commit 248499c8f664c73f08fc62ae87eae8b6e44dec41
Author: Benjamin Muschko <benjamin.muschko@gmail.com>
Date:   Sun Nov 17 16:40:48 2019 -0700

    Initial commit

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+.DS_Store
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diff --git a/README.md b/README.md
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+# Exercise 1
+
+In this exercise, you will practice installing and configuring Jenkins on your machine.
+
+## Installing Jenkins
+
+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`.
+2. Open a terminal and navigate to the directory containing the WAR file.
+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.
+4. Open a browser of your choice and navigate to `localhost:<port>`. The default is `localhost:8080`.
+5. In the screen named "Unlock Jenkins", enter the password from the console output. Press the "Continue" button.
+6. In the screen named "Customize Jenkins", select the option "Install suggested plugins".
+7. In the screen named "Create First Admin User", enter all fields with credentials for your Jenkins administrator. Press the "Save and Continue" button.
+8. In the screen named "Instance Configuration", keep the default value. Press the "Save and Finish" button.
+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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+# Solution
+
+Download the WAR file with the help of `wget`.
+
+```bash
+wget http://mirrors.jenkins.io/war-stable/latest/jenkins.war
+--2019-08-09 16:06:23--  http://mirrors.jenkins.io/war-stable/latest/jenkins.war
+Resolving mirrors.jenkins.io (mirrors.jenkins.io)... 52.202.51.185
+Connecting to mirrors.jenkins.io (mirrors.jenkins.io)|52.202.51.185|:80... connected.
+HTTP request sent, awaiting response... 302 Found
+Location: http://mirror.xmission.com/jenkins/war-stable/2.176.2/jenkins.war [following]
+--2019-08-09 16:06:23--  http://mirror.xmission.com/jenkins/war-stable/2.176.2/jenkins.war
+Resolving mirror.xmission.com (mirror.xmission.com)... 2607:fa18:0:3::13, 198.60.22.13
+Connecting to mirror.xmission.com (mirror.xmission.com)|2607:fa18:0:3::13|:80... connected.
+HTTP request sent, awaiting response... 200 OK
+Length: 77379386 (74M) [application/java-archive]
+Saving to: ‘jenkins.war’
+
+jenkins.war                   100%[=================================================>]  73.79M  6.46MB/s    in 14s
+
+2019-08-09 16:06:37 (5.36 MB/s) - ‘jenkins.war’ saved [77379386/77379386]
+```
+
+First, start the Jenkins server. Copy the password printed in the log output to the clipboard.
+
+```bash
+$ java -jar jenkins.war
+Running from: /Users/bmuschko/dev/tools/jenkins-2.150.1/jenkins.war
+webroot: $user.home/.jenkins
+Jul 16, 2019 4:59:30 PM org.eclipse.jetty.util.log.Log initialized
+INFO: Logging initialized @501ms to org.eclipse.jetty.util.log.JavaUtilLog
+Jul 16, 2019 4:59:30 PM winstone.Logger logInternal
+INFO: Beginning extraction from war file
+Jul 16, 2019 4:59:32 PM org.eclipse.jetty.server.handler.ContextHandler setContextPath
+WARNING: Empty contextPath
+Jul 16, 2019 4:59:32 PM org.eclipse.jetty.server.Server doStart
+INFO: jetty-9.4.z-SNAPSHOT; built: 2019-02-15T16:53:49.381Z; git: eb70b240169fcf1abbd86af36482d1c49826fa0b; jvm 1.8.0_181-b13
+Jul 16, 2019 4:59:32 PM org.eclipse.jetty.webapp.StandardDescriptorProcessor visitServlet
+INFO: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet
+Jul 16, 2019 4:59:32 PM org.eclipse.jetty.server.session.DefaultSessionIdManager doStart
+INFO: DefaultSessionIdManager workerName=node0
+Jul 16, 2019 4:59:32 PM org.eclipse.jetty.server.session.DefaultSessionIdManager doStart
+INFO: No SessionScavenger set, using defaults
+Jul 16, 2019 4:59:32 PM org.eclipse.jetty.server.session.HouseKeeper startScavenging
+INFO: node0 Scavenging every 660000ms
+Jenkins home directory: /Users/bmuschko/.jenkins found at: $user.home/.jenkins
+Jul 16, 2019 4:59:34 PM org.eclipse.jetty.server.handler.ContextHandler doStart
+INFO: Started w.@21ec5d87{Jenkins v2.176.1,/,file:///Users/bmuschko/.jenkins/war/,AVAILABLE}{/Users/bmuschko/.jenkins/war}
+Jul 16, 2019 4:59:34 PM org.eclipse.jetty.server.AbstractConnector doStart
+INFO: Started ServerConnector@388ffbc2{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}
+Jul 16, 2019 4:59:34 PM org.eclipse.jetty.server.Server doStart
+INFO: Started @4486ms
+Jul 16, 2019 4:59:34 PM winstone.Logger logInternal
+INFO: Winstone Servlet Engine v4.0 running: controlPort=disabled
+Jul 16, 2019 4:59:35 PM jenkins.InitReactorRunner$1 onAttained
+INFO: Started initialization
+Jul 16, 2019 4:59:35 PM jenkins.InitReactorRunner$1 onAttained
+INFO: Listed all plugins
+Jul 16, 2019 4:59:36 PM jenkins.InitReactorRunner$1 onAttained
+INFO: Prepared all plugins
+Jul 16, 2019 4:59:36 PM jenkins.InitReactorRunner$1 onAttained
+INFO: Started all plugins
+Jul 16, 2019 4:59:36 PM jenkins.InitReactorRunner$1 onAttained
+INFO: Augmented all extensions
+Jul 16, 2019 4:59:37 PM jenkins.InitReactorRunner$1 onAttained
+INFO: Loaded all jobs
+Jul 16, 2019 4:59:37 PM hudson.model.AsyncPeriodicWork$1 run
+INFO: Started Download metadata
+Jul 16, 2019 4:59:37 PM hudson.util.Retrier start
+INFO: Attempt #1 to do the action check updates server
+Jul 16, 2019 4:59:38 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
+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
+Jul 16, 2019 4:59:38 PM org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
+INFO: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@54fe6e54]: org.springframework.beans.factory.support.DefaultListableBeanFactory@3e77b308
+Jul 16, 2019 4:59:38 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
+INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@3e77b308: defining beans [authenticationManager]; root of factory hierarchy
+Jul 16, 2019 4:59:38 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
+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
+Jul 16, 2019 4:59:38 PM org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
+INFO: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@2b22ca16]: org.springframework.beans.factory.support.DefaultListableBeanFactory@28d4e2d4
+Jul 16, 2019 4:59:38 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
+INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@28d4e2d4: defining beans [filter,legacy]; root of factory hierarchy
+Jul 16, 2019 4:59:38 PM jenkins.install.SetupWizard init
+INFO:
+
+*************************************************************
+*************************************************************
+*************************************************************
+
+Jenkins initial setup is required. An admin user has been created and a password generated.
