Letsencrypt/letsencrypt-autoについて、ここに記述してください。

1. virtualenv 下

ここまで進んだので、 "letsencrypt -a manual" を試す段階に進める。　-- ToshinoriMaeno 2015-11-21 10:11:16

に必要なパラメタを指定すること。 

Creating virtual environment...
Updating letsencrypt and virtual environment dependencies.......
Running with virtualenv: sudo /home/tmaeno/.local/share/letsencrypt/bin/letsencrypt --server https://acme-v01.api.letsencrypt.org/directory --help

  letsencrypt [SUBCOMMAND] [options] [-d domain] [-d domain] ...

The Let's Encrypt agent can obtain and install HTTPS/TLS/SSL certificates.  By
default, it will attempt to use a webserver both for obtaining and installing
the cert. Major SUBCOMMANDS are:

  (default) run        Obtain & install a cert in your current webserver
  certonly             Obtain cert, but do not install it (aka "auth")
  install              Install a previously obtained cert in a server
  revoke               Revoke a previously obtained certificate
  rollback             Rollback server configuration changes made during install
  config_changes       Show changes made to server config during installation

Choice of server plugins for obtaining and installing cert:

  --apache          Use the Apache plugin for authentication & installation
  --standalone      Run a standalone webserver for authentication
  (nginx support is experimental, buggy, and not installed by default)

OR use different servers to obtain (authenticate) the cert and then install it:

  --authenticator standalone --installer apache

More detailed help:

  -h, --help [topic]    print this message, or detailed help on a topic;
                        the available topics are:

   all, automation, paths, security, testing, or any of the subcommands or
   plugins (certonly, install, nginx, apache, standalone, etc)