add basic ssh command runner

Gemfile

@@ -5,6 +5,7 @@ gem 'excon', '>= 0.0.21'
 gem 'formatador', ">= 0.0.10"
 gem 'json', ">= 0"
 gem 'mime-types', ">= 0"
+gem 'net-ssh', ">= 0"
 gem 'nokogiri', ">= 0"
 gem 'ruby-hmac', ">= 0"
 gem 'rspec', '>= 0'

Rakefile

@@ -11,6 +11,7 @@ begin
     gem.add_dependency('formatador', '>=0.0.10')
     gem.add_dependency('json')
     gem.add_dependency('mime-types')
+    gem.add_dependency('net-ssh')
     gem.add_dependency('nokogiri')
     gem.add_dependency('ruby-hmac')
     gem.name = "fog"

lib/fog.rb

@@ -8,6 +8,7 @@ require 'hmac-sha1'
 require 'hmac-sha2'
 require 'json'
 require 'mime/types'
+require 'net/ssh'
 require 'nokogiri'
 require 'time'
 
@@ -21,6 +22,7 @@ require 'fog/collection'
 require 'fog/connection'
 require 'fog/model'
 require 'fog/parser'
+require 'fog/ssh'
 require 'fog/aws'
 require 'fog/rackspace'
 require 'fog/slicehost'

lib/fog/ssh.rb

@@ -0,0 +1,31 @@
+module Fog
+
+  class SSH
+
+    def initialize(address, username, options = {})
+      unless options[:keys] || options[:password]
+        raise ArgumentError.new(':keys or :password are required to initialize SSH')
+      end
+      @address  = address
+      @username = username
+      @options  = options.merge!(:paranoid => false)
+    end
+
+    def run(commands)
+      commands = [*commands]
+      results = []
+      Net::SSH.start(@address, @username, @options) do |ssh|
+        commands.each do |command|
+          result = { :command => command }
+          ssh.exec!("bash -lc #{command.inspect}") do |channel, stream, data|
+            result[stream] = data
+          end
+          results << result
+        end
+      end
+      results
+    end
+
+  end
+
+end