Synchronizes OpenShift BuildConfig objects as Jenkins jobs and synchronizes job status into OpenShift Build objects
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README.md

openshift-jenkins-sync-plugin

This Jenkins plugin keeps OpenShift BuildConfig and Build objects in sync with Jenkins Jobs and Builds.

The synchronization works like this

  • changes to OpenShift BuildConfig resources for Jenkins pipeline builds result in updates to the Jenkins Job of the same name; any BuildConfig source secrets are converted into Jenkins Credentials and registered with the Jenkins Credentials Plugin.
  • creating a new OpenShift Build for a BuildConfig associated with a Jenkins Job results in the Jenkins Job being triggered
  • changes in a Jenkins Build Run thats associated with a Jenkins Job gets replicated to an OpenShift Build object (which is created if necessary if the build was triggered via Jenkins)
  • changes in OpenShift ConfigMap resources are examined for XML documents that correspond to Pod Template configuration for the Kubernetes Cloud plugin at http://github.com/jenkinsci/kubernetes-plugin and change the configuration of the Kubernetes Cloud plugin running in Jenkins to add, edit, or remove Pod Templates based on what exists in the ConfigMap; also note, if the setting of the Pod Template starts with "imagestreamtag:", then this plugin will look up the ImageStreamTag for that entry (stripping "imagestreamtag:" first) and if found, replace the entry with the ImageStreamTag's Docker image reference.
  • changes to OpenShift ImageStream resources with the label "role" set to "jenkins-slave" and ImageStreamTag resources with the annotation "role" set to "jenkins-slave" are considered images to used with Pod Templates for the Kubernetes Cloud plugin, where the Pod Templates are added, modified, or deleted from the Kubernetes cloud plugin as corresponding ImageStreams and ImageStreamTags are added, modified, or deleted, or have the "role=jenkins-slave" setting changed.
  • changes to OpenShift Secrets with the label "credential.sync.jenkins.openshift.io" set to "true" will result in those Secrets getting coverted into Jenkins Credentials that are registered with the Jenkins Credentials Plugin. Mappings occur as follows:
    • "kubernetes.io/basic-auth" map to Jenkins Username / Password credentials
    • "kubernetes.io/ssh-auth" map to Jenkins SSH User credentials
    • Opaque/generic secrets where the data has a "username" key and a "password" key map to Jenkins Username / Password credentials
    • Opaque/generic secrets where the data has a "ssh-privatekey" map to Jenkins SSH User credentials
    • Opaque/generic secrets where the data has a "secrettext" key map to Jenkins Secret Text credentials
  • For a Jenkins Secret File credential, the opaque/generic secret requires the 'filename' attribute. See the example below:
# Create the secret
oc create secret generic mysecretfile --from-file=filename=mysecret.txt
# Add label to mark that it should be synced.
oc label secret mysecretfile credential.sync.jenkins.openshift.io=true
// the credential will be created by the plugin with the name '<namespace>-<secretname>'
withCredentials([file(credentialsId: 'namespace-mysecretfile', variable: 'MYFILE')]) {
 sh '''
   #!/bin/bash
   cp ${MYFILE} newsecretfile.txt
 '''
}
  • For a Jenkins Certificate credential, the opaque/generic secret requires the 'certificate' and 'password' attributes. See the example below:
# Create the secret
oc create secret generic mycert --from-file=certificate=mycert.p12 --from-literal=password=password
# Add label to mark that it should be synced.
oc label secret mysecretfile credential.sync.jenkins.openshift.io=true

Development Instructions

  • Build and run the unit tests Execute mvn clean install

  • Install the plugin into a locally-running Jenkins Execute mvn hpi:run Navigate in brower to http://localhost:8080/jenkins

Synchronization Polling Frequencies

  • Jenkins Run to OpenShift Build Sync: 5 seconds BuildSyncRunListener

  • OpenShift Resource Relist (backup for missed Watch events): 5 minutes BaseWatcher

    • Each of the API Object Relist intervals are now configurable from the "Manage Jenkins" -> "Configure System" section for this plugin

Other configuration

  • By default, the project running Jenkins is monitored, but additional projects can be monitored by adding them to the Namespace list in the "Manage Jenkins" -> "Configure System" section for this plugin. NOTE: the service account associated with the Jenkins deployment must have the edit role for each project monitored
  • By default, a Jenkins folder will be created for each project monitored when any Pipeline Strategy build configs are created. This behavior can be turned off from the "Manage Jenkins" -> "Configure System" section for this plugin. If turned off, the Jenkins job will not be placed in a folder, and the name will be a combination of the project and build config name.

Restrictions

  • With respect to Jenkins Pipelines, pipeline writers will not be able to fully leverage the build pipeline step to start a OpenShift Pipeline Strategy build from the Jenksinfile of another OpenShift Pipeline Stragetgy build. The "child" Pipeline Strategy builds will start, but the status cannot be properly captured and the "parent" Pipeline Strategy build fails.
  • Do not run multiple jenkins instances running the sync plugin and monitoring the same namespace(s). There is no coordination between multiple instances of this plugin monitoring the same namespace. Unpredictable results, such as duplicate, concurrent attempts at initiating OpenShift Pipeline Strategy Builds or initiating Jenkins Job runs that correspond to OpenShift Pipeline Strategy Builds, can result.