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56 lines
2.8 KiB
Markdown
56 lines
2.8 KiB
Markdown
# Continuous Integration Jobs for the CentOS CI
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- [dedicated Jenkins instance][ceph_csi_ci] for Ceph-CSI
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- Jenkins is hosted on [OpenShift in the CentOS CI][app_ci_centos_org]
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- scripts and Jenkins jobs are hosted in the Ceph-CSI repository (ci/centos
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branch)
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- a Jenkins Pipeline is used to reserve bare metal system(s), and run jobs on
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those systems
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## Repository/Branch Structure
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This is the `ci/centos` branch, where all the scripts for the Jenkins jobs are
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maintained. The tests that are executed by the jobs are part of the normal
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projects branches.
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As an example, the `containerized-tests` Jenkins job consists out of the
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following files:
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- `jobs/containerized-tests.yaml` is a [Jenkins Job Builder][jjb] configuration
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that describes the events when the job should get run and fetches the
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`.groovy` file from the git repository/branch
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- `containerized-tests.groovy` is the [Jenkins Pipeline][pipeline] that
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contains the stages for the Jenkins Job itself. In order to work with [the
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bare-metal machines from the CentOS CI][centos_ci_hw], it executes the
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following stages:
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1. dynamically allocate a Jenkins Slave (`node('cico-workspace')`) with tools
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and configuration to request a bare-metal machine
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1. checkout the `centos/ci` branch of the repository, which contains scripts
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for provisioning and preparing the environment for running tests
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1. reserve a bare-metal machine with `cico` (configured on the Jenkins Slave)
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1. provision the reserved bare-metal machine with additional tools and
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dependencies to run the test (see `prepare.sh` below)
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1. run `make containerized-tests` and `make containerized-build` in parallel
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1. as final step, return the bare-metal machine to the CentOS CI for other
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users (it will be re-installed with a minimal CentOS environment again)
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- `prepare.sh` installs dependencies for the test, and checks out the git
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repository and branch (or Pull Request) that contains the commits to be
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tested (and the test itself)
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## Deploying the Jenkins Jobs
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The Jenkins Jobs are described in Jenkins Job Builder configuration files and
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Jenkins Pipelines. These need to be imported in the Jenkins instance before
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they can be run. Importing is done with the `jenkins-jobs` command, which runs
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in a `jjb` container. To build the container, and provide the configuration for
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Jenkins Job Builder, see the [documentation in the `deploy/`
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directory](deploy/README.md).
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[ceph_csi_ci]: https://jenkins-ceph-csi.apps.ocp.ci.centos.org
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[app_ci_centos_org]: https://console-openshift-console.apps.ocp.ci.centos.org/k8s/cluster/projects/ceph-csi
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[jjb]: https://jenkins-job-builder.readthedocs.io/en/latest/index.html
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[pipeline]: https://docs.openstack.org/infra/jenkins-job-builder/project_pipeline.html
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[centos_ci_hw]: https://wiki.centos.org/QaWiki/PubHardware
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