├── TODO ├── spec ├── spec_helper.rb └── chevre_spec.rb ├── README.rdoc ├── NOTICE ├── script ├── destroy └── generate ├── lib ├── chevre │ ├── domain.rb │ ├── hypervisor.rb │ └── capabilities.rb ├── chevre.rb ├── hash.rb └── ser_des.rb ├── bin └── chevre ├── Rakefile └── LICENSE /TODO: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /spec/spec_helper.rb: -------------------------------------------------------------------------------- 1 | $TESTING=true 2 | $:.push File.join(File.dirname(__FILE__), '..', 'lib') 3 | -------------------------------------------------------------------------------- /README.rdoc: -------------------------------------------------------------------------------- 1 | == chevre 2 | 3 | Chevre is virtualization/hypervisor support for Chef. Chef + Virtualization -> Chevre. I slay me. -------------------------------------------------------------------------------- /spec/chevre_spec.rb: -------------------------------------------------------------------------------- 1 | require File.dirname(__FILE__) + '/spec_helper' 2 | 3 | describe "chevre" do 4 | it "should do nothing" do 5 | true.should == true 6 | end 7 | end -------------------------------------------------------------------------------- /NOTICE: -------------------------------------------------------------------------------- 1 | ============== 2 | Chevre Notices 3 | ============== 4 | 5 | Developed at Opscode (http://opscode.com). 6 | 7 | Contributors and Copyright holders: 8 | 9 | * Copyright 2009, Opscode 10 | * Copyright 2009, Benjamin Black 11 | -------------------------------------------------------------------------------- /script/destroy: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | APP_ROOT = File.expand_path(File.join(File.dirname(__FILE__), '..')) 3 | 4 | begin 5 | require 'rubigen' 6 | rescue LoadError 7 | require 'rubygems' 8 | require 'rubigen' 9 | end 10 | require 'rubigen/scripts/destroy' 11 | 12 | ARGV.shift if ['--help', '-h'].include?(ARGV[0]) 13 | RubiGen::Base.use_component_sources! [:newgem_simple, :test_unit] 14 | RubiGen::Scripts::Destroy.new.run(ARGV) 15 | -------------------------------------------------------------------------------- /script/generate: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | APP_ROOT = File.expand_path(File.join(File.dirname(__FILE__), '..')) 3 | 4 | begin 5 | require 'rubigen' 6 | rescue LoadError 7 | require 'rubygems' 8 | require 'rubigen' 9 | end 10 | require 'rubigen/scripts/generate' 11 | 12 | ARGV.shift if ['--help', '-h'].include?(ARGV[0]) 13 | RubiGen::Base.use_component_sources! [:newgem_simple, :test_unit] 14 | RubiGen::Scripts::Generate.new.run(ARGV) 15 | -------------------------------------------------------------------------------- /lib/chevre/domain.rb: -------------------------------------------------------------------------------- 1 | # 2 | # Author:: Benjamin Black () 3 | # Copyright:: Copyright (c) 2009 Opscode, Inc. 4 | # License:: Apache License, Version 2.0 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # http://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | module Chevre 20 | class Domain 21 | 22 | def create() 23 | 24 | end 25 | 26 | def create!