The course is part of this learning path
This course introduces you to Jenkins, a popular open-source tool used to perform Continuous Integration and Continuous Delivery.
We spend time early on reviewing the key Jenkins features and associated terminology. We then take you through a deep dive in configuring Jenkins to perform automated builds using the Jenkins web administration console in hands-on demonstrations, ensuring that you become familiarised with Jenkins and how to administer it. We’ll demonstrate features such as:
- Installing and setting up Jenkins
- Creating and configuring pipelines manually
- Creating and configuring pipelines using a Jenkinsfile
- Configuring Jenkins pipelines using the Blue Ocean interface
- Defining build execution environments using docker containers
- Triggering build pipelines, manually and automatically
- Navigating downstream and upstream build projects
- Connecting to version control repositories such as GitHub
- Setting up build pipelines for Java-based projects using Gradle
- Recording artifacts and test results
- Setting up and scaling out Jenkins with multiple build agents and executors using SSH
What you'll learn:
- The basic principles of build automation as implemented within Jenkins and how should be applied to manage and maintain building, testing, and deploying your own enterprise software projects
- How to install, setup, and configure Jenkins pipelines
- The key differences between Jenkins declarative and scripted pipelines
- How to manage build artifacts and test results
- How to scale out Jenkins using Master and Build Agent setups using SSH
- The benefits of codifying pipeline build instructions using a Jenkinsfile
- How to leverage Docker containers within a Jenkins pipeline to provide additional build isolation and flexibility
- How to install and use the newer more modern pipeline centric BlueOcean user interface
- How to integrate and leverage 3rd party build tools like Gradle, Maven, Yarn, Webpack, and many more within a Jenkins pipeline
This training course provides many hands-on demonstrations where you will observe first hand how to use Jenkins to build and release different types of software projects, for example:
- Building a back end application developed using Java, Gradle, and Docker, requiring Jenkins to compile the source code, packaging it into a WebArchive file, and then finally releasing it into a Tomcat based Docker image complete with Splunk based instrumentation for logging and monitoring
- A basic understanding of CICD, or Continuous Integration and Continuous Delivery
- A basic understanding of software development and the software development life cycle
- A basic understanding of version control and associated workflows
- Software Build and Release Engineers
- Software Developers
- DevOps Practitioners
- [Instructor] Okay, welcome back! In this demonstration, we're going to do our first proper code build.
So again, if we jump back into the terminal, let's navigate to var/lib/jenkins. Do a directory listing. We see here that we have a workspace folder. We'll navigate into there. Again, we do a directory listing. We can see here that we've got individual folders for each of our build jobs. So, we'll navigate into BuildJob3, do another directory listing, and here you can see that when the build ran, it did a Git clone of our repository. If we navigate into the build directory, and we do a directory listing, here we can see the files that have been transpiled. These are the outputs. And if we take these files, and we serve them up, and we navigate to index.html, we'll see our React web app. We'll jump back to the Jenkins web console.
We'll navigate up to the project. And this time we'll click on Workspace. So, the workspace view within Jenkins is the same view that we just had a look at on the file system. If we look in the build directory, again, we see our files that are used at serve time. Now, if we click on the all files in zip, we'll actually download a copy of that to our workstation. So, if we jump over into our terminal again, we'll start another session. And this time if we navigate to our Downloads folder, we'll now unzip the build.zip file that we downloaded, navigate into it and do Control + L.
If we start up a utility called http-server, this is a simple web server that basically serves up the current directory. If we navigate to the 127.0.0.1:8080 link, you'll see that our web app is up and running. So, this is showing that Jenkins has been used to do the transpilation and the minification of our web files. Okay, so in summary, all we've done is we've created a freestyle project, pointed it at our React sample web app hosted on GitHub, and then we used Jenkins to do the transpilation as well as the minification of our web assets.
About the Author
Jeremy is the DevOps Content Lead at Cloud Academy where he specializes in developing technical training documentation for DevOps.
He has a strong background in software engineering, and has been coding with various languages, frameworks, and systems for the past 20+ years. In recent times, Jeremy has been focused on DevOps, Cloud, Security, and Machine Learning.
Jeremy holds professional certifications for both the AWS and GCP cloud platforms.