updating and locking lvm to 3.0 (#55)

* Update default.rb

* Update metadata.rb

* Update metadata.rb

* Added attribute for wipe_attributes to pass along to the lvm_volump_group resource

* Allow gem deps to vary within major version

This fixes this error, which was solved in newer versions of Ridley:
    An error occurred while reading the Berksfile:
      uninitialized constant Ridley::Mixin::ParamsValidate::ValidationFailed

https://travis-ci.org/rightscale-cookbooks/ephemeral_lvm/builds/125138768

* according to chai gce changed metadata
ephemeral drives have type "LOCAL-SSD" now

"gce": {
    "attached_disks": {
      "disks": [
        {
          "deviceName": "persistent-disk-0",
          "index": 0,
          "mode": "READ_WRITE",
          "type": "PERSISTENT"
        },
        {
          "deviceName": "local-ssd-0",
          "index": 1,
          "mode": "READ_WRITE",
          "type": "LOCAL-SSD"
        }
      ]
    },

* updated metadata and changeling

* updating to lvm-3.0

* additional try for wipefs as new version supports -f flag

* fix deprecation warning, using allow instead of should_receive

* chef 12 migration

* updating travis

* updating net-persistent-http

* fixing versions

* updating from skeleton for tests

* adding gitignore

* updating for cookstyle

* removing berksfile.lock

* adding .travis_install.sh

* removing centos7.0

* removing apt

* updating ruby-version

* updating rakefile and travis

* pinning Berksfile.lock

* updating readme to chef12

* using pipmychangelog

* fixes #57

* updating lvm to 4.0.5

* updating changelog

* reverting to 3.1.0, since 4.0.x has breaking changes

.rubocop.yml

@@ -2,12 +2,6 @@ AllCops:
   Exclude:
     - 'berks-cookbooks/**/*'
     - 'knife.rb'
-Style/AccessorMethodName:
-  Exclude:
-    - 'Rakefile'
-Metrics/BlockNesting:
-  Exclude:
-    - 'libraries/helper.rb'
-Style/GuardClause:
-  Exclude:
-    - 'test/cookbooks/fake/recipes/gce.rb'
+#Metrics/BlockNesting:
+#  Exclude:
+#    - 'libraries/helper.rb'

Berksfile

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 source 'https://supermarket.chef.io'
 
 metadata

Berksfile.lock

@@ -6,7 +6,9 @@ DEPENDENCIES
     path: test/cookbooks/fake
 
 GRAPH
-  ephemeral_lvm (2.0.0)
-    lvm (~> 3.1)
+  ephemeral_lvm (2.1.0)
+    lvm (~> 3.1.0)
+    now (>= 0.0.0)
   fake (0.1.0)
   lvm (3.1.0)
+  now (1.0.0)

CHANGELOG.md

@@ -3,6 +3,18 @@ ephemeral_lvm Cookbook CHANGELOG
 
 This file is used to list changes made in each version of the ephemeral_lvm cookbook.
 
+v2.1.0
+------
+- [lvm-3.1.0](https://github.com/chef-cookbooks/lvm/releases/tag/v3.1.0)
+- Pull Request [#50][]: fixed detection for gce ephemeral device type "LOCAL-SSD" ([@areznikov-kabam][])
+- Pull Request [#48][]: Wipe Signatures ([@kingpong][])
+- Pull Request [#46][]: Added attribute for wipe_attributes to pass along to the lvm_volump_group ([@freimer][])
+- Pull Request [#33][]: Using include_recipe_now technic to allow compile time lvm2 package run ([@felka][])
+
+v2.0.1
+-------
+- addressed GCE "LOCAL-SSD" type for ephemeral drives
+
 v2.0.0
 -------
 
