c12s-kubespray/docs/ci-setup.md
Cristian Calin 52ee5d0fff
Various documentation updates (#8243)
* Docs: update CONTRIBUTING.md

* Docs: clean up outdated roadmap and point to github issues instead

* Docs: update note on kubelet_cgroup_driver

* Docs: update kata containers docs with note about cgroup driver

* Docs: note about CI specific overrides
2021-11-29 15:05:21 -08:00

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# CI Setup
## Pipeline
1. unit-tests: fast jobs for fast feedback (linting, etc...)
2. deploy-part1: small number of jobs to test if the PR works with default settings
3. deploy-part2: slow jobs testing different platforms, OS, settings, CNI, etc...
4. deploy-part3: very slow jobs (upgrades, etc...)
## Runners
Kubespray has 3 types of GitLab runners:
- packet runners: used for E2E jobs (usually long)
- light runners: used for short lived jobs
- auto scaling runners: used for on-demand resources, see [GitLab docs](https://docs.gitlab.com/runner/configuration/autoscale.html) for more info
## Vagrant
Vagrant jobs are using the [quay.io/kubespray/vagrant](/test-infra/vagrant-docker/Dockerfile) docker image with `/var/run/libvirt/libvirt-sock` exposed from the host, allowing the container to boot VMs on the host.
## CI Variables
In CI we have a set of overrides we use to ensure greater success of our CI jobs and avoid throttling by various APIs we depend on. See:
- [Docker mirrors](/tests/common/_docker_hub_registry_mirror.yml)
- [Test settings](/tests/common/_kubespray_test_settings.yml)