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EKS에서 Jenkins 을 실행하기 (feat.스케일 인 아웃)
EKS에서 Jenkins 을 실행하기 (feat.스케일 인 아웃)
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# jenkins 을 다운로드 하여 실행
docker pull jenkins/jenkins:lts-jdk11 kubectl create deploy jenkins --image=jenkins/jenkins:lts-jdk11 --port 8080 or kubectl create deploy jenkins --image=jenkins/jenkins:lts-jdk11 kubectl get pod kubectl get pod -w
ec2-user:~/environment $ kubectl create deploy jenkins --image=jenkins/jenkins:lts-jdk11 deployment.apps/jenkins created ec2-user:~/environment $ kubectl get pod -w NAME READY STATUS RESTARTS AGE jenkins-9df675f7-dp2db 1/1 Running 0 61s
# expose하여 외부에서 서비스 접근 허용하도록 설정
kubectl expose deploy jenkins --type=LoadBalancer --name jenkins-svc or ec2-user:~/environment $ kubectl expose deploy jenkins --type=LoadBalancer --name jenkins-svc --port 8080 service/jenkins-svc exposed kubectl get svc -w
# jenkins 초기 해시 코드값을 찾기위해 쿠버네티스로 접근하여 확인
kubectl get pod kubectl exec [podNAME] -- cat [jenkins 초기화면 패스워드 경로] kubectl exec jenkins-7ffb988b7-jwnjw cat /var/jenkins_home/secrets/initialAdminPassword
ec2-user:~/environment $ kubectl get pod NAME READY STATUS RESTARTS AGE jenkins-9df675f7-dp2db 1/1 Running 0 4m33s ec2-user:~/environment $ kubectl exec jenkins-9df675f7-dp2db cat /var/jenkins_home/secrets/initialAdminPassword 5fd49c705e694c9aadfc7f028303b13f ec2-user:~/environment $
# 다른 방법으로 jenkins 해쉬값 확인
kubectl logs [NAME] kubectl logs jenkins-7ffb988b7-jwnjw
ec2-user:~/environment $ kubectl logs jenkins-9df675f7-dp2db Running from: /usr/share/jenkins/jenkins.war webroot: EnvVars.masterEnvVars.get("JENKINS_HOME") 2021-10-05 11:58:20.313+0000 [id=1] INFO org.eclipse.jetty.util.log.Log#initialized: Logging initialized @723ms to org.eclipse.jetty.util.log.JavaUtilLog 2021-10-05 11:58:20.446+0000 [id=1] INFO winstone.Logger#logInternal: Beginning extraction from war file 2021-10-05 11:58:21.480+0000 [id=1] WARNING o.e.j.s.handler.ContextHandler#setContextPath: Empty contextPath 2021-10-05 11:58:21.550+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: jetty-9.4.42.v20210604; built: 2021-06-04T17:33:38.939Z; git: 5cd5e6d2375eeab146813b0de9f19eda6ab6e6cb; jvm 11.0.12+7 2021-10-05 11:58:21.933+0000 [id=1] INFO o.e.j.w.StandardDescriptorProcessor#visitServlet: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet 2021-10-05 11:58:21.975+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: DefaultSessionIdManager workerName=node0 2021-10-05 11:58:21.975+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: No SessionScavenger set, using defaults 2021-10-05 11:58:21.976+0000 [id=1] INFO o.e.j.server.session.HouseKeeper#startScavenging: node0 Scavenging every 660000ms 2021-10-05 11:58:22.629+0000 [id=1] INFO hudson.WebAppMain#contextInitialized: Jenkins home directory: /var/jenkins_home found at: EnvVars.masterEnvVars.get("JENKINS_HOME") 2021-10-05 11:58:22.871+0000 [id=1] INFO o.e.j.s.handler.ContextHandler#doStart: Started w.@3a01773b{Jenkins v2.303.1,/,file:///var/jenkins_home/war/,AVAILABLE}{/var/jenkins_home/war} 2021-10-05 11:58:22.919+0000 [id=1] INFO o.e.j.server.AbstractConnector#doStart: Started ServerConnector@3f0846c6{HTTP/1.1, (http/1.1)}{0.0.0.0:8080} 2021-10-05 11:58:22.922+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: Started @3333ms 2021-10-05 11:58:22.935+0000 [id=23] INFO winstone.Logger#logInternal: Winstone Servlet Engine running: controlPort=disabled 2021-10-05 11:58:23.248+0000 [id=29] INFO jenkins.InitReactorRunner$1#onAttained: Started initialization 2021-10-05 11:58:23.285+0000 [id=28] INFO jenkins.InitReactorRunner$1#onAttained: Listed all plugins WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.google.inject.internal.cglib.core.$ReflectUtils$2 (file:/var/jenkins_home/war/WEB-INF/lib/guice-4.0.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) WARNING: Please consider reporting this to the maintainers of com.google.inject.internal.cglib.core.