Kubernetes is etcd. Only the API server has access to the etcd instance running in a cluster. Access to etcd is...

Security Contexts

Security contexts define privilege and access control settings for a Pod or Container. A securityContext array in a container spec under a pod...

Work with Images Securely

Image security is handled in different ways. One way is to control access to private repositories using imagePullSecret, which contains the...

Service Discovery with CoreDNS

Kubernetes uses CoreDNS for DNS-based service discovery. CoreDNS is flexible and changes can be made in the ConfigMap for CoreDNS. Every Service is...

Services and Other Network Primitives

A Service is an abstraction of a logical set of pods and a policy that defines inbound and network access. A service uses a selector to target pods...