Add restore site task & restructure job templates

Partial https://gitlab.cern.ch/webservices/webframeworks-planning/-/issues/240

chart/cluster-tasks/templates/clear-cache.yaml

@@ -10,11 +10,10 @@ spec:
     - name: namespace
       type: string
       description: The namespace of the drupal site
-  workspaces:
-    - name: job
   steps:
     - name: clear-cache
-      image: {{ .Values.openshiftCli.image }}
+      image: {{ .Values.image }}
+      imagePullPolicy: Always
       command:
         - /bin/sh
         - '-c'
@@ -22,11 +21,13 @@ spec:
       - |-
         echo "--------------------------- Clear cache ---------------------------"
         echo "Drupal site name: $(params.drupalSite)"
-        export TASK=clear-cache
+        export DATE=$(date +%F-%H-%M)
+        export TASK=clear-cache-$DATE
+        export OPERATION="clear-cache"
         export DRUPALSITE=$(params.drupalSite)
         export NAMESPACE=$(params.namespace)
         export SERVING_POD_IMAGE=$(oc get -n $(params.namespace) drupalsite/$(params.drupalSite) -o=jsonpath='{.status.servingPodImage}')
-        envsubst < $(workspaces.job.path)/{{ .Values.jobTemplateFile }} | oc create -n $(params.namespace) -f -
+        envsubst < /tekton-task-templates/drupal_operation_job.yaml | oc create -n $(params.namespace) -f -
         oc wait --for=condition=complete job/$TASK-$(params.drupalSite)
         jobStatus=$(oc get job/$TASK-$(params.drupalSite) -o=jsonpath='{.status.conditions[*].type}' | grep -i -E 'failed|complete' || echo "Failed")
         echo "Job status: $jobStatus"