[cka]kodekloud-DaemonSets

1.How many DaemonSets are created in the cluster in all namespaces? Check all namespaces

# k get daemonsets.apps -A

 : -A  모든 네임스페이스 전부 

A) 2 

 

2. Which namespace are the DaemonSets created in?

# k get daemonsets.apps -A

A) kube-system

 

3. Which of the below is a DaemonSet?

# k get daemonsets.apps -A

:  kube-proxy, kube-flannel-ds 중 한가지 

 

A) kube-flannel-ds

 

4. On how many nodes are the pods scheduled by the DaemonSet kube-proxy

# k get daemonsets.apps -A
# k describe daemonsets kube-proxy -n kube-system 

 : 두가지 방법이 있다. 

 : get daemonsets 로 current 수량으로 확인도 가능하고,

 : 좀 더 구체적으로 확인하기 위해 describe 명령어를 통해서도 가능하다. 

 

5. What is the image used by the POD deployed by the kube-flannel-ds DaemonSet?

# k get daemonsets.apps -A
# k describe pods kube-flannel-ds -n kube-system

 A) quay.io/coreos/flannel:v0.13.1-rc1

 

6. Deploy a DaemonSet for FluentD Logging. Use the given specifications.

• Name: elasticsearch

• Namespace: kube-system

• Image: k8s.gcr.io/fluentd-elasticsearch:1.20

# k create deployment elasticsearch -n kube-system --image=k8s.gcr.io/fluentd-elasticsearch:1.20 --dry-run=client -o yaml > elasticsearhc.yaml
# vi elasticsearhc.yaml
 : kind 변경, 외 DaemonSet 형식에 맞게 전부 변경

# k get ds -A 

 완료

 

 Tip) 쿠버 Docs 활용을 잘하자 

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