This image is out of date and obsolete, please consider other images like adferrand/letsencrypt-dns.
docker run -v /var/letsencrypt:/data --rm jokester/letsencrypt
If it did not succeed,
/var/letsencrypt/* as needed.
Credentials for DNS challenge
You will need auth credentials (aka API keys / tokens) from your DNS providers.
(In case you are curious, these credentials are used to create a TXT record in the domain, and convince letsencrypt that you really own it.)
The credentials can be set with
docker run -e, or with
For example, a digital ocean user can use:
docker run -e "PROVIDER=digitalocean" -e "LEXICON_DIGITALOCEAN_TOKEN=aaaabbbb12344321" jokester/letsencrypt
See lexicon for the required variables for your provider.