cje-crash-course/exercises/14-shared-library/instructions.md

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.