Install certbot.
wget https://dl.eff.org/certbot-auto
chmod +x certbot-auto
./certbot-auto
Request a certificate using manual authentication.
./certbot-auto certonly --manual
And then enter the email for the certificate owner.
[](img/email address.jpg)
Accept Let’s Encrypt Terms of Service
Specify the Domain Names
ACME Challenge Details
Using this information we set a config variable on Heroku:





