fix(get-fileshare-signed-url) ensure the script is re-entrant to allo…

…w concurent calls (#854)

* fix(get-fileshare-signed-url) ensure the script is re-entrant to allow concurent calls

Signed-off-by: Damien Duportal <damien.duportal@gmail.com>

* Update resources/get-fileshare-signed-url.sh

Co-authored-by: Hervé Le Meur <91831478+lemeurherve@users.noreply.github.com>

---------

Signed-off-by: Damien Duportal <damien.duportal@gmail.com>
Co-authored-by: Hervé Le Meur <91831478+lemeurherve@users.noreply.github.com>

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