Switches from cron to systemd

templates/certbot-renew.service.j2

@@ -0,0 +1,9 @@
+[Unit]
+Description=Let's Encrypt renewal
+
+[Service]
+User={{ certbot_auto_renew_user }}
+Type=oneshot
+ExecStart={{ certbot_script }} renew --quiet --agree-tos
+
+ExecStartPost=/bin/systemctl reload {{ certbot_web_service }}.service

templates/certbot-renew.timer.j2

@@ -0,0 +1,9 @@
+[Unit]
+Description=Periodically check for Let's Encrypt's certificates renewal
+
+[Timer]
+OnCalendar=*-*-* {{ certbot_auto_renew_hour }}:{{ certbot_auto_renew_minute }}:00
+Persistent=true
+
+[Install]
+WantedBy=timers.target