fixed syntax

.gitlab-ci.yml

@@ -59,16 +59,16 @@ deploy_ood_proxy_node:
 
     - |
       PROXY_INSTANCE_ID=$(openstack server create \
-        --image $PKR_VAR_source_image \
-        --flavor $PKR_VAR_flavor \
-        --network $OOD_PROXY_NETWORK \
-        --security-group ood-https-ports
-        --security-group allow-ssh
-        --user-data user_data.txt
+        --image "$PKR_VAR_source_image" \
+        --flavor "$PKR_VAR_flavor" \
+        --network "$OOD_PROXY_NETWORK" \
+        --security-group ood-https-ports \
+        --security-group allow-ssh \
+        --user-data user_data.txt \
         --wait \
         --format value \
         --column id \
-        $OOD_PROXY_NAME)
+        "$OOD_PROXY_NAME")
 
       
       echo "Created PROXY_INSTANCE_ID: $PROXY_INSTANCE_ID"