- add jessie-backports to sources.list https://backports.debian.org/Instructions/
- apt-get update
- apt-get install letsencrypt -t jessie-backports says letsencrypt : Depends: python-letsencrypt (= 0.5.0-1~bpo8+1) but it is not going to be installed
- digress from official method, do apt-get install letsencrypt python-letsencrypt -t jessie-backports says python-letsencrypt : Depends: python-acme (>= 0.5.0) but it is not going to be installed
- do apt-get install letsencrypt python-letsencrypt python-acme -t jessie-backports says python-acme : Breaks: python-letsencrypt (< 0.6.0) but 0.5.0-1~bpo8+1 is to be installed
- wget https://dl.eff.org/certbot-auto
- chmod a+x certbot-auto
- nginx -s stop
- ./certbot-auto certonly --standalone -d indicproject.org -d www.indicproject.org -d discourse.indicproject.org
- service nginx start
- systemd job as in https://www.shivering-isles.com/lets-encrypt-renew-all-your-certs-using-systemd/