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Apr 25. 2022
174. CLI로 GKE클러스터 생성,배포(4/4)
<1> GKE 클러스터 생성
<2> 디플로이 먼트 생성
<3> 확장
<4> 롤링 업데이트
<5> 카나리 배포
<6> 블루 그린 배포
<1> GKE 클러스터 생성
1
gcloud auth list
gcloud config list project
gcloud config set compute/zone us-central1-a
2
gcloud container clusters create test1 --num-nodes 3
(10분 소요)
<2> 디플로이 먼트 생성
1
새 터미널에서 모니터링
watch -d kubectl get deploy,replicasets,svc,pods
2
kubectl create -f deployments/auth.yaml
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/auth 1/1 1 1 85s
NAME DESIRED CURRENT READY AGE
replicaset.apps/auth-85957c88d8 1 1 1 86s
NAME READY STATUS RESTARTS AGE
pod/auth-85957c88d8-j5q8k 1/1 Running 0 86s
3
서비스 생성
kubectl create -f services/auth.yaml
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/auth 1/1 1 1 3m59s
NAME DESIRED CURRENT READY AGE
replicaset.apps/auth-85957c88d8 1 1 1 3m59s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/auth ClusterIP 10.116.15.239 <none> 80/TCP 48s
service/kubernetes ClusterIP 10.116.0.1 <none> 443/TCP 9m4s
NAME READY STATUS RESTARTS AGE
pod/auth-85957c88d8-j5q8k 1/1 Running 0 4m
4
hello 디플로이먼트와 서비스 생성?
kubectl create -f deployments/hello.yaml
kubectl create -f services/hello.yaml
watch -d kubectl get deploy,replicasets,svc,pods
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/auth 1/1 1 1 5m23s
deployment.apps/hello 3/3 3 3 41s
NAME DESIRED CURRENT READY AGE
replicaset.apps/auth-85957c88d8 1 1 1 5m23s
replicaset.apps/hello-6c595f956c 3 3 3 41s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/auth ClusterIP 10.116.15.239 <none> 80/TCP 2m12s
service/hello ClusterIP 10.116.6.27 <none> 80/TCP 41s
service/kubernetes ClusterIP 10.116.0.1 <none> 443/TCP 10m
NAME READY STATUS RESTARTS AGE
pod/auth-85957c88d8-j5q8k 1/1 Running 0 5m24s
pod/hello-6c595f956c-2x4tf 1/1 Running 0 42s
pod/hello-6c595f956c-8lkb9 1/1 Running 0 42s
pod/hello-6c595f956c-qtt78 1/1 Running 0 42s
5
fornt ?
kubectl create secret generic tls-certs --from-file tls/
kubectl create configmap nginx-frontend-conf --from-file=nginx/frontend.conf
kubectl create -f deployments/frontend.yaml
kubectl create -f services/frontend.yaml
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/auth 1/1 1 1 9m2s
deployment.apps/frontend 1/1 1 1 49s
deployment.apps/hello 3/3 3 3 4m20s
NAME DESIRED CURRENT READY AGE
replicaset.apps/auth-85957c88d8 1 1 1 9m2s
replicaset.apps/frontend-6869899d96 1 1 1 49s
replicaset.apps/hello-6c595f956c 3 3 3 4m20s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/auth ClusterIP 10.116.15.239 <none> 80/TCP 5m50s
service/frontend LoadBalancer 10.116.10.50 34.133.202.41 443:32695/TCP 48s
service/hello ClusterIP 10.116.6.27 <none> 80/TCP 4m19s
service/kubernetes ClusterIP 10.116.0.1 <none> 443/TCP 14m
NAME READY STATUS RESTARTS AGE
pod/auth-85957c88d8-j5q8k 1/1 Running 0 9m2s
pod/frontend-6869899d96-frvdk 1/1 Running 0 49s
pod/hello-6c595f956c-2x4tf 1/1 Running 0 4m20s
pod/hello-6c595f956c-8lkb9 1/1 Running 0 4m20s
pod/hello-6c595f956c-qtt78 1/1 Running 0 4m20s
<3> 확장
1
kubectl scale deployment hello --replicas=5
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/auth 1/1 1 1 11m
deployment.apps/frontend 1/1 1 1 3m46s
deployment.apps/hello 5/5 5 5 7m17s
NAME DESIRED CURRENT READY AGE
replicaset.apps/auth-85957c88d8 1 1 1 11m
replicaset.apps/frontend-6869899d96 1 1 1 3m46s
replicaset.apps/hello-6c595f956c 5 5 5 7m17s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/auth ClusterIP 10.116.15.239 <none> 80/TCP 8m47s
service/frontend LoadBalancer 10.116.10.50 34.133.202.41 443:32695/TCP 3m45s
service/hello ClusterIP 10.116.6.27 <none> 80/TCP 7m16s
service/kubernetes ClusterIP 10.116.0.1 <none> 443/TCP 17m
NAME READY STATUS RESTARTS AGE
pod/auth-85957c88d8-j5q8k 1/1 Running 0 11m
pod/frontend-6869899d96-frvdk 1/1 Running 0 3m46s
pod/hello-6c595f956c-2x4tf 1/1 Running 0 7m17s
pod/hello-6c595f956c-8lkb9 1/1 Running 0 7m17s
