K8s Examples

This repo has some kubernetes config files use to study for the Kubernetes Certified Application Developer (CKAD)

Questions

Medium CKAD Questions

Common/Useful commands:

Get all the pods, services, statefulsets, etc.

kubectl get all

Get all the namespaces:

kubectl get ns

Create a namespace:

kubectl create ns <namespace-name>

Apply/Create a K8s manifest:

kubectl -n <namespace-name> apply -f <file>
kubectl apply -f <file>
kubectl create -f <file>

Describe a resource:

kubectl -n <namespace-name> describe <kind> <name>

Show pod logs:

kubectl -n <namespace-name> logs <pod-name>

Exec a pod sh:

kubectl -n <namespace-name> exec -it <pod-name> -- sh

Delete a resource:

kubectl -n <namespace-name> delete <kind> <name>
kubectl delete <kind> <name>
kubectl delete -f <file>

Get nodes ip:

kubectl get nodes -o wide

Apply kustomization.yaml:

kubectl apply -k .
or
kustomize build . | kubectl apply -f -