+Please use the following password to proceed to installation:
+
+34155b26571e4a2eb6eca68ddc4d5749
+
+This may also be found at: /Users/bmuschko/.jenkins/secrets/initialAdminPassword
+
+*************************************************************
+*************************************************************
+*************************************************************
+
+Jul 16, 2019 4:59:42 PM hudson.model.UpdateSite updateData
+INFO: Obtained the latest update center data file for UpdateSource default
+Jul 16, 2019 4:59:42 PM hudson.model.UpdateSite updateData
+INFO: Obtained the latest update center data file for UpdateSource default
+Jul 16, 2019 4:59:43 PM jenkins.InitReactorRunner$1 onAttained
+INFO: Completed initialization
+Jul 16, 2019 4:59:43 PM hudson.model.DownloadService$Downloadable load
+INFO: Obtained the updated data file for hudson.tasks.Maven.MavenInstaller
+Jul 16, 2019 4:59:43 PM hudson.util.Retrier start
+INFO: Performed the action check updates server successfully at the attempt #1
+Jul 16, 2019 4:59:43 PM hudson.model.AsyncPeriodicWork$1 run
+INFO: Finished Download metadata. 5,856 ms
+Jul 16, 2019 4:59:43 PM hudson.UDPBroadcastThread run
+INFO: Cannot listen to UDP port 33,848, skipping: java.net.SocketException: Can't assign requested address
+Jul 16, 2019 4:59:43 PM hudson.WebAppMain$3 run
+INFO: Jenkins is fully up and running
+```
+
+Paste the password from the clipboard into the password field.
+
+![Unlock Jenkins](./images/unlock-jenkins.png)
+
+Select the option to install recommended plugins.
+
+![Customize Jenkins](./images/customize-jenkins.png)
+
+The installation process will run for a couple of minutes.
+
+![Plugin Installation Progress](./images/plugin-installation-progress.png)
+
+Enter credentials for your first admin user.
+
+![First Admin User](./images/first-admin-user.png)
+
+Skip over the instance configuration step.
+
+![Instance Configuration](./images/instance-configuration.png)
+
+Jenkins indicates that it is ready for use.
+
+![Jenkins Is Ready](./images/jenkins-ready.png)
+
+The installation process is complete. You should land on the dashboard.
+
+![Jenkins Dashboard](./images/jenkins-dashboard.png)
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diff --git a/exercises/02-job-creation/instructions.md b/exercises/02-job-creation/instructions.md
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+# Exercise 2
+
+In this exercise, you will create a new freestyle job and configure it to build with parameters. You'll also have a look at the Jenkins home directory to inspect the directory structure representing the job.
+
+## Defining, Configuring and Organizing a Job
+
+1. From the dashboard, click the "New Item" button.
+2. Enter the item name "my-freestyle-job" and select "Freestyle project". Press the "OK" button.
+3. In the job configuration, define the option to only keep the last 2 builds. Provide the description "A simple freestyle job". Upon building the project, a String parameter named `MESSAGE` should be provided. Press the "Save" button.
+4. Trigger a new build by pressing the "Build with Parameters" button. Enter a value for the `MESSAGE` parameter. The build should finish successfully. Locate the provided parameter value in the build information.
+5. Run the build two more times. What do you see?
+6. Create a new view named "test". Add the job to the view.
+7. Create a new folder named "freestyle" as part of the view. Move the job into the folder.
+8. Locate the build information in `$JENKINS_HOME`. Inspect the directory structure.
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+# Solution
+
+We'll start by creating the new freestyle job.
+
+![New Freestyle Job](./images/new-freestyle-job.png)
+
+Configure the job as follows.
+
+![Job Configuration](./images/job-configuration.png)
+
+The build will ask for a parameter value when triggered.
+
+![Build with Parameters](./images/build-with-params.png)
+
+The build history only stores the previous two builds.
+
+![Build History](./images/build-history.png)
+
+Create a new view.
+
+![New View](./images/new-view.png)
+
+After adding the job to the view, it will show up in a separate tab.
+
+![Job in View](./images/job-in-view.png)
+
+Create a new folder.
+
+![New Folder](./images/new-folder.png)
+
+The job became a child of the folder after moving it there.
+
+![Job In Folder](./images/job-in-folder.png)
+
+Navigating to the `job` directory under the Jenkins Home reveals the build history.