@@ -113,7 +125,15 @@ v1.0.0
 [#11]: https://github.com/rightscale-cookbooks/ephemeral_lvm/issues/11
 [#13]: https://github.com/rightscale-cookbooks/ephemeral_lvm/issues/13
 [#19]: https://github.com/rightscale-cookbooks/ephemeral_lvm/issues/19
+[#33]: https://github.com/rightscale-cookbooks/ephemeral_lvm/issues/33
+[#46]: https://github.com/rightscale-cookbooks/ephemeral_lvm/issues/46
+[#48]: https://github.com/rightscale-cookbooks/ephemeral_lvm/issues/48
+[#50]: https://github.com/rightscale-cookbooks/ephemeral_lvm/issues/50
 [#54]: https://github.com/rightscale-cookbooks/ephemeral_lvm/issues/54
+[@areznikov-kabam]: https://github.com/areznikov-kabam
 [@autrejacoupa]: https://github.com/autrejacoupa
 [@drywheat]: https://github.com/drywheat
+[@felka]: https://github.com/felka
+[@freimer]: https://github.com/freimer
 [@juliandunn]: https://github.com/juliandunn
+[@kingpong]: https://github.com/kingpong

Gemfile

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 source 'https://rubygems.org'
 
 gem 'rake'

Vagrantfile

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # -*- mode: ruby -*-
 # vi: set ft=ruby :
 

attributes/default.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #
 # Cookbook Name:: ephemeral_lvm
 # Attributes:: default
@@ -42,3 +43,6 @@
 
 # The stripe size in kilobytes to be used if more than one ephemeral disk is found
 default['ephemeral_lvm']['stripe_size'] = 512
+
+# Whether to wipe signatures on any existing drives
+default['ephemeral_lvm']['wipe_signatures'] = false

libraries/helper.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #
 # Cookbook Name:: ephemeral_lvm
 # Library:: helper
@@ -24,7 +25,33 @@ module Helper
     #
     # @param cloud [String] the name of cloud
     # @param node [Chef::Node] the Chef node
+    def self.gce_ephemeral_devices?(cloud, node)
+      # According to the GCE documentation, the instances have links for ephemeral disks as
+      # /dev/disk/by-id/google-ephemeral-disk-*. Refer to
+      # https://developers.google.com/compute/docs/disks#scratchdisks for more information.
+      #
+      ephemeral_devices = node[cloud]['attached_disks']['disks'].map do |disk|
+        if ((disk['type'] == 'EPHEMERAL') || (disk['type'] == 'LOCAL-SSD')) && disk['deviceName'].match(/^local-ssd-\d+$/)
+          "/dev/disk/by-id/google-#{disk['deviceName']}"
+        end
+      end unless node[cloud]['attached_disks'].nil?
+
+      ephemeral_devices = node[cloud]['instance']['disks'].map do |disk|
+        if disk['type'] == 'LOCAL-SSD' && disk['deviceName'].match(/^local-ssd-\d+$/)
+          "/dev/disk/by-id/google-#{disk['deviceName']}"
+        end
+      end unless node[cloud]['instance'].nil?
+
+      # Removes nil elements from the ephemeral_devices array if any.
+      ephemeral_devices.compact!
+      ephemeral_devices
+    end
+
+    # Identifies the ephemeral devices available on a cloud server based on cloud-specific Ohai data and returns
+    # them as an array. This method also does the mapping required for Xen hypervisors (/dev/sdX -> /dev/xvdX).
     #
+    # @param cloud [String] the name of cloud
+    # @param node [Chef::Node] the Chef node
     # @return [Array<String>] list of ephemeral available ephemeral devices.
     #
     def self.get_ephemeral_devices(cloud, node)
@@ -58,24 +85,7 @@ def self.get_ephemeral_devices(cloud, node)
         #
         case cloud
         when 'gce'
-          # According to the GCE documentation, the instances have links for ephemeral disks as
-          # /dev/disk/by-id/google-ephemeral-disk-*. Refer to
-          # https://developers.google.com/compute/docs/disks#scratchdisks for more information.
-          #
-          ephemeral_devices = node[cloud]['attached_disks']['disks'].map do |disk|
-            if disk['type'] == 'EPHEMERAL' && disk['deviceName'].match(/^local-ssd-\d+$/)
-              "/dev/disk/by-id/google-#{disk['deviceName']}"
-            end
-          end unless node[cloud]['attached_disks'].nil?
-
-          ephemeral_devices = node[cloud]['instance']['disks'].map do |disk|
-            if disk['type'] == 'LOCAL-SSD' && disk['deviceName'].match(/^local-ssd-\d+$/)
-              "/dev/disk/by-id/google-#{disk['deviceName']}"
-            end
-          end unless node[cloud]['instance'].nil?
-
-          # Removes nil elements from the ephemeral_devices array if any.
-          ephemeral_devices.compact!
+          ephemeral_devices = gce_ephemeral_devices?(cloud, node)
         else
           Chef::Log.info 'No ephemeral disks found.'
         end

