Papers, Please

capfile.md

    set :application, `basename $(pwd)`.chomp
    set :commit_sha, `git rev-parse --short "HEAD"`.chomp
    set :default_environment, {
      "RATIONALE_CLIENT" => "capistrano",
      "RATIONALE" => "'Deploying #{application} #{commit_sha}'"
    }

rationale_logs.md

Dec 16 21:27:24 cdehost1 RATIONALE[46672]: event='ssh rationale' client='interactive-ssh' user='ops' ip='10.20.30.5' rationale='testing rationale' command="/bin/bash"
Dec 16 21:29:15 cdehost1 RATIONALE[46672]: event='ssh rationale' client='interactive-ssh' user='ops' ip='10.20.30.5' rationale='testing rationale' metric='111.011724' metric_units='seconds' description='session end'
Dec 16 21:30:33 cdehost2 RATIONALE[33096]: event='ssh rationale' client='ansible' user='ops' ip='10.20.30.5' rationale='gather ansible facts' command="/bin/sh -c '/usr/bin/python'"
Dec 16 21:30:34 cdehost2 RATIONALE[33096]: event='ssh rationale' client='ansible' user='ops' ip='10.20.30.5' rationale='gather ansible facts' metric='1.117183' metric_units='seconds' description='session end'
Dec 16 22:56:14 cdehost1 RATIONALE[14518]: event='ssh rationale' client='capistrano' user='dev' ip='10.20.30.6' rationale='Deploying app 2df726a' command="env RATIONALE_CLIENT=capistrano RATIONALE='Deploying\ app\ 2df726a' sh -c '/srv/app/bundle-exec rake assets:precompile'"
Dec 16 17:56:18 cdehost1 RATIONALE[14518]: event='ssh rationale' client='capistrano' user='dev' ip='10.20.30.6' rationale='Deploying app 2df726a' metric='4.852107' metric_units='seconds' description='session end'

sendenv_test.md

user@devbox:~$ export RATIONALE="testing sendenv" RATIONALE_CLIENT="ad-hoc"
user@devbox:~$ ssh server

user@server:~$ echo $RATIONALE
testing sendenv

user@server:~$ echo $RATIONALE_CLIENT
ad-hoc

user@server:~$ ^D

ssh_prompt.md

$ ssh ops@cdehost
RATIONALE: _

Do you think it would be possible to share the script you used for SSH's ForceCommand?

Yes, such an interesting blog post, but the script would really help.