+
+```bash
+$ cd /Users/bmuschko/.jenkins/jobs/freestyle/jobs
+$ tree my-freestyle-job
+my-freestyle-job
+├── builds
+│   ├── 1
+│   │   ├── build.xml
+│   │   ├── changelog.xml
+│   │   └── log
+│   ├── 2
+│   │   ├── build.xml
+│   │   ├── changelog.xml
+│   │   └── log
+│   ├── 3
+│   │   ├── build.xml
+│   │   ├── changelog.xml
+│   │   └── log
+│   ├── lastFailedBuild -> -1
+│   ├── lastStableBuild -> 3
+│   ├── lastSuccessfulBuild -> 3
+│   ├── lastUnstableBuild -> -1
+│   ├── lastUnsuccessfulBuild -> -1
+│   └── legacyIds
+├── config.xml
+├── lastStable -> builds/lastStableBuild
+├── lastSuccessful -> builds/lastSuccessfulBuild
+└── nextBuildNumber
+
+8 directories, 15 files
+```
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diff --git a/exercises/03-build-trigger-and-steps/instructions.md b/exercises/03-build-trigger-and-steps/instructions.md
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+# Exercise 3
+
+In this exercise, you will configure the job to build based on a cron definition. Moreover, you will create downstream job that should be built automatically if the upstream job is successful.
+
+## Configuring Build Triggers and Steps for a Job
+
+1. Add a default value for the build parameter named `MESSAGE` e.g. `Hello World!`.
+2. Create a build trigger that builds the project every minute.
+3. Add a build step that executes the shell command `echo "Message: $MESSAGE"`. The message is value of the parameter.
+4. After a minute the first execution should have been triggered. Check the log output of the build and find the rendered message.
+5. Create another freestyle project named `downstream-job` in the same folder.
+6. Configure the initial job to execute the `downstream-job` if it was stable.
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diff --git a/exercises/03-build-trigger-and-steps/solution/solution.md b/exercises/03-build-trigger-and-steps/solution/solution.md
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+# Solution
+
+Modify the existing build parameter.
+
+![String Parameter](./images/string-parameter.png)
+
+Add the cron build trigger and the build step.
+
+![Build Trigger And Step](./images/build-trigger-and-step.png)
+
+The output render the interpolated value of the `echo` command.
+
+```bash
+Started by timer
+Running as SYSTEM
+Building in workspace /Users/bmuschko/.jenkins/workspace/freestyle/my-freestyle-job
+[my-freestyle-job] $ /bin/sh -xe /var/folders/02/3dgzjkqj4kz0g7lnrk0w93c00000gn/T/jenkins3548490840940668236.sh
++ echo "Message: Hello World!"
+Message: Hello World!
+Finished: SUCCESS
+```
+
+Create a new job in the same folder.
+
+![Both Jobs In Folder](./images/both-jobs-in-folder.png)
+
+Configure the downstream job from the initial job.
+
+![Downstream Job Configuration](./images/build-downstream.png)
+
+The downstream job indicates the upstream job.
+
+![Downstream Build Information](./images/executed-downstream-job.png)
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diff --git a/exercises/04-scm-configuration/instructions.md b/exercises/04-scm-configuration/instructions.md
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+# Exercise 4
+
+In this exercise, you will create a new job that pulls the source code from a repository on GitHub. Upon triggering a build, the job will execute a Gradle build.
+
+## Configuring a GitHub Repository
+
+1. Create a new freestyle job named `gradle-initializr`.
+2. Configure Git as the SCM and use the repository URL `git@github.com:bmuschko/gradle-initializr.git`. Only build from the branch `master`.
+3. Add a build step to run the Gradle command `clean build` using the Wrapper.
+4. Trigger a build and look at the output.
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@@ -0,0 +1,71 @@
+# Solution
+
+Create a new job.
+
+![Freestyle Job](./images/new-job.png)
+
+Configure the Git SCM and point the proper URL. The default is the `master` branch.
+
+![Git SCM](./images/git-scm.png)
+
+Create the Gradle build step.
+
+![Git SCM](./images/gradle-build-step.png)
+
+The build log should look similar to the output below.
+
+```bash
+Started by user Admin
+Running as SYSTEM
+Building in workspace /Users/bmuschko/.jenkins/workspace/gradle-initializr
+No credentials specified
+Cloning the remote Git repository
+Cloning repository git@github.com:bmuschko/gradle-initializr.git
+ > git init /Users/bmuschko/.jenkins/workspace/gradle-initializr # timeout=10
+Fetching upstream changes from git@github.com:bmuschko/gradle-initializr.git
+ > git --version # timeout=10
+ > git fetch --tags --force --progress git@github.com:bmuschko/gradle-initializr.git +refs/heads/*:refs/remotes/origin/*
+ > git config remote.origin.url git@github.com:bmuschko/gradle-initializr.git # timeout=10
+ > git config --add remote.origin.fetch +refs/heads/*:refs/remotes/origin/* # timeout=10
+ > git config remote.origin.url git@github.com:bmuschko/gradle-initializr.git # timeout=10
+Fetching upstream changes from git@github.com:bmuschko/gradle-initializr.git
+ > git fetch --tags --force --progress git@github.com:bmuschko/gradle-initializr.git +refs/heads/*:refs/remotes/origin/*
+ > git rev-parse refs/remotes/origin/master^{commit} # timeout=10
+ > git rev-parse refs/remotes/origin/origin/master^{commit} # timeout=10
+Checking out Revision 8e725ea3507f5ac0f8251234e1ff0f214b228d3d (refs/remotes/origin/master)
+ > git config core.sparsecheckout # timeout=10
+ > git checkout -f 8e725ea3507f5ac0f8251234e1ff0f214b228d3d
+Commit message: "Update docs"
+First time build. Skipping changelog.
+[Gradle] - Launching build.