pod/hello-6c595f956c-kc6rv 1/1 Running 0 25s
pod/hello-6c595f956c-qtt78 1/1 Running 0 7m17s
pod/hello-6c595f956c-tdrvv 1/1 Running 0 25s
2
kubectl get pods | grep hello- | wc -l
5개
3
kubectl scale deployment hello --replicas=3
4
kubectl get pods | grep hello- | wc -l
3
<4> 롤링 업데이트
1
kubectl edit deployment hello
버전을 1.0에서 2.0으로 변경
2
$ kubectl get replicaset
NAME DESIRED CURRENT READY AGE
auth-85957c88d8 1 1 1 16m
frontend-6869899d96 1 1 1 7m56s
hello-6c595f956c 0 0 0 11m
hello-6df48465f6 3 3 3 47s
3
롤링 배포 히스토리
kubectl rollout history deployment/hello
deployment.apps/hello
REVISION CHANGE-CAUSE
1 <none>
2 <none>
4
중지
kubectl rollout pause deployment/hello
5
계속
kubectl rollout resume deployment/hello
6
상태 확인
kubectl rollout status deployment/hello
deployment "hello" successfully rolled out
7
롤백
kubectl rollout undo deployment/hello
8
상태 확인
kubectl rollout status deployment/hello
<5> 카나리 배포
1개만 배포해서 상태 확인 배포
kubectl create -f deployments/hello-canary.yaml
2
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/auth 1/1 1 1 24m
deployment.apps/frontend 1/1 1 1 15m
deployment.apps/hello 3/3 3 3 19m
deployment.apps/hello-canary 1/1 1 1 50s
NAME DESIRED CURRENT READY AGE
replicaset.apps/auth-85957c88d8 1 1 1 24m
replicaset.apps/frontend-6869899d96 1 1 1 15m
replicaset.apps/hello-6c595f956c 3 3 3 19m
replicaset.apps/hello-6df48465f6 0 0 0 8m43s
replicaset.apps/hello-canary-587f4f85f4 1 1 1 50s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/auth ClusterIP 10.116.15.239 <none> 80/TCP 20m
service/frontend LoadBalancer 10.116.10.50 34.133.202.41 443:32695/TCP 15m
service/hello ClusterIP 10.116.6.27 <none> 80/TCP 19m
service/kubernetes ClusterIP 10.116.0.1 <none> 443/TCP 29m
NAME READY STATUS RESTARTS AGE
pod/auth-85957c88d8-j5q8k 1/1 Running 0 24m
pod/frontend-6869899d96-frvdk 1/1 Running 0 15m
pod/hello-6c595f956c-8l9pr 1/1 Running 0 3m44s
pod/hello-6c595f956c-b4sk6 1/1 Running 0 4m4s
pod/hello-6c595f956c-lpbhj 1/1 Running 0 3m54s
pod/hello-canary-587f4f85f4-mxrlc 1/1 Running 0 50s
<6> 블루 그린 배포
1
kubectl apply -f services/hello-blue.yaml
2
kubectl create -f deployments/hello-green.yaml
3
확인
curl -ks https://`kubectl get svc frontend -o=jsonpath="{.status.loadBalancer.ingress[0].ip}"`/version
2.0
4
kubectl apply -f services/hello-green.yaml
5
확인
curl -ks https://`kubectl get svc frontend -o=jsonpath="{.status.loadBalancer.ingress[0].ip}"`/version
6
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/auth 1/1 1 1 26m
deployment.apps/frontend 1/1 1 1 18m
deployment.apps/hello 3/3 3 3 21m
deployment.apps/hello-canary 1/1 1 1 3m15s
deployment.apps/hello-green 3/3 3 3 24s
NAME DESIRED CURRENT READY AGE
replicaset.apps/auth-85957c88d8 1 1 1 26m
replicaset.apps/frontend-6869899d96 1 1 1 18m
replicaset.apps/hello-6c595f956c 3 3 3 21m
replicaset.apps/hello-6df48465f6 0 0 0 11m
replicaset.apps/hello-canary-587f4f85f4 1 1 1 3m16s
replicaset.apps/hello-green-75b897597c 3 3 3 25s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/auth ClusterIP 10.116.15.239 <none> 80/TCP 23m
service/frontend LoadBalancer 10.116.10.50 34.133.202.41 443:32695/TCP 18m
service/hello ClusterIP 10.116.6.27 <none> 80/TCP 21m
service/kubernetes ClusterIP 10.116.0.1 <none> 443/TCP 31m
NAME READY STATUS RESTARTS AGE
pod/auth-85957c88d8-j5q8k 1/1 Running 0 26m
pod/frontend-6869899d96-frvdk 1/1 Running 0 18m
pod/hello-6c595f956c-8l9pr 1/1 Running 0 6m10s
pod/hello-6c595f956c-b4sk6 1/1 Running 0 6m30s
pod/hello-6c595f956c-lpbhj 1/1 Running 0 6m20s
pod/hello-canary-587f4f85f4-mxrlc 1/1 Running 0 3m16s
pod/hello-green-75b897597c-hm259 1/1 Running 0 25s
7
롤백
kubectl apply -f services/hello-blue.yaml
curl -ks https://`kubectl get svc frontend -o=jsonpath="{.status.loadBalancer.ingress[0].ip}"`/version
{"version":"1.0.0"}
다음 자료
https://brunch.co.kr/@topasvga/2395
https://brunch.co.kr/@topasvga/1840
https://brunch.co.kr/@topasvga/2388
