Add gemspec and Gemfile

Change-Id: Iaddd056852160b1656730cdbaae287eec5285e75
Closes-Bug: #1517840

.gitignore

@@ -27,9 +27,9 @@ build/
 
 # for a library or gem, you might want to ignore these files since the code is
 # intended to run in multiple environments; otherwise, check them in:
-# Gemfile.lock
+Gemfile.lock
 # .ruby-version
 # .ruby-gemset
-
+.bundled_gems
 # unless supporting rvm < 1.11.0 or doing something fancy, ignore this:
 .rvmrc

Gemfile

@@ -0,0 +1,3 @@
+source 'https://rubygems.org'
+
+gemspec

nailgun-agent.gemspec

@@ -0,0 +1,15 @@
+Gem::Specification.new do |s|
+  s.name = 'nailgun-agent'
+  s.version = '0.1'
+
+  s.summary     = 'Discovery agent'
+  s.description = 'The agent is to be run on slave nodes to gather hardware information'
+  s.authors     = ["OpenStack community"]
+  s.email       = 'openstack-dev@lists.openstack.org'
+
+  s.add_dependency 'ohai', '6.14.0'
+  s.add_development_dependency 'rake', '10.0.4'
+
+  s.files = ['agent']
+  s.executables = ['agent']
+end