I’m in the middle of migrating my home services from docker on NixOS to a private Joyent Triton deployment.
While doing this my certificates expired. A few years ago I settled on using Google’s acme client, but it has not been updated to Let’s Encrypt v2 API. So I looked back on certbot and, to my surprise, it has two great additions:
- Certbot Docker images (yes, it is that long since I last checked certbot)
- DNS plugins to automate DNS management
tl;dr, this is how you use the certbot-dns-digitalocean plugin from docker to obtain a wildcard certificate.
docker run -ti --rm \ -v /home/itorres/var/dockerdata/letsencrypt/var:/var/lib/letsencrypt \ -v /home/itorres/var/dockerdata/letsencrypt/etc:/etc/letsencrypt \ certbot/dns-digitalocean certonly --dns-digitalocean \ --dns-digitalocean-credentials /etc/letsencrypt/secrets/do.ini \ -d "itorres.net" -d "*.itorres.net"
I will definitely donate to EFF for this.