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47 lines
2.4 KiB
Markdown
47 lines
2.4 KiB
Markdown
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# Deploying Jenkins Jobs through OpenShift
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This `deploy/` directory contains the configuration to prepare running Jenkins
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Job Builder on OpenShift and update/add Jenkins Jobs in an environment hosted
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in the same OpenShift project.
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The used Jenkins environment is expected to be deployed already. This is done
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by the CentOS CI team when a [request for CI resources](ci_request) is handled.
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The deploying and configuration of Jenkins is therefor not part of this
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document.
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## Building the Jenkins Job Builder container image
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OpenShift has a feature called ImageStreams. This can be used to build the
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container image that contains the `jenkins-jobs` executable to test and
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update/add jobs in a Jenkins environment.
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All `.yaml` files in this directory need to be pushed into OpenShift, use `oc
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create -f <file>` for that.
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- the `Dockerfile` uses `pip` to install `jenkins-jobs`, the BuildConfig object
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in OpenShift can then be used to build the image
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- `checkout-repo.sh` will be included in the container image, and checks out
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the `ci/centos` branch of the repository
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- together with the `Makefile` (checked out with `checkout-repo.sh`), the
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Jenkins Jobs can be validated or deployed
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- `jjb-buildconfig.yaml` creates the ImageStream and the BuildConfig objects.
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Once created with `oc create`, the OpenShift Console shows a `Build` button
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for the `jjb` image under the Builds/Builds menu
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- `jjb-config.yaml` is the `/etc/jenkins_jobs/jenkins_jobs.ini` configuration
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files that contains username, password/token and URL to the Jenkins instance
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(**edit this file before pushing to OpenShift**)
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- `jjb-validate.yaml` is the OpenShift Job that creates a Pod, runs the
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validation test and exits. The job needs to be deleted from OpenShift before
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it can be run again.
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- `jjb-deploy.yaml` is the OpenShift Job that creates a Pod, runs
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`jenkins-jobs` to push the new jobs to the Jenkins environment. This pod uses
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the jjb-config ConfigMap to connect and login to the Jenkins instance. The
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job needs to be deleted from OpenShift before it can be run again.
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- `jjb.sh` is a helper script that can be used to validate/deploy the Jenkins
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Jobs in the parent directory. It creates the validate or deploy job, waits
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until the job finishes, shows the log and exits with 0 on success. This
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script can be used in Jenkins Jobs to automate the validation and deployment of
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jobs.
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[ci_request]: https://wiki.centos.org/QaWiki/CI/GettingStarted
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