ci: set scale down in deployment

Author: davidnixon

.github/workflows/ibmcloud-codeengine.yml

@@ -53,12 +53,13 @@ jobs:
         env:
           CE_PROJECT: ${{ vars.CE_PROJECT }}
           CE_APP_NAME: ${{ vars.CE_APP_NAME }}
+          CE_SCALE_DOWN_DELAY: ${{ vars.CE_SCALE_DOWN_DELAY }}
           CR_IMAGE: ${{ vars.CR_IMAGE }}
         run: |
           IMAGE_TAG=$(date '+%FT%H%M%S')
           docker build -t ${CR_IMAGE}:$IMAGE_TAG .
           docker push ${CR_IMAGE}:$IMAGE_TAG
           ibmcloud ce project select --name ${CE_PROJECT}
           ibmcloud ce app logs --tail 5 --follow --name ${CE_APP_NAME} &
-          ibmcloud ce app update --image private.${CR_IMAGE}:$IMAGE_TAG --name ${CE_APP_NAME}
+          ibmcloud ce app update --image private.${CR_IMAGE}:$IMAGE_TAG --scale-down-delay ${CE_SCALE_DOWN_DELAY} --name ${CE_APP_NAME}