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@@ -34,7 +34,7 @@
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### Jenkins
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We provide a Jenkins template that can be provisioned for you automatically. It's using the jenkins image from openshift catalog but we modified it with some extra parameters : Deployed jenkins will be able to launch ephemeral pods as jenkins executor (nothing should run on the jenkins pod itself)
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- For that you need to configure your job to use the `cico-workspace` label, as that will be automatically trigger a pod deployment in openshift from a template (cico-worspace)
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+ For that you need to configure your job to use the `cico-workspace` label, as that will be automatically trigger a pod deployment in openshift from a template (cico-workspace)
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That environment pod is using a centos 8-stream based container, that will automatically connect to jenkins as "agent" and also contains the following tools :
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* git
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@@ -191,3 +191,33 @@
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!!! warning
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We'll implement some rotation to clean-up used space on that machine on regular basis, so don't expect pushed files to remain available forever !
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+
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+ ## Migration to new CI instance
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+
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+ In case you want to migrate your old jenkins configuration to new CI instance follow this guide.
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+
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+ 1. Login to [old openshift instance](https://oauth-openshift.apps.ocp.ci.centos.org/)
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+ 2. Click at your username in upper right corner and select `Copy login command`
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+ 3. Use [oc](https://console-openshift-console.apps.ocp.ci.centos.org/command-line-tools) tool to login
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+ 4. Switch to correct project `oc project <project_name>` (you should already be on correct project, but it's better to check)
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+ 5. Copy the old configuration to your machine `oc rsync <pod_name>:/var/lib/jenkins/jobs <target_directory>`
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+
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+ !!! note
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+ Usually you want to only migrate jobs, but if you need any other configuration file, just
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+ do `oc rsh <pod_name>` and look inside `/var/lib/jenkins` for all configuration files.
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+ Just be aware that some of the files could contain IP or hostname that will no longer work
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+ in new CI instance.
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+
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+ 6. Login to [new openshift instance](https://console-openshift-console.apps.ocp.cloud.ci.centos.org/)
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+ 7. Click at your username in upper right corner and select `Copy login command`
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+ 8. Use [oc](https://console-openshift-console.apps.ocp.ci.centos.org/command-line-tools) tool to login
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+ 9. Switch to correct project `oc project <project_name>` (you should already be on correct project, but it's better to check)
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+ 10. Copy the configuration files from your machine to openshift pod `oc rsync jobs <pod_name>:/var/lib/jenkins`
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+ 11. Login to new Jenkins instance (the URL should be `https://jenkins-<project_name>.apps.ocp.cloud.ci.centos.org`)
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+ 12. In the `Manage Jenkins` page click on `Reload Configuration from Disk`
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+
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+ Now you should have your old configuration available in new Jenkins instance.
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+
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+ !!! warning
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+ This migration doesn't migrate any credentials from the old Jenkins instance. Those needs to be
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+ migrated manually, because those are not stored in `/var/lib/jenkins`.
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zlopez
commented a year ago
This commit adds migration guide from the current Jenkins Openshift instance to
new one.
As a bonus it fixes a small typo in CI Guide. :-)
Signed-off-by: Michal Konečný mkonecny@redhat.com