rsh2

Rsh - Tiny wrapper over Net::SSH/SFTP

Because they are too hard to use and have terrible API design.

box = Rsh::Box.new host: 'webapp.com', ssh: {user: 'root', password: 'secret'}

box.upload_directory '/my_project', '/apps/my_project'
box.bash 'nohup /apps/my_project/server_start'

Honestly my wrapper also not very good. I would like to make API looks like the 'rush' gem (made by Adam Wiggins) but it requires a lots of time, maybe I'll do it later. So, for now it's just a small wrapper to do ssh/io operations not so painfull.

Ros - Small rake addon for configuration/depoyment management and automation

It may be usefull if Your claster has about 1-10 boxes, and tools like Chef, Puppet, Capistrano are too complex and proprietary for your needs. It's extremely easy, there are only 3 methods.

Define your packages, they are just rake tasks, so you probably know how to work with them:

namespace :os do
  package :ruby do
    applied?{|box| box.has_mark? :ruby}
    apply do |box| 
      box.bash 'apt-get install ruby'
      box.mark :ruby
    end
  end

  package :rails => :ruby do
    applied?{|box| box.has_mark? :rails}
    apply do |box| 
      box.bash 'gem install rails'
      box.mark :rails
    end
  end
end

Define to what it should be applied:

def each_box &b
  host = ENV['host'] || raise(":host not defined!")
  box = Rsh::Box.new host: host, ssh: {user: 'root', password: 'secret'}
  b.call box
end

Run it:

$ rake os:rails host=webapp.com

You can use it also for deployment, exactly the same way, configure it the way you like, it's just rake tasks. And by the way, the box.mark ... is just an example check, you can use anything there.

It checks if the package already has been applied to box, so you can evolve your configuration and apply it multiple times, it will apply only missing packages (or drop the applied? clause and it will be applied every run).

TODO

• introduce Entity/Dir/File (the same as in Rush)
• allow to move files between any Boxes, not only between local and remote.
• add support for moving dirs.