Let's Encrypt add-on: Add an optional path for log outside of the container

Hi All,

Currently the log of the Let’s Encrypt add-on will be written into /var/log/letsencrypt/letsencrypt.log of the container of Let’s Encrypt and you can read it only “manually” in the Log tab.

It would be nice to have the possibility to read the last log programmatically e.g. in Node RED. In order to be able to read it outside of its container, it shall be written into the /config or /share folder.

In order to check the results automatically, the log of the last run would be enough, thus, it can be overwritten every time the add-on is running.

Thank you