diff --git a/cron_job.sh b/cron_job.sh
new file mode 100644
index 0000000..589f3ab
--- /dev/null
+++ b/cron_job.sh
@@ -0,0 +1,12 @@
+# Cleanup exited docker containers
+EXITED_CONTAINERS=$(docker ps -a | grep Exited | awk '{ print $1 }')
+if [ -z "$EXITED_CONTAINERS" ]
+then
+    echo "No exited containers to clean"
+else
+    docker rm $EXITED_CONTAINERS
+fi
+ 
+# renew certbot certificate
+docker compose run --rm certbot
+docker compose exec nginx nginx -s reload