Sets container name based on vagrant root path

Closes #14

lib/vagrant-lxc/action/create.rb

@@ -3,7 +3,10 @@ module Vagrant
     module Action
       class Create < BaseAction
         def call(env)
-          machine_id         = env[:machine].provider.container.create(env[:machine].box.metadata)
+          base_name = env[:root_path].basename.to_s
+          base_name.gsub!(/[^-a-z0-9_]/i, "")
+
+          machine_id         = env[:machine].provider.container.create(base_name, env[:machine].box.metadata)
           env[:machine].id   = machine_id
           env[:just_created] = true
           @app.call env

lib/vagrant-lxc/container.rb

@@ -42,10 +42,10 @@ module Vagrant
         Pathname.new("#{base_path}/rootfs")
       end
 
-      def create(metadata = {})
+      def create(base_name, metadata = {})
         @logger.debug('Creating container using lxc-create...')
 
-        @name      = SecureRandom.hex(6)
+        @name      = "#{base_name}-#{SecureRandom.hex(6)}"
         public_key = Vagrant.source_root.join('keys', 'vagrant.pub').expand_path.to_s
         meta_opts  = metadata.fetch('template-opts', {}).merge(
           '--auth-key' => public_key,

spec/unit/container_spec.rb

@@ -33,7 +33,8 @@ describe Vagrant::LXC::Container do
   end
 
   describe 'creation' do
-    let(:name)            { 'random-container-name' }
+    let(:base_name)       { 'container-name' }
+    let(:suffix)          { 'random-suffix' }
     let(:template_name)   { 'template-name' }
     let(:rootfs_cache)    { '/path/to/cache' }
     let(:public_key_path) { Vagrant.source_root.join('keys', 'vagrant.pub').expand_path.to_s }
@@ -42,11 +43,12 @@ describe Vagrant::LXC::Container do
     subject { described_class.new(name, cli) }
 
     before do
-      SecureRandom.stub(hex: name)
-      subject.create 'template-name' => template_name, 'rootfs-cache-path' => rootfs_cache, 'template-opts' => { '--foo' => 'bar'}
+      SecureRandom.stub(hex: suffix)
+      subject.create base_name, 'template-name' => template_name, 'rootfs-cache-path' => rootfs_cache, 'template-opts' => { '--foo' => 'bar'}
     end
 
     it 'creates container with the right arguments' do
+      cli.should have_received(:name=).with("#{base_name}-#{suffix}")
       cli.should have_received(:create).with(
         template_name,
         '--auth-key' => public_key_path,