Remove builds on stable-3.1 branch

Gerrit v3.1 is now EOL: [1] and its associated builds will be
archived [2] and can be safely removed from the main CI.

[1] https://www.gerritcodereview.com/2021-03-16-gerrit-3.4-release-plan.html#end-of-life-for-gerrit-31x
[2] https://archive-ci.gerritforge.com/view/Plugins-stable-3.1

Change-Id: If69fe1a3ca8ed4adce2b175dbd3d80fbef8103cd
82 files changed
tree: 506af73fc582d032eea69c0e05e5c3b9bb528b6d
  1. .gitignore
  2. Jenkinsfile
  3. README.md
  4. jenkins-docker/
  5. jenkins/
  6. vars/
  7. worker/
  8. yamllint-config.yaml
README.md

Gerrit CI scripts

Providing jobs

This project uses Jenkins Jobs Builder [1] to generate jobs from yaml descriptor files.

To add new jobs reuse existing templates, defaults etc. as much as possible. E.g. adding a job to build an additional branch of a project may be as easy as adding the name of the branch to an existing project.

To ensure well readable yaml-files, use yamllint [2] to lint the yaml-files. Yamllint can be downloaded using Python Pip:

pip3 install yamllint

To run the linter, execute this command from the project's root directory:

yamllint -c yamllint-config.yaml jenkins/**/*.yaml

Yamllint will not fix detected issues itself.

[1] https://docs.openstack.org/infra/jenkins-job-builder/index.html [2] https://pypi.org/project/yamllint/