+[gradle-initializr] $ gradle clean build
+Starting a Gradle Daemon (subsequent builds will be faster)
+> Task :clean UP-TO-DATE
+> Task :compileJava
+> Task :compileGroovy NO-SOURCE
+> Task :processResources
+> Task :classes
+> Task :bootJar
+> Task :jar SKIPPED
+> Task :assemble
+> Task :compileTestJava NO-SOURCE
+> Task :compileTestGroovy
+> Task :processTestResources NO-SOURCE
+> Task :testClasses
+> Task :test
+> Task :compileIntegrationTestJava NO-SOURCE
+> Task :compileIntegrationTestGroovy
+> Task :processIntegrationTestResources NO-SOURCE
+> Task :integrationTestClasses
+> Task :integrationTest
+2019-07-17 10:07:48.803  INFO 67741 --- [       Thread-6] o.s.s.concurrent.ThreadPoolTaskExecutor  : Shutting down ExecutorService 'applicationTaskExecutor'
+> Task :check
+> Task :build
+
+BUILD SUCCESSFUL in 30s
+8 actionable tasks: 7 executed, 1 up-to-date
+Build step 'Invoke Gradle script' changed build result to SUCCESS
+Finished: SUCCESS
+```
+
+As a side note: The GitHub plugin is [currently broken](https://issues.jenkins-ci.org/browse/JENKINS-11337) if you wanted to build multiple branches with a single job. You will have to model it as a multi-branch pipeline job.
\ No newline at end of file
diff --git a/exercises/05-test-execution-and-reporting/instructions.md b/exercises/05-test-execution-and-reporting/instructions.md
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+# Exercise 5
+
+In this exercise, you will configure the existing job to execute tests. Furthermore, you'll enhance the job to process the test results and code coverage metrics.
+
+## Displaying JUnit and JaCoCo Test Results
+
+1. Configure the `gradle-initializr` project to parse the JUnit XML results for unit test. The files can be found in the directory `build/test-results/test`.
+2. Execute the build twice to generate a graph. Have a look at the executed tests in the test results.
+3. Include all test results (unit and integration tests) in the reporting.
+4. Have a look at how the test result trend changes.
+5. Install the JaCoCo plugin.
+6. Reconfigure the Gradle build step to also generate JaCoCo reports: `clean build jacocoTestReport jacocoIntegrationTestReport`.
+7. Add a post-build action for publish the JaCoCo reports. Use the following path to look for results: `build/jacoco/**.exec`.
+8. Execute the build twice to generate a graph. Have a look at the code coverage results.
\ No newline at end of file
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@@ -0,0 +1,37 @@
+# Solution
+
+Publish the JUnit reports by pointing to the exact directory containing the XML files.
+
+![Publish JUnit Results](./images/publish-unit-tests.png)
+
+After executing the build twice you will see a test result trend graph.
+
+![JUnit Test Trend](./images/unit-test-result-trend.png)
+
+Publish the JUnit reporting by using a wild card.
+
+![Publish All JUnit Results](./images/publish-all-tests.png)
+
+The trend changes accordingly.
+
+![Changed Test Result Trend](./images/all-test-result-trend.png)
+
+Install the JaCoCo plugin.
+
+![JaCoCo Plugin](./images/jacoco-plugin.png)
+
+Change the task list executed by the Gradle build step.
+
+![JaCoCo Tasks](./images/jacoco-tasks.png)
+
+Configure JaCoCo reporting.
+
+![JaCoCo Configuration](./images/jacoco-config.png)
+
+The JaCoCo coverage trend renders after executing the build twice.
+
+![JaCoCo Coverage Report Trend](./images/jacoco-trend.png)
+
+You can drill into the details of the report.
+
+![JaCoCo Coverage Report Trend](./images/jacoco-report.png)
\ No newline at end of file
diff --git a/exercises/07-artifacts/instructions.md b/exercises/07-artifacts/instructions.md
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+# Exercise 7
+
+You will enhance the existing job to generate a JAR file and store it on Jenkins. The job should record the MD5 hash for the artifact. Later, you will configure a downstream job that should be able to reuse the existing artifact.
+
+## Storing and Fingerprinting Artifacts
+
+1. Create a post-build action for archiving JAR files with the pattern `build/libs/*.jar`. Enable the fingerprinting option.
+2. Execute the build. The build should list the artifact `gradle-initializr-1.0.0.jar`.
+3. Have a look at the recorded fingerprints of this build.
+4. Render the MD5 hash of the artifact and the usage of the artifact.
+5. Install the Copy Artifacts plugin.
+6. Create a downstream job named `consumer`.
+7. Configure the downstream job to use the artifact produced by the upstream job.
+8. Run the the build for the job `gradle-initializr`.
+9. Have a look at the fingerprints of the downstream job.
\ No newline at end of file
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@@ -0,0 +1,29 @@
+# Solution
+
+In the job configuration, archive the artifact produced by the build. Check the box for generating fingerprints.
+
+![Archive Artifacts](./images/archive-artifacts.png)
+
+Execute the build and find the archived artifact.
+
+![Archived Artifact](./images/build-artifact.png)
+
+Have a look at the details of the fingerprinting.
+
+![Fingerprint Details](./images/fingerprint-details.png)
+
+Install the Copy Artifacts plugin.
+
+![Copy Artifacts Plugin](./images/copy-artifacts-plugin.png)
+
+Trigger the downstream job upon success.
+
+![Trigger Downstream](./images/trigger-upstream.png)
+
+Copy artifacts from the upstream job.
+
+![Copy Artifact From Upstream](./images/copy-artifacts.png)
+
+You can see the full usage of the artifact in upstream and downstream jobs.
+
+![Fingerprint Usage](./images/fingerprints-upstream.png)
\ No newline at end of file
diff --git a/exercises/08-matrix-security/instructions.md b/exercises/08-matrix-security/instructions.md
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+++ b/exercises/08-matrix-security/instructions.md
@@ -0,0 +1,11 @@
+# Exercise 8
+
+In this exercise, you'll create a new user and assign read permissions. You will verify permissions for the admin user and the new user by logging into Jenkins with the appropriate credentials.
