diff --git a/olasd/azure/create-vm.sh b/olasd/azure/create-vm.sh
old mode 100644
new mode 100755
index 9d175a9..0ef75f3
--- a/olasd/azure/create-vm.sh
+++ b/olasd/azure/create-vm.sh
@@ -1,36 +1,34 @@
 #!/bin/sh
 
-worker=worker01
-
+worker=${1-worker01}
 zone=westeurope
 resource_prefix=euwest
 resource_group="${resource_prefix}-workers"
-
 image=credativ:Debian:8:latest
+# pub_key=~/.ssh/id-rsa-swhworker.pub
+pub_key=~/.ssh/id_rsa.inria.pub
 
 # "default" subnet in the "swh-vnet" virtual network of the "swh-resource" resource group
 subnet=/subscriptions/49b7f681-8efc-4689-8524-870fc0c1db09/resourceGroups/swh-resource/providers/Microsoft.Network/virtualNetworks/swh-vnet/subnets/default
 
 # Change for virtual machine size. Standard_DS = SSD; Standard_S = Standard disk
-size=Standard_DS11_v2
-# size=Standard_D11_v2
+# size=Standard_DS11_v2
+size=Standard_DS2_v2
 
 # SSD
 disk_group="${resource_prefix}workersdisks"
 # Standard
 # disk_group="${resource_prefix}stddisks"
 
 diagnostics_resource=swhresourcediag966
 
-
-
 azure vm create \
       -g "${resource_group}" \
       -n "${worker}-${resource_prefix}" \
       -l "${zone}" \
       -y Linux -Q "${image}" \
       -S "${subnet}" -f "${worker}-${resource_prefix}-if" \
-      -u testadmin -M ~/.ssh/id_rsa.inria.pub \
+      -u testadmin -M "${pub_key}" \
       -o "${disk_group}" \
       -z "${size}" \
       --boot-diagnostics-storage-uri "http://${diagnostics_resource}.blob.core.windows.net/"