162 lines
9.5 KiB
Markdown
162 lines
9.5 KiB
Markdown
# Key CI/CD/Jenkins Concepts and their Usage
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## Installing Jenkins
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1. Download the [latest stable Jenkins WAR file](http://mirrors.jenkins.io/war-stable/latest/jenkins.war). To download from the command line, use `wget http://mirrors.jenkins.io/war-stable/latest/jenkins.war`.
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2. Open a terminal and navigate to the directory containing the WAR file.
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3. Run the command `java -jar jenkins.war` to start Jenkins on port 8080. Provide the `--httpPort` option if you experience a port conflict e.g. `java -jar jenkins.war --httpPort=9999`. After a couple of seconds you should see the message "Jenkins is fully up and running" in the log output.
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4. Open a browser of your choice and navigate to `localhost:<port>`. The default is `localhost:8080`.
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5. In the screen named "Unlock Jenkins", enter the password from the console output. Press the "Continue" button.
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6. In the screen named "Customize Jenkins", select the option "Install suggested plugins".
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7. In the screen named "Create First Admin User", enter all fields with credentials for your Jenkins administrator. Press the "Save and Continue" button.
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8. In the screen named "Instance Configuration", keep the default value. Press the "Save and Finish" button.
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9. You should see the message "Jenkins is ready!". Press the "Start using Jenkins" button. You'll be redirected to the Jenkins dashboard.
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<details><summary>Show Solution</summary>
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<p>
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Download the WAR file with the help of `wget`.
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```bash
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wget http://mirrors.jenkins.io/war-stable/latest/jenkins.war
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--2019-08-09 16:06:23-- http://mirrors.jenkins.io/war-stable/latest/jenkins.war
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Resolving mirrors.jenkins.io (mirrors.jenkins.io)... 52.202.51.185
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Connecting to mirrors.jenkins.io (mirrors.jenkins.io)|52.202.51.185|:80... connected.
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HTTP request sent, awaiting response... 302 Found
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Location: http://mirror.xmission.com/jenkins/war-stable/2.176.2/jenkins.war [following]
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--2019-08-09 16:06:23-- http://mirror.xmission.com/jenkins/war-stable/2.176.2/jenkins.war
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Resolving mirror.xmission.com (mirror.xmission.com)... 2607:fa18:0:3::13, 198.60.22.13
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Connecting to mirror.xmission.com (mirror.xmission.com)|2607:fa18:0:3::13|:80... connected.
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HTTP request sent, awaiting response... 200 OK
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Length: 77379386 (74M) [application/java-archive]
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Saving to: ‘jenkins.war’
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jenkins.war 100%[=================================================>] 73.79M 6.46MB/s in 14s
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2019-08-09 16:06:37 (5.36 MB/s) - ‘jenkins.war’ saved [77379386/77379386]
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```
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First, start the Jenkins server. Copy the password printed in the log output to the clipboard.
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```bash
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$ java -jar jenkins.war
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Running from: /Users/bmuschko/dev/tools/jenkins-2.150.1/jenkins.war
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webroot: $user.home/.jenkins
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Jul 16, 2019 4:59:30 PM org.eclipse.jetty.util.log.Log initialized
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INFO: Logging initialized @501ms to org.eclipse.jetty.util.log.JavaUtilLog
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Jul 16, 2019 4:59:30 PM winstone.Logger logInternal
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INFO: Beginning extraction from war file
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Jul 16, 2019 4:59:32 PM org.eclipse.jetty.server.handler.ContextHandler setContextPath
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WARNING: Empty contextPath
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Jul 16, 2019 4:59:32 PM org.eclipse.jetty.server.Server doStart
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INFO: jetty-9.4.z-SNAPSHOT; built: 2019-02-15T16:53:49.381Z; git: eb70b240169fcf1abbd86af36482d1c49826fa0b; jvm 1.8.0_181-b13
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Jul 16, 2019 4:59:32 PM org.eclipse.jetty.webapp.StandardDescriptorProcessor visitServlet
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INFO: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet
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Jul 16, 2019 4:59:32 PM org.eclipse.jetty.server.session.DefaultSessionIdManager doStart
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INFO: DefaultSessionIdManager workerName=node0
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Jul 16, 2019 4:59:32 PM org.eclipse.jetty.server.session.DefaultSessionIdManager doStart
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INFO: No SessionScavenger set, using defaults
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Jul 16, 2019 4:59:32 PM org.eclipse.jetty.server.session.HouseKeeper startScavenging
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INFO: node0 Scavenging every 660000ms
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Jenkins home directory: /Users/bmuschko/.jenkins found at: $user.home/.jenkins
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Jul 16, 2019 4:59:34 PM org.eclipse.jetty.server.handler.ContextHandler doStart
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INFO: Started w.@21ec5d87{Jenkins v2.176.1,/,file:///Users/bmuschko/.jenkins/war/,AVAILABLE}{/Users/bmuschko/.jenkins/war}
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Jul 16, 2019 4:59:34 PM org.eclipse.jetty.server.AbstractConnector doStart
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INFO: Started ServerConnector@388ffbc2{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}
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Jul 16, 2019 4:59:34 PM org.eclipse.jetty.server.Server doStart
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INFO: Started @4486ms
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Jul 16, 2019 4:59:34 PM winstone.Logger logInternal
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INFO: Winstone Servlet Engine v4.0 running: controlPort=disabled
