Fix docker entrypoint

Author: esoterik

docker/entrypoint.sh

@@ -10,7 +10,9 @@ if [ "$TEST_DB_AUTO_MIGRATE" == "true" ]; then
 fi
 
 # host ip needed by application for better_errors whitelisting to work
-export HOST_IP=`/sbin/ip route|awk '/default/ { print $3 }'`
+if [ "$RAILS_ENV" == "development" ]; then
+  export HOST_IP=`/sbin/ip route|awk '/default/ { print $3 }'`
+fi
 
 printenv | sed "s/^\([[:alnum:]_]*\)=\(.*\)$/export \1='\2'/" >/var/www/.profile