mirror of
https://gitlab.com/libvirt/libvirt.git
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87 lines
3.7 KiB
ReStructuredText
87 lines
3.7 KiB
ReStructuredText
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GitLab CI Custom (Specific) Runners
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===================================
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.. contents::
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GitLab's CI allows additional machines to be added to the project's or group's
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pool of runners (a runner is a machine running the GitLab's
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`gitlab-runner <https://gitlab.com/gitlab-org/gitlab-runner/>`__ agent service).
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Upon registering the runner the runner will then be ready accepting CI jobs
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depending on the pipeline configuration. Unlike the shared runners provided
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directly by GitLab's hosted SaaS specific runners are only used within the
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project/group which they were registered to, so you don't need to worry about
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forks burning CPU cycles on your precious HW resources.
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Understandably, we respect your decision to keep your runners only visible to
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your fork, but for the sake of the community we'd appreciate if you decided to
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register your runner with the upstream libvirt project instead. As we're only
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interested in running upstream test workloads (which you can even help
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defining) maintenance and security of the HW is your own responsibility and so
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we can promise to never ask for physical or remote access to the machine.
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Machine Setup Howto
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-------------------
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The following sections will guide you through the necessary setup of your
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specific GitLab runners.
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gitlab-runner setup and registration
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The gitlab-runner agent needs to be installed on each machine that is supposed
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to run jobs. The association between a machine and a GitLab project
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happens with a registration token. To find the registration token for
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your repository/project, navigate on GitLab's web UI to:
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* Settings (the gears-like icon at the bottom of the left hand side
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vertical toolbar), then
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* CI/CD, then
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* Runners, and click on the *Expand* button, then
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* Under *Set up a specific Runner manually*, look for the value under
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*And this registration token:*
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Note that in order to register a runner with the upstream libvirt project
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you'll need to work with the project maintainers to successfully register your
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machine.
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Following the `registration <https://docs.gitlab.com/runner/register/>`__
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process, it's necessary to configure the runner tags, and optionally other
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configurations on the GitLab UI. Navigate to:
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* Settings (the gears like icon), then
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* CI/CD, then
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* Runners, and click on the *Expand* button, then
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* *Runners activated for this project*, then
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* Click on the *Edit* icon (next to the *Lock* Icon)
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Don't forget to add a tag to your runner as these are used to route specific
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jobs to specific runners, e.g. if a job in ``ci/integration.yml`` looked like
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this ::
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centos-stream-9-tests:
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...
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variables:
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# needed by libvirt-gitlab-executor
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DISTRO: centos-stream-9
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# can be overridden in forks to set a different runner tag
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LIBVIRT_CI_INTEGRATION_RUNNER_TAG: my-vm-host
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tags:
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- $LIBVIRT_CI_INTEGRATION_RUNNER_TAG
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it would mean that the CentOS Stream 9 job would only be scheduled on runners
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bearing the 'my-vm-host' tag.
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Running integration tests
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~~~~~~~~~~~~~~~~~~~~~~~~~
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Libvirt's integration tests run in a nested virtualization environment. So, if
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you wish to run integration tests on your bare-metal machine, you'll have to
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make use of GitLab's
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`custom executor <https://docs.gitlab.com/runner/executors/custom.html>`__
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feature which allows you to provision any kind of environment for a workload to
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run - in libvirt's case - a virtual machine. If you need any help with creating
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VM template images ready to run libvirt's integration test suite, have a look
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at the `libvirt-gitlab-executor <https://gitlab.com/libvirt/libvirt-custom-executor>`__
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project which encapsulates provisioning, execution, and teardown of the
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virtualized environments in a single tool.
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