diff --git a/resources/get-fileshare-signed-url.sh b/resources/get-fileshare-signed-url.sh
index d3ca03c0..feba58c0 100755
--- a/resources/get-fileshare-signed-url.sh
+++ b/resources/get-fileshare-signed-url.sh
@@ -29,6 +29,11 @@ set +x
 
 : "${STORAGE_FILESHARE?}" "${STORAGE_NAME?}" "${STORAGE_DURATION_IN_MINUTE?}" "${STORAGE_PERMISSIONS?}"
 
+# Ensure the script is re-entrant by using unique temporary `az` configuration directory for each call
+# Ref. https://learn.microsoft.com/en-us/cli/azure/use-azure-cli-successfully?tabs=bash%2Cbash2#concurrent-execution
+AZURE_CONFIG_DIR="$(mktemp -d)"
+export AZURE_CONFIG_DIR
+
 accountKeyArg=()
 shouldLogout="true"
 # If a storage account key env var exists, use it instead of a service principal to generate a file share SAS token