From 4a7410ab9e5c0bcc38b6114306c103f9e768a7a3 Mon Sep 17 00:00:00 2001
From: Jens Glad Balchen <balchen@utviklerne.no>
Date: Thu, 21 Jul 2022 00:18:25 +0200
Subject: [PATCH] Use tile expiration settings from env if set, or default
 values as before.

---
 openstreetmap-tiles-update-expire.sh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/openstreetmap-tiles-update-expire.sh b/openstreetmap-tiles-update-expire.sh
index 970a68d..e4a3fe7 100755
--- a/openstreetmap-tiles-update-expire.sh
+++ b/openstreetmap-tiles-update-expire.sh
@@ -56,10 +56,10 @@ RUNLOG=$LOG_DIR/run.log
 # Here we expire (but don't immediately rerender) tiles between zoom levels
 # 13 and 18 and delete between 19 and 20.
 #------------------------------------------------------------------------------
-EXPIRY_MINZOOM=13
-EXPIRY_TOUCHFROM=13
-EXPIRY_DELETEFROM=19
-EXPIRY_MAXZOOM=20
+EXPIRY_MINZOOM=${EXPIRY_MINZOOM:="13}
+EXPIRY_TOUCHFROM=${EXPIRY_TOUCHFROM:="13"}
+EXPIRY_DELETEFROM=${EXPIRY_DELETEFROM:="19"}
+EXPIRY_MAXZOOM=${EXPIRY_MAXZOOM:="20"}
 
 
 REPLICATION_URL=${REPLICATION_URL:="https://planet.openstreetmap.org/replication/hour/"}