4.7. Adding Triggers to a Pipeline

Procedure

1. Copy the content of the following sample TriggerBinding YAML file and save it:

   apiVersion: triggers.tekton.dev/v1alpha1
   kind: TriggerBinding
   metadata:
     name: vote-app
   spec:
     params:
     - name: git-repo-url
       value: $(body.repository.url)
     - name: git-repo-name
       value: $(body.repository.name)
     - name: git-revision
       value: $(body.head_commit.id)

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2. Create the TriggerBinding:

   $ oc create -f <triggerbinding-yaml-file-name.yaml>

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   Alternatively, you can create the TriggerBinding directly from the pipelines-tutorial Git repository:

   $ oc create -f https://raw.githubusercontent.com/openshift/pipelines-tutorial/release-tech-preview-2/03_triggers/01_binding.yaml

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3. Copy the content of the following sample TriggerTemplate YAML file and save it:

   apiVersion: triggers.tekton.dev/v1alpha1
   kind: TriggerTemplate
   metadata:
     name: vote-app
   spec:
     params:
     - name: git-repo-url
       description: The git repository url
     - name: git-revision
       description: The git revision
       default: release-tech-preview-2
     - name: git-repo-name
       description: The name of the deployment to be created / patched
   
     resourcetemplates:
     - apiVersion: tekton.dev/v1beta1
       kind: PipelineRun
       metadata:
         name: build-deploy-$(params.git-repo-name)-$(uid)
       spec:
         serviceAccountName: pipeline
         pipelineRef:
           name: build-and-deploy
         params:
         - name: deployment-name
           value: $(tt.params.git-repo-name)
         - name: git-url
           value: $(tt.params.git-repo-url)
         - name: git-revision
           value: $(tt.params.git-revision)
         - name: IMAGE
           value: image-registry.openshift-image-registry.svc:5000/pipelines-tutorial/$(tt.params.git-repo-name)
         workspaces:
         - name: shared-workspace
           persistentvolumeclaim:
             claimName: source-pvc

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4. Create the TriggerTemplate:

   $ oc create -f <triggertemplate-yaml-file-name.yaml>

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   Alternatively, you can create the TriggerTemplate directly from the pipelines-tutorial Git repository:

   $ oc create -f https://raw.githubusercontent.com/openshift/pipelines-tutorial/release-tech-preview-2/03_triggers/02_template.yaml

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5. Copy the contents of the following sample EventListener YAML file and save it:

   apiVersion: triggers.tekton.dev/v1alpha1
   kind: EventListener
   metadata:
     name: vote-app
   spec:
     serviceAccountName: pipeline
     triggers:
     - bindings:
       - ref: vote-app
       template:
         name: vote-app

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6. Create the EventListener:

   $ oc create -f <eventlistener-yaml-file-name.yaml>

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   Alternatively, you can create the EvenListener directly from the pipelines-tutorial Git repository:

   $ oc create -f https://raw.githubusercontent.com/openshift/pipelines-tutorial/release-tech-preview-2/03_triggers/03_event_listener.yaml

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7. Expose the EventListener service as an OpenShift Container Platform route to make it publicly accessible:

   $ oc expose svc el-vote-app

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