in production, run db:migrate, in all other environments, run db:setup

.ebextensions/rails.config

@@ -11,8 +11,12 @@ files:
 
       cd $(/opt/elasticbeanstalk/bin/get-config container -k app_deploy_dir)
 
-      if [ "$EB_ENVIRONMENT" != "move-mil-prod" ]
+      if [ "$EB_ENVIRONMENT" == "move-mil-prod" ]
       then
+        # In production, ensure that DB migrations run because this might be a new version of the app that requires it, but do not blow the DB away and re-seed
+        su -s /bin/bash -c 'DISABLE_DATABASE_ENVIRONMENT_CHECK=1 bin/rails db:migrate' $(/opt/elasticbeanstalk/bin/get-config container -k app_user)
+      else
+        # In all other environments, for simplicity and ease of development, just blow the DB away and re-seed
         su -s /bin/bash -c 'DISABLE_DATABASE_ENVIRONMENT_CHECK=1 bin/rails db:setup' $(/opt/elasticbeanstalk/bin/get-config container -k app_user)
       fi