From 6a63e9cd88c2e50c20fd4df830604f49a55f119a Mon Sep 17 00:00:00 2001
From: Paolo Asperti <paolo@asperti.com>
Date: Wed, 19 Oct 2022 22:44:42 +0200
Subject: [PATCH] don't update crontab file if ENV missing

---
 docker/entrypoint.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/docker/entrypoint.sh b/docker/entrypoint.sh
index cc337f0..b123623 100755
--- a/docker/entrypoint.sh
+++ b/docker/entrypoint.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
 
-echo "${CRONTAB}" > /crontabs/root
+if [ ! -z "${CRONTAB}" ] ; then
+    echo "${CRONTAB}" > /crontabs/roota
+fi
 
 /usr/sbin/crond -f -d8 -L /var/log/cron.log -c /crontabs