Ruby linting for Vagrantfile

Mostly cosmetic changes with a few changes to preferred conditional
formatting.

The only linting issues outstanding are lines that are too long and
using snake_case for the filename.

Vagrantfile

@@ -1,28 +1,27 @@
 # -*- mode: ruby -*-
 # vi: set ft=ruby :
 
-
-VAGRANTFILE_API_VERSION = "2"
+VAGRANTFILE_API_VERSION = '2'
 
 NMONS = 3
 NOSDS = 3
 
-ansible_provision = Proc.new do |ansible|
-  ansible.playbook = "site.yml"
+ansible_provision = proc do |ansible|
+  ansible.playbook = 'site.yml'
   # Note: Can't do ranges like mon[0-2] in groups because
   # these aren't supported by Vagrant, see
   # https://github.com/mitchellh/vagrant/issues/3539
   ansible.groups = {
-    "mons" => (0..NMONS-1).map {|j| "mon#{j}"},
-    "osds" => (0..NOSDS-1).map {|j| "osd#{j}"},
-    "mdss" => [],
-    "rgws" => ["rgw"]
+    'mons' => (0..NMONS - 1).map { |j| "mon#{j}" },
+    'osds' => (0..NOSDS - 1).map { |j| "osd#{j}" },
+    'mdss' => [],
+    'rgws' => ['rgw']
   }
 
   # In a production deployment, these should be secret
   ansible.extra_vars = {
-   fsid: "4a158d27-f750-41d5-9e7f-26ce4c9d2d45",
-   monitor_secret: "AQAWqilTCDh7CBAAawXt6kyTgLFCxSvJhTEmuw=="
+    fsid: '4a158d27-f750-41d5-9e7f-26ce4c9d2d45',
+    monitor_secret: 'AQAWqilTCDh7CBAAawXt6kyTgLFCxSvJhTEmuw=='
   }
   ansible.limit = 'all'
 end
@@ -30,30 +29,29 @@ end
 def create_vmdk(name, size)
   dir = Pathname.new(__FILE__).expand_path.dirname
   path = File.join(dir, '.vagrant', name + '.vmdk')
-  %x(vmware-vdiskmanager -c -s #{size} -t 0 -a scsi #{path} 2>&1 > /dev/null) unless File.exist?(path)
-  return path
+  `vmware-vdiskmanager -c -s #{size} -t 0 -a scsi #{path} 2>&1 > /dev/null` unless File.exist?(path)
 end
 
 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
-  config.vm.box = "hashicorp/precise64"
+  config.vm.box = 'hashicorp/precise64'
 
   config.vm.define :rgw do |rgw|
-    rgw.vm.network :private_network, ip: "192.168.42.2"
-    rgw.vm.host_name = "ceph-rgw"
+    rgw.vm.network :private_network, ip: '192.168.42.2'
+    rgw.vm.host_name = 'ceph-rgw'
     rgw.vm.provider :virtualbox do |vb|
-      vb.customize ["modifyvm", :id, "--memory", "192"]
+      vb.customize ['modifyvm', :id, '--memory', '192']
     end
     rgw.vm.provider :vmware_fusion do |v|
       v.vmx['memsize'] = '192'
     end
   end
 
-  (0..NMONS-1).each do |i|
+  (0..NMONS - 1).each do |i|
     config.vm.define "mon#{i}" do |mon|
       mon.vm.hostname = "ceph-mon#{i}"
       mon.vm.network :private_network, ip: "192.168.42.1#{i}"
       mon.vm.provider :virtualbox do |vb|
-        vb.customize ["modifyvm", :id, "--memory", "192"]
+        vb.customize ['modifyvm', :id, '--memory', '192']
       end
       mon.vm.provider :vmware_fusion do |v|
         v.vmx['memsize'] = '192'
@@ -61,30 +59,28 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
     end
   end
 
-  (0..NOSDS-1).each do |i|
+  (0..NOSDS - 1).each do |i|
     config.vm.define "osd#{i}" do |osd|
       osd.vm.hostname = "ceph-osd#{i}"
       osd.vm.network :private_network, ip: "192.168.42.10#{i}"
       osd.vm.network :private_network, ip: "192.168.42.20#{i}"
       osd.vm.provider :virtualbox do |vb|
         (0..1).each do |d|
-          vb.customize [ "createhd", "--filename", "disk-#{i}-#{d}", "--size", "11000" ]
-          vb.customize [ "storageattach", :id, "--storagectl", "SATA Controller", "--port", 3+d, "--device", 0, "--type", "hdd", "--medium", "disk-#{i}-#{d}.vdi" ]
+          vb.customize ['createhd', '--filename', "disk-#{i}-#{d}", '--size', '11000']
+          vb.customize ['storageattach', :id, '--storagectl', 'SATA Controller', '--port', 3 + d, '--device', 0, '--type', 'hdd', '--medium', "disk-#{i}-#{d}.vdi"]
         end
-        vb.customize ["modifyvm", :id, "--memory", "192"]
+        vb.customize ['modifyvm', :id, '--memory', '192']
       end
       osd.vm.provider :vmware_fusion do |v|
         (0..1).each do |d|
-          v.vmx["scsi0:#{d+1}.present"] = 'TRUE'
-          v.vmx["scsi0:#{d+1}.fileName"] = create_vmdk("disk-#{i}-#{d}", '11000MB')
+          v.vmx["scsi0:#{d + 1}.present"] = 'TRUE'
+          v.vmx["scsi0:#{d + 1}.fileName"] = create_vmdk("disk-#{i}-#{d}", '11000MB')
         end
         v.vmx['memsize'] = '192'
       end
 
       # Run the provisioner after the last machine comes up
-      if i == (NOSDS-1)
-        osd.vm.provision "ansible", &ansible_provision
-      end
+      osd.vm.provision 'ansible', &ansible_provision if i == (NOSDS - 1)
     end
   end
 end