$ReflectUtils$2 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release 2021-10-05 11:58:24.807+0000 [id=29] INFO jenkins.InitReactorRunner$1#onAttained: Prepared all plugins 2021-10-05 11:58:24.814+0000 [id=28] INFO jenkins.InitReactorRunner$1#onAttained: Started all plugins 2021-10-05 11:58:24.847+0000 [id=28] INFO jenkins.InitReactorRunner$1#onAttained: Augmented all extensions 2021-10-05 11:58:25.814+0000 [id=29] INFO jenkins.InitReactorRunner$1#onAttained: System config loaded 2021-10-05 11:58:25.815+0000 [id=29] INFO jenkins.InitReactorRunner$1#onAttained: System config adapted 2021-10-05 11:58:25.815+0000 [id=29] INFO jenkins.InitReactorRunner$1#onAttained: Loaded all jobs 2021-10-05 11:58:25.816+0000 [id=29] INFO jenkins.InitReactorRunner$1#onAttained: Configuration for all jobs updated 2021-10-05 11:58:25.874+0000 [id=42] INFO hudson.model.AsyncPeriodicWork#lambda$doRun$0: Started Download metadata 2021-10-05 11:58:25.906+0000 [id=42] INFO hudson.util.Retrier#start: Attempt #1 to do the action check updates server 2021-10-05 11:58:26.607+0000 [id=29] INFO jenkins.install.SetupWizard#init: ************************************************************* ************************************************************* ************************************************************* Jenkins initial setup is required. An admin user has been created and a password generated. Please use the following password to proceed to installation: 5fd49c705e694c9aadfc7f028303b13f This may also be found at: /var/jenkins_home/secrets/initialAdminPassword ************************************************************* ************************************************************* ************************************************************* 2021-10-05 11:58:47.846+0000 [id=28] INFO jenkins.InitReactorRunner$1#onAttained: Completed initialization 2021-10-05 11:58:47.868+0000 [id=22] INFO hudson.WebAppMain$3#run: Jenkins is fully up and running 2021-10-05 11:58:48.462+0000 [id=42] INFO h.m.DownloadService$Downloadable#load: Obtained the updated data file for hudson.tasks.Maven.MavenInstaller 2021-10-05 11:58:48.463+0000 [id=42] INFO hudson.util.Retrier#start: Performed the action check updates server successfully at the attempt #1 2021-10-05 11:58:48.465+0000 [id=42] INFO hudson.model.AsyncPeriodicWork#lambda$doRun$0: Finished Download metadata. 22,586 ms 2021-10-05 12:01:04.614+0000 [id=64] INFO hudson.model.AsyncPeriodicWork#lambda$doRun$0: Started Periodic background build discarder 2021-10-05 12:01:04.615+0000 [id=64] INFO hudson.model.AsyncPeriodicWork#lambda$doRun$0: Finished Periodic background build discarder. 0 ms ec2-user:~/environment $
# jenkins 웹 페이지로 접근 > EXTERNAL-IP:8080 으로 접근
ec2-user:~/environment $ kubectl get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE http-go-svc LoadBalancer 10.100.31.13 acccca471d55b411c856821970f7e81a-1523375836.ap-northeast-2.elb.amazonaws.com 8080:32482/TCP 140m jenkins-svc LoadBalancer 10.100.60.15 a659db785a08d45408c98ba8506fa56b-2028454087.ap-northeast-2.elb.amazonaws.com 8080:30027/TCP 4m31s kubernetes ClusterIP 10.100.0.1 443/TCP 42h ec2-user:~/environment $
- 서비스 정상 접근 확인
- 토큰값 입력하여 jenkins 관리자 페이지로 접근하기
- 자동으로 플러그인을 설치하고 있는 모습
- jenkins 로그인 모습
# jenkins pod 스케일 아웃 후 서비스 확인 > 3개의 pod로 스케일 아웃된것을 확인
ec2-user:~/environment $ kubectl scale deploy jenkins --replicas=3 deployment.apps/jenkins scaled ec2-user:~/environment $ kubectl get pod -w NAME READY STATUS RESTARTS AGE jenkins-9df675f7-4q89p 1/1 Running 0 15s jenkins-9df675f7-dp2db 1/1 Running 0 14m jenkins-9df675f7-k2rfq 0/1 ContainerCreating 0 15s jenkins-9df675f7-k2rfq 1/1 Running 0 16s ec2-user:~/environment $ kubectl get pod NAME READY STATUS RESTARTS AGE jenkins-9df675f7-4q89p 1/1 Running 0 93s jenkins-9df675f7-dp2db 1/1 Running 0 15m jenkins-9df675f7-k2rfq 1/1 Running 0 93s ec2-user:~/environment $
# jenkins이 어떤 노드에서 실행되는지 노드 정보 확인 > LB 되어 worker 노드 2개에서 번갈아 가면서 실행될 것이다.
ec2-user:~/environment $ kubectl get pod -o wide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES jenkins-9df675f7-4q89p 1/1 Running 0 2m22s 192.168.0.98 ip-192-168-19-0.ap-northeast-2.compute.internal jenkins-9df675f7-dp2db 1/1 Running 0 16m 192.168.6.116 ip-192-168-19-0.ap-northeast-2.compute.internal jenkins-9df675f7-k2rfq 1/1 Running 0 2m22s 192.168.51.136 ip-192-168-39-178.ap-northeast-2.compute.internal ec2-user:~/environment $
# jenkins pod 스케일 인 > replicas=0 으로 서비스를 없앤다.
ec2-user:~/environment $ kubectl scale deploy jenkins --replicas=0 deployment.apps/jenkins scaled ec2-user:~/environment $ kubectl get pod No resources found in default namespace. ec2-user:~/environment $
끝.
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from http://may9noy.tistory.com/291 by ccl(A) rewrite - 2021-10-05 22:26:32