improve handling of cronjob volumes

{{cookiecutter.project_slug}}/templates/{{cookiecutter.template_base_name}}/helpers/cronjobs/_spec.tpl

@@ -31,6 +31,20 @@ jobTemplate:
       metadata:
         labels:
           parent: {%raw %}{{ .name | quote }}{% endraw %}
+        annotations:
+          {%- if cookiecutter.__include_volume != 'no' %}
+          {%- raw %}
+          {{- $excludedVolumes := dict "volumes" list }}
+          {{- range $name, $options := .volumes }}
+          {{- if or $options.projected $options.excludeFromBackup }}
+          {{- $_ := set $excludedVolumes "volumes" (append $excludedVolumes.volumes $name) }}
+          {{- end }}
+          {{- end }}
+          {{- if $excludedVolumes.volumes }}
+          backup.velero.io/backup-volumes-excludes: {{ join "," $excludedVolumes.volumes | quote }}
+          {{- end }}
+          {%- endraw %}
+          {%- endif %}
       spec:
         {%- if cookiecutter.__include_volume != 'no' %}
         affinity:
@@ -68,8 +82,12 @@ jobTemplate:
         {%- raw %}
         {{- range $name, $options := .volumes }}
           - name: {{ $name | quote }}
+            {{- if $options.projected }}
+            projected: {{ toYaml $options.projected | nindent 8 }}
+            {{- else }}
             persistentVolumeClaim:
               claimName: {{ $name | quote }}
+            {{- end }}
         {{- end }}
         {%- endraw %}
         {%- endif %}