162. GCP 쿠버네티스와 젠킨스 설치
<1> GCP 환경 설정
<2> 클러스터 만들기
<3> Helm 설정
<4> 젠킨스 설치 (10분)
<5> 애플리케이션 배포
<6> 최소 4개의 복제본 실행
<7> 저장소 만들기
<20> 같이 보면 좋을 자료
<1> GCP 환경 설정
1
gcloud auth list
gcloud config list project
2
gcloud config set compute/zone us-east1-d
인증 설정 참고하기
https://brunch.co.kr/@topasvga/1132
<2> 클러스터 만들기
1
gcloud container clusters create jenkins-cd \
--num-nodes 2 \
--machine-type n1-standard-2 \
--scopes "https://www.googleapis.com/auth/source.read_write,cloud-platform"
2
생성 상태
NAME LOCATION MASTER_VERSION MASTER_IP MACHINE_TYPE NODE_VERSION NUM_NODES STATUS
jenkins-cd us-east1-d 1.20.8-gke.900 35.231.237.66 n1-standard-2 1.20.8-gke.900 2 RUNNING
student_02_5112c2b77e78@cloudshell:~/continuous-deployment-on-kubernetes (qwiklabs-gcp-02-1eea15366652)$
3
클러스터 상태 확인
gcloud container clusters list
$ gcloud container clusters list
NAME LOCATION MASTER_VERSION MASTER_IP MACHINE_TYPE NODE_VERSION NUM_NODES STATUS
jenkins-cd us-east1-d 1.20.8-gke.900 35.231.237.66 n1-standard-2 1.20.8-gke.900 2 RUNNING
4
사용자 인증 정보 가져오기
gcloud container clusters get-credentials jenkins-cd
$ gcloud container clusters get-credentials jenkins-cd
Fetching cluster endpoint and auth data.
kubeconfig entry generated for jenkins-cd.
5
사용자 인증 정보 확인
kubectl cluster-info
$ kubectl cluster-info
Kubernetes control plane is running at https://35.231.237.66
GLBCDefaultBackend is running at https://35.231.237.66/api/v1/namespaces/kube-system/services/default-http-backend:http/proxy
KubeDNS is running at https://35.231.237.66/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
Metrics-server is running at https://35.231.237.66/api/v1/namespaces/kube-system/services/https:metrics-server:/proxy
To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
<3> Helm 설정
1
Hml 레포에 젠킨스 추가
helm repo add jenkins https://charts.jenkins.io
2
helm 차트 업데이트
helm repo update
<4> 젠킨스 설치 (10분)
1
helm install cd jenkins/jenkins -f jenkins/values.yaml --version 1.2.2 --wait
$ helm install cd jenkins/jenkins -f jenkins/values.yaml --version 1.2.2 --wait
NAME: cd
LAST DEPLOYED: Tue Aug 17 10:30:03 2021
NAMESPACE: default
STATUS: deployed
REVISION: 1
NOTES:
1. Get your 'admin' user password by running:
printf $(kubectl get secret --namespace default cd-jenkins -o jsonpath="{.data.jenkins-admin-password}" | base64 --decode);echo
2. Get the Jenkins URL to visit by running these commands in the same shell:
export POD_NAME=$(kubectl get pods --namespace default -l "app.kubernetes.io/component=jenkins-master" -l "app.kubernetes.io/instance=cd" -o jsonpath="{.items[0].metadata.name}")
echo http://127.0.0.1:8080
kubectl --namespace default port-forward $POD_NAME 8080:8080
3. Login with the password from step 1 and the username: admin
For more information on running Jenkins on Kubernetes, visit:
https://cloud.google.com/solutions/jenkins-on-container-engine
2
alias k=kubectl
complete -F __start_kubectl k
k get ns,no,po,svc,deploy,rs,ing,ep
$ k get ns,no,po,svc,deploy,rs,ing,ep
NAME STATUS AGE
namespace/default Active 6m38s
namespace/kube-node-lease Active 6m39s
namespace/kube-public Active 6m39s
namespace/kube-system Active 6m40s
NAME STATUS ROLES AGE VERSION
node/gke-jenkins-cd-default-pool-46403413-5v24 Ready <none> 5m56s v1.20.8-gke.900
node/gke-jenkins-cd-default-pool-46403413-mgmq Ready <none> 5m56s v1.20.8-gke.900
NAME READY STATUS RESTARTS AGE
pod/cd-jenkins-7b6c86874d-gl99z 1/1 Running 0 2m31s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/cd-jenkins ClusterIP 10.3.246.188 <none> 8080/TCP 2m31s
service/cd-jenkins-agent ClusterIP 10.3.252.229 <none> 50000/TCP 2m31s
service/kubernetes ClusterIP 10.3.240.1 <none> 443/TCP 6m38s
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/cd-jenkins 1/1 1 1 2m31s
NAME DESIRED CURRENT READY AGE
replicaset.apps/cd-jenkins-7b6c86874d 1 1 1 2m31s
NAME ENDPOINTS AGE
endpoints/cd-jenkins 10.0.0.6:8080 2m31s
endpoints/cd-jenkins-agent 10.0.0.6:50000 2m31s
endpoints/kubernetes 35.231.237.66:443 6m38s
3
kubectl get pods
4
서비스 계정 만들기
$ kubectl create clusterrolebinding jenkins-deploy --clusterrole=cluster-admin --serviceaccount=default:cd-jenkins
clusterrolebinding.rbac.authorization.k8s.io/jenkins-deploy created
5
export POD_NAME=$(kubectl get pods --namespace default -l "app.kubernetes.io/component=jenkins-master" -l "app.kubernetes.io/instance=cd" -o jsonpath="{.items[0].metadata.name}")
kubectl port-forward $POD_NAME 8080:8080 >> /dev/null &
8
etes (qwiklabs-gcp-02-1eea15366652)$ kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
cd-jenkins ClusterIP 10.3.246.188 <none> 8080/TCP 4m33s
cd-jenkins-agent ClusterIP 10.3.252.229 <none> 50000/TCP 4m33s
kubernetes ClusterIP 10.3.240.1 <none> 443/TCP 8m40s
9
젠킨스 암호 만들기
443/TCP 8m40s
student_02_5112c2b77e78@cloudshell:~/continuous-deployment-on-kubernetes (qwiklabs-gcp-02-1eea15366652)$ printf $(kubectl get secret cd-jenkins -o jsonpath="{.data.jenkins-admin-password}" | base64 --decode);echo
jaCLj8eCXB
student_02_5112c2b77e78@clo
<5> 애플리케이션 배포
1
별도의 네임 스페이스는 만든다.