metadata.rb

@@ -1,10 +1,11 @@
+# frozen_string_literal: true
 name             'ephemeral_lvm'
 maintainer       'RightScale, Inc.'
 maintainer_email '[email protected]'
 license          'Apache 2.0'
 description      'Configures available ephemeral devices on a cloud server'
 long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
-version          '2.0.0'
+version          '2.1.0'
 issues_url       'https://github.com/rightscale-cookbooks/ephemeral_lvm/issues' if respond_to?(:issues_url)
 source_url       'https://github.com/rightscale-cookbooks/ephemeral_lvm' if respond_to?(:source_url)
 chef_version '>= 12.0' if respond_to?(:chef_version)
@@ -13,7 +14,8 @@
 supports 'centos'
 supports 'debian'
 
-depends 'lvm', '~> 3.1'
+depends 'now'
+depends 'lvm', '~> 3.1.0'
 
 recipe 'ephemeral_lvm::default', 'Sets up ephemeral devices on a cloud server'
 
@@ -66,3 +68,10 @@
   default: '512',
   recipes: ['ephemeral_lvm::default'],
   required: 'optional'
+
+attribute 'ephemeral_lvm/wipe_signatures',
+  display_name: 'Ephemeral LVM Wire Signatures',
+  description: 'Whether to wipe any existing filesystem signatures',
+  default: false,
+  recipes: ['ephemeral_lvm::default'],
+  required: 'optional'

recipes/default.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #
 # Cookbook Name:: ephemeral_lvm
 # Recipe:: default
@@ -19,7 +20,7 @@
 
 # Include the lvm::default recipe which sets up the resources/providers for lvm
 #
-include_recipe 'lvm'
+include_recipe_now 'lvm'
 
 if !node.attribute?('cloud') || !node['cloud'].attribute?('provider') || !node.attribute?(node['cloud']['provider'])
   log 'Not running on a known cloud, not setting up ephemeral LVM'
@@ -46,6 +47,7 @@
           ephemeral_devices.each do |ephemeral_device|
             Chef::Log.info "Preparing #{ephemeral_device}"
             Mixlib::ShellOut.new("wipefs --all #{ephemeral_device}").run_command
+            Mixlib::ShellOut.new("wipefs --all  -f #{ephemeral_device}").run_command
           end
         else
           Chef::Log.info 'No need to remove ephemeral disk filesystem signatures.'
@@ -57,6 +59,8 @@
     # they are created with LVM stripes with the stripe size set in the attributes.
     #
     lvm_volume_group node['ephemeral_lvm']['volume_group_name'] do
+      wipe_signatures node['ephemeral_lvm']['wipe_signatures']
+
       physical_volumes ephemeral_devices
 
       logical_volume node['ephemeral_lvm']['logical_volume_name'] do

spec/ephemeral_lvm_helper_spec.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'spec_helper'
 require_relative '../libraries/helper'
 require 'logger'

spec/spec_helper.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #
 # Cookbook Name:: ephemeral_lvm
 # Spec:: spec_helper

test/cookbooks/fake/attributes/default.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #
 # Cookbook Name:: fake
 # Attributes:: default

test/cookbooks/fake/libraries/helper.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #
 # Cookbook Name:: fake
 # Library:: helper

test/cookbooks/fake/metadata.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 name             'fake'
 maintainer       'RightScale, Inc.'
 maintainer_email '[email protected]'

test/cookbooks/fake/recipes/default.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #
 # Cookbook Name:: fake
 # Recipe:: default

test/cookbooks/fake/recipes/gce.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #
 # Cookbook Name:: fake
 # Recipe:: gce
@@ -26,11 +27,8 @@
 #
 node['fake']['devices'].each do |device|
   match = device.match(%{\/dev\/loop(\d+)})
-  if match.nil?
-    next
-  else
-    device_index = match[1]
-  end
+  next if match.nil?
+  device_index = match[1]
   link "/dev/disk/by-id/google-ephemeral-disk-#{device_index}" do
     to device
   end