연습문제
- 모든 리소스 삭제
- yaml을 사용하여 도커이미지 jenkins로 Jenkins-manual 파드를 생성하기
- Jenkins 파드에서 curl 명령어로 로컬호스트:8080 접속하기
- Jenkins 포트를 8888로 포트포워딩하기
- 현재 Jenkins-manual의 설정을 yaml로 출력하기
imkunyoung@master-1:~/yaml$ nano jenkins-manual-pod.yamlapiVersion: v1
kind: Pod
metadata:
name: jenkins-manual
spec:
containers:
- name: jenkins
image: jenkins/jenkins
ports:
- containerPort: 8080imkunyoung@master-1:~/yaml$ kubectl create -f jenkins-manual-pod.yaml
pod/jenkins-manual created
imkunyoung@master-1:~/yaml$ kubectl get pods -w
NAME READY STATUS RESTARTS AGE
jenkins-manual 0/1 ContainerCreating 0 4s
static-web-master-1 1/1 Running 0 7m3s
jenkins-manual 1/1 Running 0 9simkunyoung@master-1:~/yaml$ kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
jenkins-manual 1/1 Running 0 3m6s 10.0.1.100 worker-3 <none> <none>
static-web-master-1 1/1 Running 0 10m 10.0.0.106 master-1 <none> <none>
imkunyoung@master-1:~/yaml$ curl 10.0.1.100:8080
<html><head><meta http-equiv='refresh' content='1;url=/login?from=%2F'/><script>window.location.replace('/login?from=%2F');</script></head><body style='background-color:white; color:white;'>
Authentication required
<!--
-->
</body></html> or
imkunyoung@master-1:~/yaml$ kubectl exec jenkins-manual -- curl 127.0.0.1:8080 -s
<html><head><meta http-equiv='refresh' content='1;url=/login?from=%2F'/><script>window.location.replace('/login?from=%2F');</script></head><body style='background-color:white; color:white;'>
Authentication required
<!--
-->
</body></html> 로그 확인
imkunyoung@master-1:~/yaml$ kubectl logs jenkins-manual
Running from: /usr/share/jenkins/jenkins.war
webroot: /var/jenkins_home/war
2023-08-01 00:07:32.563+0000 [id=1] INFO winstone.Logger#logInternal: Beginning extraction from war file
2023-08-01 00:07:33.565+0000 [id=1] WARNING o.e.j.s.handler.ContextHandler#setContextPath: Empty contextPath
2023-08-01 00:07:33.656+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: jetty-10.0.15; built: 2023-04-11T17:25:14.480Z; git: 68017dbd00236bb7e187330d7585a059610f661d; jvm 11.0.19+7
2023-08-01 00:07:34.166+0000 [id=1] INFO o.e.j.w.StandardDescriptorProcessor#visitServlet: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet
2023-08-01 00:07:34.247+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: Session workerName=node0
2023-08-01 00:07:35.597+0000 [id=1] INFO hudson.WebAppMain#contextInitialized: Jenkins home directory: /var/jenkins_home found at: EnvVars.masterEnvVars.get("JENKINS_HOME")
2023-08-01 00:07:36.113+0000 [id=1] INFO o.e.j.s.handler.ContextHandler#doStart: Started w.@3724b43e{Jenkins v2.416,/,file:///var/jenkins_home/war/,AVAILABLE}{/var/jenkins_home/war}
2023-08-01 00:07:36.176+0000 [id=1] INFO o.e.j.server.AbstractConnector#doStart: Started ServerConnector@68ead359{HTTP/1.1, (http/1.1)}{0.0.0.0:8080}
2023-08-01 00:07:36.250+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: Started Server@58fb7731{STARTING}[10.0.15,sto=0] @4568ms
2023-08-01 00:07:36.269+0000 [id=23] INFO winstone.Logger#logInternal: Winstone Servlet Engine running: controlPort=disabled
2023-08-01 00:07:37.134+0000 [id=30] INFO jenkins.InitReactorRunner$1#onAttained: Started initialization
2023-08-01 00:07:37.207+0000 [id=29] INFO jenkins.InitReactorRunner$1#onAttained: Listed all plugins
2023-08-01 00:07:39.731+0000 [id=28] INFO jenkins.InitReactorRunner$1#onAttained: Prepared all plugins
2023-08-01 00:07:39.739+0000 [id=28] INFO jenkins.InitReactorRunner$1#onAttained: Started all plugins
2023-08-01 00:07:39.750+0000 [id=30] INFO jenkins.InitReactorRunner$1#onAttained: Augmented all extensions
2023-08-01 00:07:40.147+0000 [id=28] INFO jenkins.InitReactorRunner$1#onAttained: System config loaded
2023-08-01 00:07:40.148+0000 [id=30] INFO jenkins.InitReactorRunner$1#onAttained: System config adapted
2023-08-01 00:07:40.149+0000 [id=30] INFO jenkins.InitReactorRunner$1#onAttained: Loaded all jobs
2023-08-01 00:07:40.150+0000 [id=30] INFO jenkins.InitReactorRunner$1#onAttained: Configuration for all jobs updated
2023-08-01 00:07:40.220+0000 [id=44] INFO hudson.util.Retrier#start: Attempt #1 to do the action check updates server
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.vmplugin.v7.Java7$1 (file:/var/jenkins_home/war/WEB-INF/lib/groovy-all-2.4.21.jar) to constructor java.lang.invoke.MethodHandles$Lookup(java.lang.Class,int)
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.vmplugin.v7.Java7$1
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
2023-08-01 00:07:41.089+0000 [id=31] 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:
