I’ve obtained certs earlier, and kept the folder containing all of them while redeploying the server.
As I understand it, the “letsencrypt install …” subcommand is intended to add existing certs to LetsEncrypt. Is this right? And if so, how does the command work? All I got so far is the command below which errors with “No installers seem to be present and working on your system”:
sudo letsencrypt install --cert-path archive/example.com/cert1.pem --key-path archive/example.com/privkey1.pem -d example.com -d www.example.com
PS: Ubuntu 16.04, Nginx, LetsEncrypt via apt-get.