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Jenkins Configuration as Code Sandbox

This is an example of Jenkins Configuration as Code with GitLab.

This is a fully working CI/CD setup with Jenkins and GitLab where everything is put under version control:

This allows for you to:

  • Do local development of the CI/CD setup. Giving self confidence to do refactorings and keep all the scripts clean.
  • Allow code review of changes to the installation. Enable anyone to contribute to an innovative build CI/CD process.
  • Manage different installations in different branches. Push to the branch of installation X and X will automatically be re-configured.

It also demonstrates a pattern where a "contract" is established between application repositories and the infrastructure. A jenkins-settings.json-file is created in the application repositories to tweak the build process. This means:

  • The pipeline code can be developed generically. Pipelines are not created to take care of a specific repo. Generic features are created, and documented, and the application developers chooses what features that should apply to thir repo. By editing /jenkins-settings.json in their repo. A default set of settings are derived and applied if no properties found in the repo.
  • The solution becomes scalable and can handle a vast amount of application repositories. With low effort needed for support.

Usage

Start Environment

docker-compose up -d 

GitLab will be available in a few moments at http://localhost/ and you can login with credentials found here.

Jenkins now available on: http://localhost:8080/

JobDSL docs available at: http://localhost:8080/plugin/job-dsl/api-viewer/index.html

Destroy Environment

docker-compose down -v --rmi local

all services are down and data lost

Enjoy!