Add Gemfile and puppet 4 checks

In anticipation of puppet 4, start trying to deal with puppet 4 things
that can be helpfully predicted by puppet lint plugins. Also fix lint
errors caught by the puppet-lint-absolute_classname-check check as well
as arrow alignment errors that were not being caught by the
system-installed version of puppet-lint before.

Change-Id: I4e6b0df76c0e1b1e9faa9e8884a78ab1e9ab38d7

.gitignore

@@ -0,0 +1,2 @@
+Gemfile.lock
+.bundled_gems/

Gemfile

@@ -0,0 +1,30 @@
+source 'https://rubygems.org'
+
+group :development, :test do
+  gem 'puppetlabs_spec_helper', :require => false
+
+  gem 'metadata-json-lint'
+  # This is nice and all, but let's not worry about it until we've actually
+  # got puppet 4.x sorted
+  # gem 'puppet-lint-param-docs'
+  gem 'puppet-lint-absolute_classname-check'
+  gem 'puppet-lint-absolute_template_path'
+  gem 'puppet-lint-trailing_newline-check'
+
+  # Puppet 4.x related lint checks
+  gem 'puppet-lint-unquoted_string-check'
+  gem 'puppet-lint-empty_string-check'
+  gem 'puppet-lint-leading_zero-check'
+  gem 'puppet-lint-variable_contains_upcase'
+  gem 'puppet-lint-spaceship_operator_without_tag-check'
+  gem 'puppet-lint-undef_in_function-check'
+
+  if puppetversion = ENV['PUPPET_GEM_VERSION']
+    gem 'puppet', puppetversion, :require => false
+  else
+    gem 'puppet', '~> 3.0', :require => false
+  end
+
+end
+
+# vim:ft=ruby

manifests/init.pp

@@ -37,7 +37,7 @@ class nodepool (
 ) {
 
 
-  class { 'mysql::server':
+  class { '::mysql::server':
     config_hash => {
       'root_password'  => $mysql_root_password,
       'default_engine' => 'InnoDB',
@@ -45,8 +45,8 @@ class nodepool (
     }
   }
 
-  include mysql::server::account_security
+  include ::mysql::server::account_security
-  include mysql::python
+  include ::mysql::python
 
   mysql::db { 'nodepool':
     user     => 'nodepool',
@@ -102,9 +102,9 @@ class nodepool (
     source   => $git_source_repo,
   }
 
-  include diskimage_builder
+  include ::diskimage_builder
 
-  include pip
+  include ::pip
   exec { 'install_nodepool' :
     command     => 'pip install -U /opt/nodepool',
     path        => '/usr/local/bin:/usr/bin:/bin/',