Fix crontab permissions

Dockerfile

@@ -23,7 +23,7 @@ RUN chmod 0644 /etc/cron.d/cronjob
 RUN crontab /etc/cron.d/cronjob
 
 # Create the log file to be able to run tail
-RUN touch /var/log/cron.log
+RUN touch /var/log/cron_python.log
 
 # Run the command on container startup
 CMD ["cron","-f" ]