lg$ cat /etc/acme-client.conf                                                                                                                                                                            
authority letsencrypt {
        api url "https://acme-v01.api.letsencrypt.org/directory"
        account key "/etc/acme/letsencrypt-privkey.pem"
}
authority letsencrypt-staging {
        api url "https://acme-staging.api.letsencrypt.org/directory"
        account key "/etc/acme/letsencrypt-staging-privkey.pem"
}
domain lg.grifon.fr {
        domain key "/etc/ssl/httpd/lg.grifon.fr.key"
        domain certificate "/etc/ssl/httpd/lg.grifon.fr.crt"
        domain full chain certificate "/etc/ssl/httpd/lg.grifon.fr.chained.crt"
        sign with letsencrypt
}