Refactor volume ID retrieval for production environment

Changed the method of retrieving volume IDs for the production environment in the script. 

.gitlab-ci.yml

@@ -41,8 +41,9 @@ prep-deploy:
            openstack volume create --snapshot xdmod-staging-vol-snapshot --size 150 $TF_VAR_data_volume
       elif [ "$TARGET_ENV" = "production" ]; then
            export prod_instance_id=$(openstack floating ip show $prod_floating_ip -c port_details -f value | awk -F', ' '{print $2}' | awk -F"'" '{print $2}')
-           export prod_volume=$(openstack server show $prod_instance_id -c volumes_attached -f value | awk -F"'" '{print $4}')
-           export prod_queue_volume=$(openstack server show $prod_instance_id -c volumes_attached -f value | awk -F"'" '{print $4}' | awk 'NR==2')
+           export volume_ids=$(openstack server show $prod_instance_id -c volumes_attached | grep -o "id='[a-zA-Z0-9\-]*'" | awk -F "'" '{print $2}')
+           export prod_volume=$(echo "$volume_ids" | awk 'NR==1')
+           export prod_queue_volume=$(echo "$volume_ids" | awk 'NR==2')
 
            echo "Detaching prod_volume=${prod_volume} from prod_instance_id=${prod_instance_id} and creating a snapshot"
            echo "Detaching prod_queue_volume=${prod_queue_volume} from prod_instance_id=${prod_instance_id} and creating a snapshot"