[cka] Monitor Cluster Components

 

 

 

1, 2, 3,4  모니터링 툴을 위한 api 준비과정.

 

사용 API : git clone https://github.com/kodekloudhub/kubernetes-metrics-server.git 

Deploy the metrics-server by creating all the components downloaded.

Run the kubectl create -f . command from within the downloaded repository.

 

 

controlplane kubernetes-metrics-server ➜  kubectl top node

 

5. Identify the node that consumes the most CPU(cores).

 

controlplane kubernetes-metrics-server on  master ➜  k top nodes
NAME           CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   
controlplane   238m         0%     1116Mi          0%        
node01         26m          0%     359Mi           0%

 

answer : controlplane

 

6. Identify the node that consumes the most Memory(bytes).
- 위 지표에서 확인가능하다.

answer : controlplane

 

7.  Identify the POD that consumes the most Memory(bytes) in default namespace.

 

controlplane kubernetes-metrics-server on  master ➜  kubectl top pod
NAME       CPU(cores)   MEMORY(bytes)   
elephant   14m          32Mi            
lion       1m           18Mi            
rabbit     104m         252Mi

 

answer : rabbit

 

8. Identify the POD that consumes the least CPU(cores) in default namespace.

- 위 지표에서 확인 가능하다.

 

answe. :lion