Exposed backoffLimit and restartPolicy in chart values

This change allows the restartPolicy of the tempest test pod to be set
to Never, bringing it in line with other test pod behavior, like rally.
If set to OnFailure, test pods are often deleted before logs can be
viewed.

Change-Id: I312b93784d27109452b2076658e5655210a92b48

tempest/templates/job-run-tests.yaml

@@ -28,13 +28,14 @@ metadata:
   annotations:
     {{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" }}
 spec:
+  backoffLimit: {{ .Values.jobs.run_tests.backoffLimit }}
   template:
     metadata:
       labels:
 {{ tuple $envAll "tempest" "run-tests" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
     spec:
       serviceAccountName: {{ $serviceAccountName }}
-      restartPolicy: OnFailure
+      restartPolicy: {{ .Values.jobs.run_tests.restartPolicy }}
       nodeSelector:
         {{ .Values.labels.job.node_selector_key }}: {{ .Values.labels.job.node_selector_value }}
       initContainers:

tempest/values.yaml

@@ -35,6 +35,11 @@ images:
       - dep_check
       - image_repo_sync
 
+jobs:
+  run_tests:
+    backoffLimit: 6
+    restartPolicy: OnFailure
+
 pod:
   user:
     tempest: