CKA 예제 리마인더 - 17. Multi Container PODs

컨테이너 2개를 가진 멀티컨테이너파드를 만드세요
만약 파드가 crashloopbackoff 상태라면 sleep 1000 명령을 레몬 컨테이너에 추가하세요
Name: yellow

Container 1 Name: lemon

Container 1 Image: busybox

Container 2 Name: gold

Container 2 Image: redis


kubectl run yellow --image=busybox --dry-run=client -o yaml > ./yellow.yaml

생성된 yaml

apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: null
  labels:
    run: yellow
  name: yellow
spec:
  containers:
  - image: busybox
    name: yellow
    resources: {}
  dnsPolicy: ClusterFirst
  restartPolicy: Always
status: {}

lemon 컨테이너에 sleep 1000 커맨드 추가 및 gold 컨테이너 추가

apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: null
  labels:
    run: yellow
  name: yellow
spec:
  containers:
  - image: busybox
    name: lemon
    command:
    - "sleep"
    - "1000"
  - image: redis
    name: gold
    resources: {}
  dnsPolicy: ClusterFirst
  restartPolicy: Always
status: {}

파드에 로그 볼륨을 마운트한 새로운 컨테이너를 만드세요

Name: app

Container Name: sidecar

Container Image: kodekloud/filebeat-configured

Volume Mount: log-volume

Mount Path: /var/log/event-simulator/

Existing Container Name: app

Existing Container Image: kodekloud/event-simulator

apiVersion: v1
kind: Pod
metadata:
  name: app
  namespace: elastic-stack
  labels:
    name: app
spec:
  containers:
  - name: app
    image: kodekloud/event-simulator
    volumeMounts:
    - mountPath: /log
      name: log-volume
  - name: sidecar
    image: kodekloud/filebeat-configured
    volumeMounts:
    - mountPath: /var/log/event-simulator/
      name: log-volume
  volumes:
  - name: log-volume
    hostPath:
      path: /var/log/webapp
      type: DirectoryOrCreate

sidecar 컨테이너 추가 후 replace


app 파드의 /log/app.log 파일을 cat 하세요

kubectl -n elastic-stack exec -it app -- cat /log/app.log