fix: Asm overlay path (terraform-google-modules#921)

* use absolute path for overlay files similar to service account key file

* fix for multiple files

* fix for multiple files

* fix for multiple files

* fix for multiple files

* fix for multiple files

* fix for none

Co-authored-by: Bharath KKB <[email protected]>

Author: Pega88

modules/asm/scripts/install_asm.sh

@@ -79,7 +79,11 @@ item="${OPTIONS[*]}";OPTIONS_COMMAND=$(echo "--option" "${item// / --option }")
 echo -e "OPTIONS_COMMAND is $OPTIONS_COMMAND"
 echo -e "CUSTOM_OVERLAYS array length is ${#CUSTOM_OVERLAYS[@]}"
 # Create custom_overlays command snippet
-item="${CUSTOM_OVERLAYS[*]}";CUSTOM_OVERLAYS_COMMAND=$(echo "--custom_overlay" "${item// / --custom_overlay }")
+if [[ "${CUSTOM_OVERLAYS[*]}" == "none" ]]; then
+    CUSTOM_OVERLAYS_COMMAND="--custom_overlay none"
+else
+    item="${CUSTOM_OVERLAYS[*]}";CUSTOM_OVERLAYS_COMMAND=$(echo "--custom_overlay" "$(pwd)/${item// / --custom_overlay $(pwd)/}")
+fi
 echo -e "CUSTOM_OVERLAYS_COMMAND is $CUSTOM_OVERLAYS_COMMAND"
 echo -e "ENABLE_ALL is $ENABLE_ALL"
 echo -e "ENABLE_CLUSTER_ROLES is $ENABLE_CLUSTER_ROLES"