diff --git a/azure/resize-disk.sh b/azure/resize-disk.sh
new file mode 100755
index 0000000..d6eebc5
--- /dev/null
+++ b/azure/resize-disk.sh
@@ -0,0 +1,36 @@
+# 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=${1-"dbreplica1"}
+
+# type
+type=${2-"db"}
+
+# resource group
+resource_group="euwest-${type}"
+
+# not a choice
+location=westeurope
+
+# disk's size in gb
+disk_size=${3-2048}
+
+# type of node (worker, db, etc...)
+disk_name="${nodename}_pgdata0"
+
+# deallocate the vm (stop, deallocate)
+cmd="az vm deallocate \
+    --resource-group ${resource_group} \
+    --name ${nodename}"
+echo $cmd
+$cmd
+
+# update the disk
+cmd="az disk update \
+   --resource-group ${resource_group} \
+   --name ${disk_name} \
+   --size-gb ${disk_size}"
+
+echo $cmd
+$cmd