+
+## Creating a User and Setting Permissions
+
+1. Ensure that you are logged in as admin user.
+2. Create a new user named `miller`. Provide the relevant information.
+3. Configure Matrix Security by adding the admin user and the newly created user. The admin user should have all permissions. The `miller` user should only have read permissions for jobs and views.
+4. Log out of the system.
+5. Log in with the user `miller` and navigate to one of the jobs. Notice that you cannot edit the configuration or trigger a new build.
\ No newline at end of file
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+++ b/exercises/08-matrix-security/solution/solution.md
@@ -0,0 +1,21 @@
+# Solution
+
+Create the new user.
+
+![Create User](./images/create-user.png)
+
+The new user is now listed.
+
+![User Overview](./images/user-overview.png)
+
+Configure users and permissions.
+
+![Matrix Security](./images/matrix-security-permissions.png)
+
+Log in with new user.
+
+![Matrix Security](./images/user-login.png)
+
+The job doesn't allow any editing or build triggering operations.
+
+![Job Overview](./images/job-overview.png)
\ No newline at end of file
diff --git a/exercises/09-rest-api/instructions.md b/exercises/09-rest-api/instructions.md
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+++ b/exercises/09-rest-api/instructions.md
@@ -0,0 +1,17 @@
+# Exercise 9
+
+This exercise explores the use of the REST API to trigger a build for an existing job. You will configure security features as necessary.
+
+## Using the REST API for Common Operations
+
+1. Create a new user named `buildbot`.
+2. Add adminstration permissions for the user.
+3. Log in with user `buildbot`.
+4. Generate the API token for the user.
+5. Generate a Jenkins crumb from the command line.
+6. Export the environment variables `JENKINS_CRUMB` and `JENKINS_API_TOKEN` with the correct values.
+7. Trigger a build of the job `gradle-initializr` with a `curl` command using the REST API.
+8. Disable the job `gradle-initializr` with a `curl` command using the REST API.
+9. Reenable the job `gradle-initializr` with a `curl` command using the REST API.
+10. Download the Jenkins CLI client.
+11. Trigger the build of the job `gradle-initializr` with a `curl` command using the Jenkins CLI.
\ No newline at end of file
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diff --git a/exercises/09-rest-api/solution/solution.md b/exercises/09-rest-api/solution/solution.md
new file mode 100644
index 0000000..88ed23b
--- /dev/null
+++ b/exercises/09-rest-api/solution/solution.md
@@ -0,0 +1,50 @@
+# Solution
+
+Create the new user.
+
+![Create User](./images/create-user.png)
+
+Add user permissions.
+
+![User Permissions](./images/user-permissions.png)
+
+Generate the API token.
+
+![API Token](./images/api-token.png)
+
+Generate the Jenkins crumb from the CLI.
+
+```bash
+$ curl -u "buildbot:pwd" 'http://localhost:8080/crumbIssuer/api/xml?xpath=concat(//crumbRequestField,":",//crumb)'
+Jenkins-Crumb:890d0b4c9c1b111deb55b196813a0ae1
+$ export JENKINS_CRUMB=Jenkins-Crumb:890d0b4c9c1b111deb55b196813a0ae1
+$ export JENKINS_API_TOKEN=11e2f3c68399b6bc3a28bc06e002be104d
+```
+
+Trigger a build with the `curl` command.
+
+```bash
+$ curl -X POST -H "$JENKINS_CRUMB" http://buildbot:$JENKINS_API_TOKEN@localhost:8080/job/gradle-initializr/build
+```
+
+Disable the job via the REST API. You will see that the job indicated its status.
+
+```bash
+$ curl -X POST -H "$JENKINS_CRUMB" http://buildbot:$JENKINS_API_TOKEN@localhost:8080/job/gradle-initializr/disable
+```
+
+![Disabled Job](./images/disabled-job.png)
+
+Reenable the job.
+
+```bash
+$ curl -X POST -H "$JENKINS_CRUMB" http://buildbot:$JENKINS_API_TOKEN@localhost:8080/job/gradle-initializr/enable
+```
+
+Download the Jenkins URL by calling the URL `localhost:8080/jnlpJars/jenkins-cli.jar` from the browser.
+
+In the terminal, navigate to the directory that contains the Jenkins CLI JAR file. Use the Jenkins CLI to trigger a build with the correct command. This simply provide the password instead of the API token.
+
+```bash
+$ java -jar jenkins-cli.jar -s http://localhost:8080 -auth buildbot:pwd build gradle-initializr
+```
\ No newline at end of file
diff --git a/exercises/10-distributed-builds/Vagrantfile b/exercises/10-distributed-builds/Vagrantfile
new file mode 100644
index 0000000..339755e
--- /dev/null
+++ b/exercises/10-distributed-builds/Vagrantfile
@@ -0,0 +1,35 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# All Vagrant configuration is done below. The "2" in Vagrant.configure
+# configures the configuration version (we support older styles for
+# backwards compatibility). Please don't change it unless you know what
+# you're doing.
