Série de notes : Installation de Jenkins dans un environnement Docker

1. Objectif

Installez Jenkins dans un environnement Docker et mettez en œuvre l'apprentissage préliminaire du pipeline.

2. Conditions préalables

• docker
• Linux

3. Étapes spécifiques

3.1 Extraction d'images

➜  ~ docker pull jenkins/jenkins
Using default tag: latest
latest: Pulling from jenkins/jenkins
0e29546d541c: Pull complete
a881d3e39b57: Pull complete
d424caad5b90: Pull complete
469ee726cc8f: Pull complete
f5eff683d188: Pull complete
955c78102a93: Pull complete
1e670fe34dae: Pull complete
30a5b207ad53: Pull complete
3c421004e233: Pull complete
e2729810a28a: Pull complete
4c14906574b5: Pull complete
8d6f1717fa64: Pull complete
a43947c0b965: Pull complete
0dfe4ad317f0: Pull complete
51f8f56f3e20: Pull complete
3944cb7b63c3: Pull complete
f3ebba26875d: Pull complete
Digest: sha256:0c31a58707a69449d2db06a31dc76b6bdf7f690d2664406104185eac27d0d54b
Status: Downloaded newer image for jenkins/jenkins:latest
docker.io/jenkins/jenkins:latest
➜  ~ docker images
REPOSITORY        TAG       IMAGE ID       CREATED        SIZE
jenkins/jenkins   latest    1c520775844c   45 hours ago   442MB

3,2 tomes

mkdir -p /var/jenkins_mount
chmod 777 /var/jenkins_mount

3.3 Créer et démarrer le conteneur Jenkins

• -d exécute l'image en arrière-plan
• -p 10240:8080 mappe le port 8080 du miroir au port 10240 du serveur.
• -p 10241:50000 mappe le port 50000 du miroir au port 10241 du serveur
• -v /var/jenkins_mount:/var/jenkins_mount Le répertoire /var/jenkins_home est le répertoire de travail du conteneur jenkins. Nous montons un répertoire sur le disque dur à cet emplacement pour faciliter l'utilisation ultérieure du répertoire de travail d'origine après la mise à jour du image. Ce que nous définissons ici est le répertoire /var/jenkins_mount que nous avons créé ci-dessus
• -v /etc/localtime:/etc/localtime indique au conteneur d'utiliser les mêmes paramètres d'heure que le serveur.
• –name myjenkins Donner un alias au conteneur

➜  ~ docker run -d -p 10240:8080 -p 10241:50000 -v /var/jenkins_mount:/var/jenkins_home -v /etc/localtime:/etc/localtime --name myjenkins jenkins/jenkins

e62f855f38a8b801880a2deaa7ffb00ec80aa5eb2787ae613288a6f609285acd
➜  ~ docker ps
CONTAINER ID   IMAGE             COMMAND                  CREATED          STATUS          PORTS                                               NAMES
e62f855f38a8   jenkins/jenkins   "/sbin/tini -- /usr/…"   16 seconds ago   Up 15 seconds   0.0.0.0:10240->8080/tcp, 0.0.0.0:10241->50000/tcp   myjenkins

