Ubuntu 16.04
/etc/systemd/system/certbot.service
[Unit]
Description=Let's Encrypt renewal
[Service]
Type=oneshot
ExecStart=/usr/bin/certbot renew --quiet --agree-tos
Ubuntu 16.04
/etc/systemd/system/certbot.service
[Unit]
Description=Let's Encrypt renewal
[Service]
Type=oneshot
ExecStart=/usr/bin/certbot renew --quiet --agree-tos
ACTION=="change", SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="[01]", RUN+="power %E{POWER_SUPPLY_ONLINE}" |