+Vagrant.configure("2") do |config|
+  config.vm.box = "ubuntu/trusty64"
+
+  (1..2).each do |number|
+    config.vm.define "jenkins-agent-#{number}" do |node|
+      node.vm.network "forwarded_port", guest: 22, host: "909#{number}"
+      node.vm.network "private_network", ip: "192.168.99.20#{number}"
+      node.vm.hostname = "jenkins-agent-#{number}"
+    end
+  end
+
+  config.vm.provider "virtualbox" do |vb|
+    vb.memory = "2048"
+  end
+
+  config.vm.provision "shell", inline: <<-SHELL
+    sudo add-apt-repository ppa:openjdk-r/ppa -y
+    sudo apt-get update
+    sudo apt-get -y install openjdk-8-jdk
+    sudo update-alternatives --config java
+    sudo apt-get -y install git
+    sudo useradd -m jenkins
+    echo "jenkins:jenkins" | sudo chpasswd
+    sudo keytool -importkeystore -srckeystore /etc/ssl/certs/java/cacerts -destkeystore /etc/ssl/certs/java/cacerts.jks -deststoretype JKS -srcstorepass changeit -deststorepass changeit -noprompt
+    sudo mv /etc/ssl/certs/java/cacerts.jks /etc/ssl/certs/java/cacerts
+    sudo /var/lib/dpkg/info/ca-certificates-java.postinst configure
+  SHELL
+end
diff --git a/exercises/10-distributed-builds/instructions.md b/exercises/10-distributed-builds/instructions.md
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--- /dev/null
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@@ -0,0 +1,17 @@
+# Exercise 10
+
+You will start a VM using Vagrant as practice environment to set up a distributed build with 2 agents.
+
+## Configuring and Executing Jobs in a Distributed Build
+
+1. Go to "Manage Jenkins" > "Manage Nodes". You should see a single `master` node.
+2. Configure the `master` node by setting the # of executor value to 0. That will take care of never using the `master` for job workload.
+3. Have other physical or virtual machines ready that can act as agent nodes. Log into the machine as `root` user and create a new user named `jenkins` with the commands `useradd -d /var/lib/jenkins jenkins` and `passwd jenkins`. From the `master` node, copy the contents of the `id_rsa.key` file to the clipboard. Paste the contents of the clipboard to the file `/var/lib/jenkins/.ssh/authorized_keys`.
+4. Add new nodes by clicking "New Nodes". Enter an appropriate name and select the option "Permanent Agent". Use the remote directory `/home/jenkins/jenkins_slave` and set the # of executors to 2. Enter the host and provide credentials by selecting "SSH Username with private key". To keep things easy select "Non verifying Verification Strategy".
+4. Trigger a build. You should see that the build is only executed on the agent and not the `master` node.
+5. Add at least one more agent.
+6. Trigger a build. You should see that the build can be executed on any of the agents.
+7. Configure one of the agents to only build jobs with a specific label e.g. `java`. Change the "Usage" field to "Only build jobs with label expressions matching this node".
+8. Configure the `gradle-initializr` job and assign the label `java`.
+9. Trigger a build of the `gradle-initializr` job. It is only executed by the dedicated agent.
+10. Trigger other jobs that do not have the label `java` assigned to them. They are waiting for an agent that can execute the build.
\ No newline at end of file
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+# Solution
+
+Configure the `master` node.
+
+![Master Configuration](./images/master-config.png)
+
+Add a new agent node.
+
+![Agent Configuration](./images/agent-config.png)
+
+You will see that the `master` node isn't even listed anymore in the executor overview.
+
+![Node Overview](./images/node-overview.png)
+
+Reconfigure the agent node to only build jobs with a specific label.
+
+![Agent Label Configuration](./images/agent-label-config.png)
+
+Reconfigure the job to only use agents that can handle a specific label.
+
+![Job Label Configuration](./images/job-label-config.png)
+
+A build of the job is now only handled by an agent with the assigned label.
+
+![Build For Labeled Agent](./images/build-for-label.png)
+
+Other jobs sit in a queue waiting for an agent that can handle the execution criteria.
+
+![Build For Labeled Agent](./images/queued-job.png)
\ No newline at end of file
diff --git a/exercises/11-pipeline-job/instructions.md b/exercises/11-pipeline-job/instructions.md
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+# Exercise 11
+
+In this exercise, you will set up a new multi-branch pipeline job and point it to an existing repository on GitHub. You will visualize the pipeline with the standard view and the Blue Ocean plugin.
+
+## Creating a Pipeline Job
+
+1. Have a look at the [repository](https://github.com/bmuschko/todo-spring-boot) `bmuschko/todo-spring-boot` on GitHub. The repository already contains the build definition in the form of a `Jenkinsfile`. Identify each of the steps.
+2. In Jenkins, set up the credentials `SONARCLOUD_TOKEN` and `HEROKU_API_KEY` if they don't exist yet.
+3. Create a new multi-branch pipeline job for the repository.
+4. The initial build is triggered automatically. Have a look at the pipeline in the standard view and its console output.
+5. Install the Blue Ocean plugin.
+6. Open the Blue Ocean pipeline visualization for the job. Manually trigger the deployment step. Open a browser with the deployed application on Heroku.
+7. Create a new branch named `bugfix` and push it to the remote repository. The code should be based off of `master`.
+8. Select "Scan Multibranch Pipeline Now". The job should build the new branch.
\ No newline at end of file
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+# Solution
+
+The created credentials required for the job.
+
+![Credentials](./images/credentials.png)
+
+Create a new item from the dashboard.
+
+![Multi-Branch Pipeline Job](./images/multi-branch-pipeline-job.png)
+
+Point the job to the SCM.
+
+![Multi-Branch Pipeline Job](./images/job-scm.png)
+
+Upon pressing the OK button, the job will scan all available branches in the repository.
+
+```bash
+Started
+[Thu Jul 18 09:23:53 MDT 2019] Starting branch indexing...
+ > git --version # timeout=10
+ > git ls-remote --symref git@github.com:bmuschko/todo-spring-boot.git # timeout=10
+Creating git repository in /Users/bmuschko/.jenkins/caches/git-a68a5e08a54549aaef01872e9adb6218
+ > git init /Users/bmuschko/.jenkins/caches/git-a68a5e08a54549aaef01872e9adb6218 # timeout=10
+Setting origin to git@github.com:bmuschko/todo-spring-boot.git
+ > git config remote.origin.url git@github.com:bmuschko/todo-spring-boot.git # timeout=10
+Fetching & pruning origin...
+Listing remote references...
