[CKA] multi-container Pod 생성

multi-container Pod 생성

 

multi-container Pod : 여러개의 컨테이너로 구성된 Pod를 동작

 

create pod 
 - 작업 클러스터 : hk8s
 - Create a pod name lab004 with 3 containers running, nginx, redis, memcached

# 작업 클러스터 변경
kubectl config use-text hk8s

# yaml 파일 생성
kubectl run lab004 --image=nginx --dry-run=client -o yaml
apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: null
  labels:
    run: lab004
  name: lab004
spec:
  containers:
  - image: nginx
    name: lab004
    resources: {}
  dnsPolicy: ClusterFirst
  restartPolicy: Always
status: {}

kubectl run lab004 --image=nginx --dry-run=client -o yaml > multi.yaml

vi multi.yaml
apiVersion: v1
kind: Pod
metadata:
  name: lab004
spec:
  containers:
  - image: nginx
    name: nginx
  - image: redis
    name: redis
  - image: memcached
    name: memcached

# pod 실행
kubectl apply -f multi.yaml 
pod/lab004 created

# pod 실행 확인
kubectl get pods
NAME     READY   STATUS    RESTARTS   AGE
lab004   3/3     Running   0          3m3s
 
kubectl describe pod lab004 
.....
Events:
  Type    Reason     Age   From               Message
  ----    ------     ----  ----               -------
  Normal  Scheduled  24m   default-scheduler  Successfully assigned default/lab004 to node2.example.com
  Normal  Pulling    24m   kubelet            Pulling image "nginx"
  Normal  Pulled     23m   kubelet            Successfully pulled image "nginx" in 1m0.394469503s
  Normal  Created    23m   kubelet            Created container nginx
  Normal  Started    23m   kubelet            Started container nginx
  Normal  Pulling    23m   kubelet            Pulling image "redis"
  Normal  Pulled     22m   kubelet            Successfully pulled image "redis" in 55.891927879s
  Normal  Created    22m   kubelet            Created container redis
  Normal  Started    22m   kubelet            Started container redis
  Normal  Pulling    22m   kubelet            Pulling image "memcached"
  Normal  Pulled     22m   kubelet            Successfully pulled image "memcached" in 29.051193886s
  Normal  Created    22m   kubelet            Created container memcached
  Normal  Started    22m   kubelet            Started container memcached

 

 

[참고]

- 유투브 따배시