Rake-deploy

A deploy system using rake. Maybe a light version of capistrano

You may prefer to see the updated wiki

Capistrano is a great project, maybe a little big in some cases, but with one big problem: it aims to cover all possible use cases.

rake-deploy is like a simple version of capistrano, and only intended to be the clumping of the most common to all projects: The management of versions of code.

The basic operation of rake-deploy is based on three principles:

• Add a configuration task environment.
• A set of tasks provided by rake-deploy.
• Hooks for each of the tasks with rake-hooks

In your Rakefile add:

require 'rake/deploy'

In any of your task files (for example, for rails: lib/tasks/deploy.rake)

deploy.deploy_to   = "/apps/app_name"
deploy.repository  = "ssh://user@github.com/myrepo.git"
deploy.host        = "esther.cientifico.net"

Now you can do: rake deploy:setup # To create app skeleton rake deploy # To deploy

For example, imagine you wan't to restart passanger, rake-deploy will not do it for you so just write:

after :deploy do
  deploy.run(deploy.host, "touch #{deploy.deploy_to}/current/tmp/restart.txt")
end

Or you want to make a backup of your database in each deploy

before :deploy do
  deploy.run("db.my_company.com", "mysqldump -u root my_app_db_production | gzip > /var/backups/#{deploy.release_name}.db.sql.bz2")
end

You can see more recipes, that you most copy and paste and edit in your files in the wiki:

• Use git.
• Don't use sudo (really need super user to deploy?)
• Use ssh keys from you to the server and from the server to the repo
• Use /current /releases/#{date} /shared schema in server (deploy:setup makes it for you)
• Use /shared/scaffold as a scaffold of your app. There will be the data shared between releases like database.yml, /tmp, /log or /public/shared
• User /shared/repo as a bare clone of your remote remote

Guillermo Álvarez guillermo@cientifico.net

Github rake-deploy

22 Jul 2010