+ > git config --get remote.origin.url # timeout=10
+ > git --version # timeout=10
+ > git ls-remote -h git@github.com:bmuschko/todo-spring-boot.git # timeout=10
+Fetching upstream changes from origin
+ > git config --get remote.origin.url # timeout=10
+ > git fetch --tags --force --progress origin +refs/heads/*:refs/remotes/origin/* --prune
+Checking branches...
+  Checking branch master
+      ‘Jenkinsfile’ found
+    Met criteria
+Scheduled build for branch: master
+Processed 1 branches
+[Thu Jul 18 09:23:57 MDT 2019] Finished branch indexing. Indexing took 4 sec
+Finished: SUCCESS
+```
+
+You can see the different stages of the pipeline in the standard view.
+
+![Standard Pipeline](./images/standard-pipeline.png)
+
+You can see the different stages of the pipeline in the standard view.
+
+![Standard Pipeline](./images/standard-pipeline.png)
+
+To console output allows for triggering or aborting the manual deployment step.
+
+![Console Manual Step](./images/console-manual-step.png)
+
+Install the Blue Ocean plugin.
+
+![Blue Ocean Plugin](./images/blue-ocean-plugin.png)
+
+The Blue Ocean pipeline view offers a UI element for triggering a manual step.
+
+![Blue Ocean Manual Step](./images/blue-ocean-manual-step.png)
+
+Press the button for processing with the manual step.
+
+![Blue Ocean Triggered Manual Step](./images/triggered-manual-step.png)
+
+The finished pipeline in Blue Ocean.
+
+![Blue Ocean Finished Pipeline](./images/finished-build.png)
+
+Check out the repository and push a new branch.
+
+```bash
+$ git clone git@github.com:bmuschko/todo-spring-boot.git
+Cloning into 'todo-spring-boot'...
+remote: Enumerating objects: 230, done.
+remote: Total 230 (delta 0), reused 0 (delta 0), pack-reused 230
+Receiving objects: 100% (230/230), 108.69 KiB | 452.00 KiB/s, done.
+Resolving deltas: 100% (105/105), done.
+$ cd todo-spring-boot
+$ git branch bugfix
+$ git checkout bugfix
+Switched to branch 'bugfix'
+$ git push origin bugfix
+Total 0 (delta 0), reused 0 (delta 0)
+remote:
+remote: Create a pull request for 'bugfix' on GitHub by visiting:
+remote:      https://github.com/bmuschko/todo-spring-boot/pull/new/bugfix
+remote:
+To github.com:bmuschko/todo-spring-boot.git
+ * [new branch]      bugfix -> bugfix
+```
+
+After scanning the repository, the new branch will be available and was triggered to build automatically.
+
+![Bugfix Branch](./images/bugfix-branch.png)
\ No newline at end of file
diff --git a/exercises/12-basic-jenkinsfile/instructions.md b/exercises/12-basic-jenkinsfile/instructions.md
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+# Exercise 12
+
+In this exercise, you'll create a declarative pipeline for a Go-based project. The `Jenkinsfile` will use some of the basic features of the pipeline DSL.
+
+## Writing a Basic Jenkinsfile
+
+1. Create a new GitHub repository named `go-on-jenkins`.
+2. Create a new `Jenkinsfile` in the root directory of the repository as well as a simple `main.go` file. The main function just prints "Hello World!". Initialize the project via Go Modules.
+3. Commit the files and push them to the remote repository.
+4. Set up a new pipeline job for this repository in Jenkins.
+5. Install the [Jenkins Go plugin](https://plugins.jenkins.io/golang).
+6. Configure the latest Go runtime as global tool.
+7. Enhance the `Jenkinsfile` based on the following requirements. The Jenkinsfile should use the declarative syntax.
+    * The job can run on all agents.
+    * The job sets the environment variable `GO111MODULES=on`.
+    * The job uses the Go runtime from the global tool definition.
+    * The job specifies one build stage named "Build". The build stage executes the shell command `go build`.
\ No newline at end of file
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@@ -0,0 +1,54 @@
+# Solution
+
+Create a new job.
+
+![New Job](./images/new-job.png)
+
+Configure the appropriate SCM.
+
+![Job SCM](./images/job-scm.png)
+
+Install the Go plugin.
+
+![Go Plugin](./images/go-plugin.png)
+
+Configure a Go runtime as global tool.
+
+![Go Global Tool](./images/go-global-tool.png)
+
+The `main.go` file could similar to the one below.
+
+```go
+package main
+
+import "fmt"
+
+func main() {
+    fmt.Println("hello world")
+}
+```
+
+The final `Jenkinsfile` looks similar to the solution below.
+
+```groovy
+pipeline {
+    agent any
+    tools {
+        go 'go-1.12'
+    }
+    environment {
+        GO111MODULE = 'on'
+    }
+    stages {
+        stage('Build') {
+            steps {
+                sh 'go build'
+            }
+        }
+    }
+}
+```
+
+A build of the job installs the Go runtime and executes the build step.
+
+![Declarative Pipeline](./images/declarative-pipeline.png)
\ No newline at end of file
diff --git a/exercises/13-advanced-jenkinsfile/instructions.md b/exercises/13-advanced-jenkinsfile/instructions.md
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+++ b/exercises/13-advanced-jenkinsfile/instructions.md
@@ -0,0 +1,20 @@
+# Exercise 13
+
+We'll want to enhance the pipeline by additional stages and implement a release workflow. The project is going to use an external tool called [GoReleaser](https://goreleaser.com/) to publish cross-compiled artifacts to [GitHub Releases](https://help.github.com/en/github/administering-a-repository/creating-releases). The binaries should only be released if the commit has been tagged.
+
+## Enhancing a Pipeline With Advanced Features
+
+1. Add stage named `Test` that executes the Go `test` command.