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Jul 16, 2019 4:59:35 PM jenkins.InitReactorRunner$1 onAttained
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INFO: Started initialization
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Jul 16, 2019 4:59:35 PM jenkins.InitReactorRunner$1 onAttained
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INFO: Listed all plugins
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Jul 16, 2019 4:59:36 PM jenkins.InitReactorRunner$1 onAttained
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INFO: Prepared all plugins
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Jul 16, 2019 4:59:36 PM jenkins.InitReactorRunner$1 onAttained
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INFO: Started all plugins
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Jul 16, 2019 4:59:36 PM jenkins.InitReactorRunner$1 onAttained
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INFO: Augmented all extensions
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Jul 16, 2019 4:59:37 PM jenkins.InitReactorRunner$1 onAttained
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INFO: Loaded all jobs
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Jul 16, 2019 4:59:37 PM hudson.model.AsyncPeriodicWork$1 run
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INFO: Started Download metadata
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Jul 16, 2019 4:59:37 PM hudson.util.Retrier start
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INFO: Attempt #1 to do the action check updates server
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Jul 16, 2019 4:59:38 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
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INFO: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@54fe6e54: display name [Root WebApplicationContext]; startup date [Tue Jul 16 16:59:38 MDT 2019]; root of context hierarchy
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Jul 16, 2019 4:59:38 PM org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
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INFO: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@54fe6e54]: org.springframework.beans.factory.support.DefaultListableBeanFactory@3e77b308
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Jul 16, 2019 4:59:38 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
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INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@3e77b308: defining beans [authenticationManager]; root of factory hierarchy
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Jul 16, 2019 4:59:38 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
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INFO: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@2b22ca16: display name [Root WebApplicationContext]; startup date [Tue Jul 16 16:59:38 MDT 2019]; root of context hierarchy
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Jul 16, 2019 4:59:38 PM org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
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INFO: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@2b22ca16]: org.springframework.beans.factory.support.DefaultListableBeanFactory@28d4e2d4
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Jul 16, 2019 4:59:38 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
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INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@28d4e2d4: defining beans [filter,legacy]; root of factory hierarchy
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Jul 16, 2019 4:59:38 PM jenkins.install.SetupWizard init
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INFO:
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*************************************************************
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*************************************************************
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*************************************************************
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Jenkins initial setup is required. An admin user has been created and a password generated.
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Please use the following password to proceed to installation:
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34155b26571e4a2eb6eca68ddc4d5749
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This may also be found at: /Users/bmuschko/.jenkins/secrets/initialAdminPassword
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*************************************************************
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*************************************************************
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*************************************************************
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Jul 16, 2019 4:59:42 PM hudson.model.UpdateSite updateData
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INFO: Obtained the latest update center data file for UpdateSource default
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Jul 16, 2019 4:59:42 PM hudson.model.UpdateSite updateData
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INFO: Obtained the latest update center data file for UpdateSource default
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Jul 16, 2019 4:59:43 PM jenkins.InitReactorRunner$1 onAttained
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INFO: Completed initialization
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Jul 16, 2019 4:59:43 PM hudson.model.DownloadService$Downloadable load
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INFO: Obtained the updated data file for hudson.tasks.Maven.MavenInstaller
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Jul 16, 2019 4:59:43 PM hudson.util.Retrier start
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INFO: Performed the action check updates server successfully at the attempt #1
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Jul 16, 2019 4:59:43 PM hudson.model.AsyncPeriodicWork$1 run
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INFO: Finished Download metadata. 5,856 ms
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Jul 16, 2019 4:59:43 PM hudson.UDPBroadcastThread run
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INFO: Cannot listen to UDP port 33,848, skipping: java.net.SocketException: Can't assign requested address
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Jul 16, 2019 4:59:43 PM hudson.WebAppMain$3 run
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INFO: Jenkins is fully up and running
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```
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Paste the password from the clipboard into the password field.
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Select the option to install recommended plugins.
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The installation process will run for a couple of minutes.
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Enter credentials for your first admin user.
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Skip over the instance configuration step.
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Jenkins indicates that it is ready for use.
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The installation process is complete. You should land on the dashboard.
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</p>
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</details> |