5a390066509b481cbe33bdd476ca9f34
This may also be found at: /var/jenkins_home/secrets/initialAdminPassword
*************************************************************
*************************************************************
*************************************************************
2023-08-01 00:07:56.284+0000 [id=30] INFO jenkins.InitReactorRunner$1#onAttained: Completed initialization
2023-08-01 00:07:56.375+0000 [id=22] INFO hudson.lifecycle.Lifecycle#onReady: Jenkins is fully up and running
2023-08-01 00:07:56.514+0000 [id=44] INFO h.m.DownloadService$Downloadable#load: Obtained the updated data file for hudson.tasks.Maven.MavenInstaller
2023-08-01 00:07:56.515+0000 [id=44] INFO hudson.util.Retrier#start: Performed the action check updates server successfully at the attempt #1Jenkins-manual의 설정을 yaml로 출력
imkunyoung@master-1:~/yaml$ kubectl get pods jenkins-manual -o yaml
apiVersion: v1
kind: Pod
metadata:
creationTimestamp: "2023-08-01T00:07:22Z"
name: jenkins-manual
namespace: default
resourceVersion: "3626977"
uid: effab45e-4bb7-4c51-a2b1-44da371cd386
spec:
containers:
- image: jenkins/jenkins
imagePullPolicy: Always
name: jenkins
ports:
- containerPort: 8080
protocol: TCP
resources: {}
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
volumeMounts:
- mountPath: /var/run/secrets/kubernetes.io/serviceaccount
name: kube-api-access-59vwj
readOnly: true
dnsPolicy: ClusterFirst
enableServiceLinks: true
nodeName: worker-3
preemptionPolicy: PreemptLowerPriority
priority: 0
restartPolicy: Always
schedulerName: default-scheduler
securityContext: {}
serviceAccount: default
serviceAccountName: default
terminationGracePeriodSeconds: 30
tolerations:
- effect: NoExecute
key: node.kubernetes.io/not-ready
operator: Exists
tolerationSeconds: 300
- effect: NoExecute
key: node.kubernetes.io/unreachable
operator: Exists
tolerationSeconds: 300
volumes:
- name: kube-api-access-59vwj
projected:
defaultMode: 420
sources:
- serviceAccountToken:
expirationSeconds: 3607
path: token
- configMap:
items:
- key: ca.crt
path: ca.crt
name: kube-root-ca.crt
- downwardAPI:
items:
- fieldRef:
apiVersion: v1
fieldPath: metadata.namespace
path: namespace
status:
conditions:
- lastProbeTime: null
lastTransitionTime: "2023-08-01T00:07:22Z"
status: "True"
type: Initialized
- lastProbeTime: null
lastTransitionTime: "2023-08-01T00:07:31Z"
status: "True"
type: Ready
- lastProbeTime: null
lastTransitionTime: "2023-08-01T00:07:31Z"
status: "True"
type: ContainersReady
- lastProbeTime: null
lastTransitionTime: "2023-08-01T00:07:22Z"
status: "True"
type: PodScheduled
containerStatuses:
- containerID: containerd://36c88a36724f13637e7e0dec2bc5109c793e9e452fa5c47a8a8ea5526ca2ddbb
image: docker.io/jenkins/jenkins:latest
imageID: docker.io/jenkins/jenkins@sha256:a628f2b7808ccc9b2f3bb5e8aa87bc534c46d43f6942dea2ef8a247f9ac687a6
lastState: {}
name: jenkins
ready: true
restartCount: 0
started: true
state:
running:
startedAt: "2023-08-01T00:07:30Z"
hostIP: 10.138.0.5
phase: Running
podIP: 10.0.1.100
podIPs:
- ip: 10.0.1.100
qosClass: BestEffort
startTime: "2023-08-01T00:07:22Z"실행 시간 등 확인
imkunyoung@master-1:~/yaml$ kubectl describe pods jenkins-manual
Name: jenkins-manual
Namespace: default
Priority: 0
Service Account: default
Node: worker-3/10.138.0.5
Start Time: Tue, 01 Aug 2023 00:07:22 +0000
Labels: <none>
Annotations: <none>
Status: Running
IP: 10.0.1.100
IPs:
IP: 10.0.1.100
Containers:
jenkins:
Container ID: containerd://36c88a36724f13637e7e0dec2bc5109c793e9e452fa5c47a8a8ea5526ca2ddbb
Image: jenkins/jenkins
Image ID: docker.io/jenkins/jenkins@sha256:a628f2b7808ccc9b2f3bb5e8aa87bc534c46d43f6942dea2ef8a247f9ac687a6
Port: 8080/TCP
Host Port: 0/TCP
State: Running
Started: Tue, 01 Aug 2023 00:07:30 +0000
Ready: True
Restart Count: 0
Environment: <none>
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-59vwj (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
kube-api-access-59vwj:
Type: Projected (a volume that contains injected data from multiple sources)
TokenExpirationSeconds: 3607
ConfigMapName: kube-root-ca.crt
ConfigMapOptional: <nil>
DownwardAPI: true
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 11m default-scheduler Successfully assigned default/jenkins-manual to worker-3
Normal Pulling 11m kubelet Pulling image "jenkins/jenkins"
Normal Pulled 11m kubelet Successfully pulled image "jenkins/jenkins" in 7.292743659s (7.292755349s including waiting)
Normal Created 11m kubelet Created container jenkins
Normal Started 11m kubelet Started container jenkins