Demae is Itamae ssh runner for nodes on environment.

This enable:

$ bundle exec demae apply staging

Add this line to your application's Gemfile:

gem 'demae'

And then execute:

$ bundle

Execute:

$ bundle exec demae install

Then these files are created.

.
└── config
     └── demae
          ├── production.yml
          └── staging.yml

First, write itamae recipes.
And modify config/demae/staging.yml.

And then execute:

$ bundle exec demae apply staging