$ kubectl create ns production
namespace/production created
2
prd와 카나리 배포하고
$ kubectl apply -f k8s/production -n production
deployment.apps/gceme-backend-production created
deployment.apps/gceme-frontend-production created
3
$ kubectl apply -f k8s/canary -n production
deployment.apps/gceme-backend-canary created
deployment.apps/gceme-frontend-canary created
4
서비스 생성하기
$ kubectl apply -f k8s/services -n production
service/gceme-backend created
5
확인
$ k get ns,no,po,svc,deploy,rs,ing,ep
NAME STATUS AGE
namespace/default Active 13m
namespace/kube-node-lease Active 13m
namespace/kube-public Active 13m
namespace/kube-system Active 13m
namespace/production Active 56s
NAME STATUS ROLES AGE VERSION
node/gke-jenkins-cd-default-pool-46403413-5v24 Ready <none> 12m v1.20.8-gke.900
node/gke-jenkins-cd-default-pool-46403413-mgmq Ready <none> 12m v1.20.8-gke.900
NAME READY STATUS RESTARTS AGE
pod/cd-jenkins-7b6c86874d-gl99z 1/1 Running 0 9m5s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/cd-jenkins ClusterIP 10.3.246.188 <none> 8080/TCP 9m5s
service/cd-jenkins-agent ClusterIP 10.3.252.229 <none> 50000/TCP 9m5s
service/kubernetes ClusterIP 10.3.240.1 <none> 443/TCP 13m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/cd-jenkins 1/1 1 1 9m6s
NAME DESIRED CURRENT READY AGE
replicaset.apps/cd-jenkins-7b6c86874d 1 1 1 9m6s
NAME ENDPOINTS AGE
endpoints/cd-jenkins 10.0.0.6:8080 9m6s
endpoints/cd-jenkins-agent 10.0.0.6:50000 9m6s
endpoints/kubernetes 35.231.237.66:443 13m
<6> 최소 4개의 복제본 실행
kubectl scale 명령어를 사용
1
확장
kubectl scale deployment gceme-frontend-production -n production --replicas 4
2
kubectl get pods -n production -l app=gceme -l role=frontend
3
kubectl get pods -n production -l app=gceme -l role=backend
4
kubectl get service gceme-frontend -n production
$ kubectl get service gceme-frontend -n production
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
gceme-frontend LoadBalancer 10.3.252.247 34.139.143.17 80:32588/TCP 7m49s
5
$ kubectl get pods -n production -l app=gceme -l role=frontend
NAME READY STATUS RESTARTS AGE
gceme-frontend-canary-767dc49f5-46gnz 1/1 Running 0 3m50s
gceme-frontend-production-fd8947698-58xkv 1/1 Running 0 3m58s
gceme-frontend-production-fd8947698-7lm5h 1/1 Running 0 94s
gceme-frontend-production-fd8947698-ndrsq 1/1 Running 0 94s
gceme-frontend-production-fd8947698-tgrnm 1/1 Running 0 94s
$ kubectl get pods -n production -l app=gceme -l role=backend
NAME READY STATUS RESTARTS AGE
gceme-backend-canary-6db485dfd5-bksmn 1/1 Running 0 4m28s
gceme-backend-production-59c75dcb54-mdrpt 1/1 Running 0 4m36s
6
변수 등록
export FRONTEND_SERVICE_IP=$(kubectl get -o jsonpath="{.status.loadBalancer.ingress[0].ip}" --namespace=production services gceme-frontend)
7
curl
http://$FRONTEND_SERVICE_IP/version
curl
http://
34.139.143.17
/version
$ curl http://34.139.143.17/version
1.0.0
<7> 저장소 만들기
1
gcloud source repos create default
2
git config --global user.email "topasvga@naver.com"
git config --global user.name "taeho"
참고
git config --global user.email "you@example.com"
git config --global user.name "Your Name"
3
git add .
git commit -m "Initial commit"
git push origin master
4
git 참고 자료
https://brunch.co.kr/@topasvga/764
<20> 같이 보면 좋을 자료
https://brunch.co.kr/@topasvga/1800
감사합니다.
