diff --git a/azure/add-disk.sh b/azure/add-disk.sh
new file mode 100755
index 0000000..b6c790d
--- /dev/null
+++ b/azure/add-disk.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+# This script is used to attach data disk
+# to for example node destined to be postgres replica
+
+# node's name defined by the user
+nodename=${1-"dbreplica1"}
+
+# type of node (worker, db, etc...)
+type=${2-"db"}
+
+# resource group
+resource_group="euwest-${type}"
+
+# not a choice
+location=westeurope
+
+# disk's size in gb
+disk_size=${3-1024}
+
+# disk's name derivative from the vm we attach it too
+disk_name="${nodename}_pgdata0"
+
+# actually attach the disk
+# this will create the disk if it does not exist
+cmd="az vm disk attach \
+   --resource-group ${resource_group} \
+   --vm-name ${nodename} \
+   --disk ${disk_name} \
+   --size-gb ${disk_size} \
+   --new"
+
+echo $cmd
+$cmd