| PackageDescription | The idea of the library is to simplify certificates configuration in Erlang programs.
Typically an Erlang program which needs certificates (for HTTPS/MQTT/XMPP/etc)
provides a bunch of options such as `certfile`, `chainfile`, `privkey`, etc.
The situation becomes even more complicated when a server supports so called `virtual domains`
because a program is typically required to match a virtual domain with its certificate.
If a user has plenty of virtual domains (stored somewhere in `/etc/letsencrypt/live/*/*.pem`)
it's quickly becoming a nightmare for them to configure all this. The complexity also leads to
errors: a single configuration mistake and a program generates obscure log messages,
unreadable Erlang tracebacks or, even worse, just silently ignores the errors. Fortunately,
the large part of certificates configuration can be automated, reducing a user configuration
to something as simple as:
```yaml
certfiles:
- /etc/letsencrypt/live/*/*.pem
```
The purpose of the library is to do this dirty job under the hood. |