CKA 無料問題集「Linux Foundation Certified Kubernetes Administrator (CKA) Program」
Create a busybox pod and add "sleep 3600" command
正解：
kubectl run busybox --image=busybox --restart=Never -- /bin/sh -c
"sleep 3600"
"sleep 3600"
Score: 13%
Task
A Kubernetes worker node, named wk8s-node-0 is in state NotReady. Investigate why this is the case, and perform any appropriate steps to bring the node to a Ready state, ensuring that any changes are made permanent.
Task
A Kubernetes worker node, named wk8s-node-0 is in state NotReady. Investigate why this is the case, and perform any appropriate steps to bring the node to a Ready state, ensuring that any changes are made permanent.
正解：
Solution:
sudo -i
systemctl status kubelet
systemctl start kubelet
systemctl enable kubelet
sudo -i
systemctl status kubelet
systemctl start kubelet
systemctl enable kubelet
Create a file:
/opt/KUCC00302/kucc00302.txt that lists all pods that implement service baz in namespace development.
The format of the file should be one pod name per line.
/opt/KUCC00302/kucc00302.txt that lists all pods that implement service baz in namespace development.
The format of the file should be one pod name per line.
正解：
solution
Print pod name and start time to "/opt/pod-status" file
正解：
kubect1 get pods -o=jsonpath='{range
.items[*]}{.metadata.name}{"\t"}{.status.podIP}{"\n"}{end}'
.items[*]}{.metadata.name}{"\t"}{.status.podIP}{"\n"}{end}'
Create a pod with image nginx called nginx and allow traffic on port 80
正解：
kubectl run nginx --image=nginx --restart=Never --port=80
Create a nginx pod with label env=test in engineering namespace
正解：
kubectl run nginx --image=nginx --restart=Never --labels=env=test --namespace=engineering --dry-run -o yaml > nginx-pod.yaml kubectl run nginx --image=nginx --restart=Never --labels=env=test --namespace=engineering --dry-run -o yaml | kubectl create -n engineering -f - YAML File:
apiVersion: v1
kind: Pod
metadata:
name: nginx
namespace: engineering
labels:
env: test
spec:
containers:
- name: nginx
image: nginx
imagePullPolicy: IfNotPresent
restartPolicy: Never
kubectl create -f nginx-pod.yaml
apiVersion: v1
kind: Pod
metadata:
name: nginx
namespace: engineering
labels:
env: test
spec:
containers:
- name: nginx
image: nginx
imagePullPolicy: IfNotPresent
restartPolicy: Never
kubectl create -f nginx-pod.yaml