feat(clowder): allow dual-use of image from registry_img and image

deploy/clowdapp.yaml

@@ -54,7 +54,7 @@ objects:
       schedule: ${IMPORT_SSG_SCHEDULE}
       concurrencyPolicy: Forbid
       podSpec:
-        image: ${IMAGE}:${IMAGE_TAG}
+        image: "${DEPLOY}"
         initContainers:
         - command: ["/bin/sh"]
           args: ["-c", "$HOME/scripts/abort_if_pending_migrations.sh"]
@@ -139,7 +139,7 @@ objects:
           enabled: true
           apiPath: compliance
       podSpec:
-        image: ${IMAGE}:${IMAGE_TAG}
+        image: ${DEPLOY}
         initContainers:
         - command: ["/bin/sh"]
           args: ["-c", "$HOME/scripts/check_migration_status_and_ssg_synced.sh"]
@@ -495,6 +495,10 @@ parameters:
   description: Image name
   value: quay.io/redhat-services-prod/insights-management-tenant/insights-compliance/compliance-backend
 - name: IMAGE_DIGEST
+- name: REGISTRY_IMG
+- name: DEPLOY
+  generate: expression
+  from: '[ "{{ if ne .REGISTRY_IMG \"\" }}{{ .REGISTRY_IMG }}@{{ .IMAGE_DIGEST }}{{ else }}{{ .IMAGE }}:{{ .IMAGE_TAG }}{{ end }}" ]'
 - name: ENV_NAME
   description: ClowdEnv Name
 - name: REPLICAS_BACKEND