3.4 Afficher les journaux

➜  ~ docker logs myjenkins
Running from: /usr/share/jenkins/jenkins.war
webroot: EnvVars.masterEnvVars.get("JENKINS_HOME")
2022-01-23 14:58:35.548+0000 [id=1]	INFO	org.eclipse.jetty.util.log.Log#initialized: Logging initialized @432ms to org.eclipse.jetty.util.log.JavaUtilLog
2022-01-23 14:58:35.616+0000 [id=1]	INFO	winstone.Logger#logInternal: Beginning extraction from war file
2022-01-23 14:58:50.791+0000 [id=1]	WARNING	o.e.j.s.handler.ContextHandler#setContextPath: Empty contextPath
2022-01-23 14:58:50.850+0000 [id=1]	INFO	org.eclipse.jetty.server.Server#doStart: jetty-9.4.43.v20210629; built: 2021-06-30T11:07:22.254Z; git: 526006ecfa3af7f1a27ef3a288e2bef7ea9dd7e8; jvm 11.0.13+8
2022-01-23 14:58:51.470+0000 [id=1]	INFO	o.e.j.w.StandardDescriptorProcessor#visitServlet: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet
2022-01-23 14:58:51.561+0000 [id=1]	INFO	o.e.j.s.s.DefaultSessionIdManager#doStart: DefaultSessionIdManager workerName=node0
2022-01-23 14:58:51.561+0000 [id=1]	INFO	o.e.j.s.s.DefaultSessionIdManager#doStart: No SessionScavenger set, using defaults
2022-01-23 14:58:51.562+0000 [id=1]	INFO	o.e.j.server.session.HouseKeeper#startScavenging: node0 Scavenging every 600000ms
2022-01-23 14:58:52.743+0000 [id=1]	INFO	hudson.WebAppMain#contextInitialized: Jenkins home directory: /var/jenkins_home found at: EnvVars.masterEnvVars.get("JENKINS_HOME")
2022-01-23 14:58:53.216+0000 [id=1]	INFO	o.e.j.s.handler.ContextHandler#doStart: Started w.@11b455e5{Jenkins v2.331,/,file:///var/jenkins_home/war/,AVAILABLE}{/var/jenkins_home/war}
2022-01-23 14:58:53.249+0000 [id=1]	INFO	o.e.j.server.AbstractConnector#doStart: Started ServerConnector@6941827a{HTTP/1.1, (http/1.1)}{0.0.0.0:8080}
2022-01-23 14:58:53.249+0000 [id=1]	INFO	org.eclipse.jetty.server.Server#doStart: Started @18135ms
2022-01-23 14:58:53.250+0000 [id=24]	INFO	winstone.Logger#logInternal: Winstone Servlet Engine running: controlPort=disabled
2022-01-23 14:58:54.102+0000 [id=31]	INFO	jenkins.InitReactorRunner$1#onAttained: Started initialization
2022-01-23 14:58:54.205+0000 [id=36]	INFO	jenkins.InitReactorRunner$1#onAttained: Listed all plugins
2022-01-23 14:58:56.340+0000 [id=32]	INFO	jenkins.InitReactorRunner$1#onAttained: Prepared all plugins
2022-01-23 14:58:56.350+0000 [id=39]	INFO	jenkins.InitReactorRunner$1#onAttained: Started all plugins
2022-01-23 14:58:56.370+0000 [id=30]	INFO	jenkins.InitReactorRunner$1#onAttained: Augmented all extensions
2022-01-23 14:58:57.274+0000 [id=30]	INFO	jenkins.InitReactorRunner$1#onAttained: System config loaded
2022-01-23 14:58:57.275+0000 [id=32]	INFO	jenkins.InitReactorRunner$1#onAttained: System config adapted
2022-01-23 14:58:57.275+0000 [id=32]	INFO	jenkins.InitReactorRunner$1#onAttained: Loaded all jobs
2022-01-23 14:58:57.278+0000 [id=32]	INFO	jenkins.InitReactorRunner$1#onAttained: Configuration for all jobs updated
2022-01-23 14:58:57.303+0000 [id=53]	INFO	hudson.model.AsyncPeriodicWork#lambda$doRun$1: Started Download metadata
2022-01-23 14:58:57.339+0000 [id=53]	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.reflection.CachedClass (file:/var/jenkins_home/war/WEB-INF/lib/groovy-all-2.4.21.jar) to method java.lang.Object.finalize()
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass
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
2022-01-23 14:58:58.365+0000 [id=36]	INFO	jenkins.install.SetupWizard#init:

*************************************************************
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Jenkins initial setup is required. An admin user has been created and a password generated.
Please use the following password to proceed to installation:

d8722ddc05464738bf0c6c2b4e8922f7

This may also be found at: /var/jenkins_home/secrets/initialAdminPassword

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3.5 Modifier l'adresse source

S'il est lent à extraire le contenu, vous pouvez essayer de modifier l'adresse d'accélération de l'image.
Puisque les volumes sont configurés, vous pouvez modifier la configuration sans vous connecter au conteneur. Accédez à /var/jenkins_mount
et modifiez hudson.model.UpdateCenter.xml en

<?xml version='1.1' encoding='UTF-8'?>
<sites>
  <site>
    <id>default</id>
    <url>https://mirrors.tuna.tsinghua.edu.cn/jenkins/updates/update-center.json</url>
  </site>
</sites>

3.6 Accéder à la page principale

localhost:10240

Entrez l'adresse dans le conteneur ou l'adresse de montage pour obtenir le mot de passe et entrez-le.Après avoir installé un tas de plug-ins,

je n'ai pas configuré d'utilisateur administrateur ici et j'ai utilisé le compte administrateur.