() 27 | 28 | end 29 | 30 | end 31 | end -------------------------------------------------------------------------------- /lib/chevre.rb: -------------------------------------------------------------------------------- 1 | # 2 | # Author:: Benjamin Black () 3 | # Copyright:: Copyright (c) 2009 Opscode, Inc. 4 | # License:: Apache License, Version 2.0 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # http://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | require 'libvirt' 20 | 21 | $:.unshift File.dirname(__FILE__) 22 | require 'hash' 23 | require 'ser_des' 24 | require 'chevre/capabilities' 25 | require 'chevre/domain' 26 | require 'chevre/hypervisor' 27 | 28 | module Chevre 29 | VERSION = '0.0.1' 30 | end -------------------------------------------------------------------------------- /lib/hash.rb: -------------------------------------------------------------------------------- 1 | # 2 | # Author:: Benjamin Black () 3 | # Copyright:: Copyright (c) 2009 Opscode, Inc. 4 | # License:: Apache License, Version 2.0 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # http://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | class Hash 20 | 21 | def deep_merge(second) 22 | # From: http://www.ruby-forum.com/topic/142809 23 | # Author: Stefan Rusterholz 24 | merger = proc { |key,v1,v2| Hash === v1 && Hash === v2 ? v1.merge(v2, &merger) : v2 } 25 | self.merge(second, &merger) 26 | end 27 | 28 | end -------------------------------------------------------------------------------- /bin/chevre: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | # 3 | # Author:: Benjamin Black () 4 | # Copyright:: Copyright (c) 2009 Opscode, Inc. 5 | # License:: Apache License, Version 2.0 6 | # 7 | # Licensed under the Apache License, Version 2.0 (the "License"); 8 | # you may not use this file except in compliance with the License. 9 | # You may obtain a copy of the License at 10 | # 11 | # http://www.apache.org/licenses/LICENSE-2.0 12 | # 13 | # Unless required by applicable law or agreed to in writing, software 14 | # distributed under the License is distributed on an "AS IS" BASIS, 15 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 | # See the License for the specific language governing permissions and 17 | # limitations under the License. 18 | # 19 | 20 | $: << File.join(File.dirname(__FILE__), "..", "lib") 21 | 22 | require 'rubygems' 23 | require 'json' 24 | require 'chevre' 25 | 26 | Chevre::Hypervisor.open("qemu:///system", {"read_only" => true}) 27 | puts JSON.pretty_generate(Chevre::Hypervisor.capabilities.desc) 28 | puts JSON.pretty_generate(Chevre::Hypervisor.capabilities.default) 29 | Chevre::Hypervisor.close 30 | -------------------------------------------------------------------------------- /Rakefile: -------------------------------------------------------------------------------- 1 | require 'rubygems' 2 | require 'rake/gempackagetask' 3 | require 'rubygems/specification' 4 | require 'date' 5 | require 'spec/rake/spectask' 6 | 7 | GEM = "chevre" 8 | GEM_VERSION = "0.0.1" 9 | AUTHOR = "Benjamin Black" 10 | EMAIL = "bb@opscode.com" 11 | HOMEPAGE = "http://opscode.com" 12 | SUMMARY = "Chevre is virtualization/hypervisor support for Chef. Chef + Virtualization -> Chevre. I slay me." 13 | 14 | spec = Gem::Specification.new do |s| 15 | s.name = GEM 16 | s.version = GEM_VERSION 17 | s.platform = Gem::Platform::RUBY 18 | s.has_rdoc = true 19 | s.extra_rdoc_files = ["README", "LICENSE", 'TODO'] 20 | s.summary = SUMMARY 21 | s.description = s.summary 22 | s.author = AUTHOR 23 | s.email = EMAIL 24 | s.homepage = HOMEPAGE 25 | 26 | # Uncomment this to add a dependency 27 | # s.add_dependency "foo" 28 | 29 | s.require_path = 'lib' 30 | s.autorequire = GEM 31 | s.files = %w(LICENSE README Rakefile TODO) + Dir.glob("{lib,spec}/**/*") 32 | end 33 | 34 | task :default => :spec 35 | 36 | desc "Run specs" 37 | Spec::Rake::SpecTask.new do |t| 38 | t.spec_files = FileList['spec/**/*_spec.rb'] 39 | t.spec_opts = %w(-fs --color) 40 | end 41 | 42 | 43 | Rake::GemPackageTask.new(spec) do |pkg| 44 | pkg.gem_spec = spec 45 | end 46 | 47 | desc "install the gem locally" 48 | task :install => [:package] do 