+    * Add a build step that runs the shell command `go test ./...`.
+    * Generate code coverage metrics by adding the option `-coverprofile=coverage.txt` to the build step.
+    * Publish the code coverage metrics to CodeCov by sending a curl command `curl -s https://codecov.io/bash | bash -s -`.
+    * Log into [CodeCov](https://codecov.io/), determine the CodeCov token for the repository (aka Repository Upload Token) and set it up as credential in Jenkins.
+    * Retrieve the credential and set the value as environment variable named `CODECOV_TOKEN`.
+2. Add a stage named `Code Analysis` that uses [golangci-lint](https://github.com/golangci/golangci-lint) to detect issues with the code.
+    * Add a build step for installing the `golangci-lint` with the shell command `curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b $GOPATH/bin v1.17.1`
+    * Add a build step that runs `golangci-lint` with the shell command `golangci-lint run`.
+3. Add a stage named `Release` that uses [GoReleaser](https://github.com/goreleaser/goreleaser).
+    * Only build this step if the commit has been tagged.
+    * Set up a credential in Jenkins named `github_token` and set your GitHub token. 
+    * Retrieve the credential and set the value as environment variable named `GITHUB_TOKEN`.
+    * Add a build step that runs the shell command `curl -sL https://git.io/goreleaser | bash`.
\ No newline at end of file
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@@ -0,0 +1,50 @@
+# Solution
+
+Create the credentials for the CodeCov token.
+
+![CodeCov Credentials](./images/codecov_token_credentials.png)
+
+You can implement the "Test" stage as follows.
+
+```groovy
+stage('Test') {
+    environment {
+        CODECOV_TOKEN = credentials('CODECOV_TOKEN')
+    }
+    steps {
+        sh 'go test ./... -coverprofile=coverage.txt'
+        sh "curl -s https://codecov.io/bash | bash -s -"
+    }
+}
+```
+
+You can implement the "Code Analysis" stage as follows.
+
+```groovy
+stage('Code Analysis') {
+    steps {
+        sh 'curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b $GOPATH/bin v1.17.1'
+        sh 'golangci-lint run'
+    }
+}
+```
+
+Create the credentials for the GitHub token.
+
+![GitHub Credentials](./images/github_token_credentials.png)
+
+You can implement the "Release" stage as follows.
+
+```groovy
+stage('Release') {
+    when {
+        buildingTag()
+    }
+    environment {
+        GITHUB_TOKEN = credentials('GITHUB_TOKEN')
+    }
+    steps {
+        sh 'curl -sL https://git.io/goreleaser | bash'
+    }
+}
+```
\ No newline at end of file
diff --git a/exercises/14-shared-library/instructions.md b/exercises/14-shared-library/instructions.md
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@@ -0,0 +1,13 @@
+# Exercise 14
+
+In this exercise, you'll take the existing pipeline definition from the previous exercise and turn it into a reusable shared library.
+
+## Writing and Using a Shared Library
+
+1. Set up a new GitHub repository named `jenkins-standard-go-pipeline`. It will define a standard pipeline definition for Go projects implemented as shared library.
+2. Add the file `vars/standard.groovy` that defines the declarative pipeline as global variable. Make the Go tool name and golang-ci version configurable with the help of parameters.
+3. Push the changes to the `master` branch and configure the shared library in Jenkins.
+4. Configure the shared library for consumption in Jenkins with the name `go-pipeline`.
+5. Set up a new GitHub repository named `go-project-by-template`. Initialize a new Go project by running `go mod init github.com/bmuschko/hello-world` and adding a simple `main.go` file.
+6. Add a new `Jenkinsfile`. Consume the shared library and call the global variable.
+7. Trigger a build and visualize the pipeline in Jenkins.
\ No newline at end of file
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@@ -0,0 +1,87 @@
+# Solution
+
+The directory structure of shared library repository should have the following structure.
+
+```
+.
+└── vars
+    └── standard.groovy
+
+1 directory, 1 file
+```
+
+Define the pipeline as global variable in the file `standard.groovy`.
+
+```groovy
+def call(String goToolName = 'go-1.12', String golangCiVersion = 'v1.12.5') {
+    pipeline {
+        agent any
+        tools {
+            go "$goToolName"
+        }
+        environment {
+            GO111MODULE = 'on'
+        }
+        stages {
+            stage('Compile') {
+                steps {
+                    sh 'go build'
+                }
+            }
+            stage('Test') {
+                environment {
+                    CODECOV_TOKEN = credentials('CODECOV_TOKEN')
+                }
+                steps {
+                    sh 'go test ./... -coverprofile=coverage.txt'
+                    sh "curl -s https://codecov.io/bash | bash -s -"
+                }
+            }
+            stage('Code Analysis') {
+                steps {
+                    sh "curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b $GOPATH/bin $golangCiVersion"
+                    sh 'golangci-lint run'
+                }
+            }
+            stage('Release') {
+                when {
+                    buildingTag()
+                }
+                environment {
+                    GITHUB_TOKEN = credentials('GITHUB_TOKEN')
+                }
+                steps {
+                    sh 'curl -sL https://git.io/goreleaser | bash'
+                }
+            }
+        }
+    }
+}
+```
+
+Configure the shared library under _Manage Jenkins > Configure System_.
+
+![Shared Library Configuration](./images/shared-library-config.png)
+
+The directory structure should look as shown below.
+
+```
+.
+├── Jenkinsfile
+├── go.mod
+└── main.go
+
+0 directories, 3 files
+```
+
+The `Jenkinsfile` uses the shared library and calls the global variable. Optionally, you can configure the pipeline by passing in parameters.
+
+```groovy
+@Library('go-pipeline') _
+
+standard()
+```
+
+The resulting build will go through all the pipeline stages defined in the shared library.
+
+![Pipeline View](./images/pipeline-view.png)
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