49 | sh %{sudo gem install pkg/#{GEM}-#{GEM_VERSION}} 50 | end 51 | 52 | desc "create a gemspec file" 53 | task :make_spec do 54 | File.open("#{GEM}.gemspec", "w") do |file| 55 | file.puts spec.to_ruby 56 | end 57 | end -------------------------------------------------------------------------------- /lib/chevre/hypervisor.rb: -------------------------------------------------------------------------------- 1 | # 2 | # Author:: Benjamin Black () 3 | # Copyright:: Copyright (c) 2009 Opscode, Inc. 4 | # License:: Apache License, Version 2.0 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # http://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | module Chevre 20 | class Hypervisor 21 | class << self 22 | attr_reader :cores, :cpus, :memory, :mhz, 23 | :model, :nodes, :sockets, :threads, 24 | :capabilities 25 | 26 | def open(uri, options = {}) 27 | options = { "read_only" => true }.merge(options) 28 | if options["read_only"] 29 | @connection = Libvirt::open_read_only(uri) 30 | else 31 | @connection = Libvirt::open(uri) 32 | end 33 | @capabilities = Capabilities.new(@connection.capabilities) 34 | @_node_info = @connection.node_get_info 35 | %w{ cores cpus memory mhz model nodes sockets threads }.each do |a| 36 | instance_variable_set("@#{a}", @_node_info.send(a)) 37 | end 38 | end 39 | 40 | def close 41 | @connection.close 42 | end 43 | 44 | end 45 | end 46 | end 47 | -------------------------------------------------------------------------------- /lib/chevre/capabilities.rb: -------------------------------------------------------------------------------- 1 | # 2 | # Author:: Benjamin Black () 3 | # Copyright:: Copyright (c) 2009 Opscode, Inc. 4 | # License:: Apache License, Version 2.0 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # http://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | module Chevre 20 | class Capabilities 21 | include SerDes 22 | 23 | attr_reader :desc 24 | 25 | def initialize(xml) 26 | @desc = parse_xml_desc(xml)["capabilities"] 27 | end 28 | 29 | def transform_from_hash_desc(hdesc) 30 | # consumes the intermediate form produced by parse_xml_desc 31 | # produces a clean representation for general use 32 | flatten hdesc 33 | end 34 | 35 | def default 36 | { 37 | 'arch' => default_guest["arch"].last["name"], 38 | 'domain' => domain_type, 39 | 'os' => os_type, 40 | 'features' => features 41 | } 42 | end 43 | 44 | def features 45 | default_guest["features"].keys 46 | end 47 | 48 | def default_guest 49 | if desc.is_a?(Array) 50 | desc.each do |d| 51 | if d.keys.first.eql?("guest") 52 | return d.values.first if d.values.first["arch"]["name"].eql?(host_arch) 53 | end 54 | end 55 | else 56 | desc["guest"] 57 | end 58 | end 59 | 60 | def host_arch 61 | desc["host"]["cpu"]["arch"] 62 | end 63 | 64 | def os_type 65 | default_guest["os_type"] 66 | end 67 | 68 | def domain_type 69 | if default_guest["arch"].is_a?(Array) 70 | default_guest["arch"].each do |a| 71 | return a["domain"]["type"] if a.keys.first.eql?("domain") 72 | end 73 | else 74 | default_guest["arch"]["domain"]["type"] 75 | end 76 | end 77 | 78 | end 79 | end 80 | -------------------------------------------------------------------------------- /lib/ser_des.rb: -------------------------------------------------------------------------------- 1 | # 2 | # Author:: Benjamin Black () 3 | # Copyright:: Copyright (c) 2009 Opscode, Inc. 4 | # License:: Apache License, Version 2.0 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # http://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | require 'nokogiri' 20 | 21 | module SerDes 22 | def flatten(hdesc) 23 | hdesc.inject({}) do |memo, kv| 24 | memo[kv[0]] ||= {} 25 | memo[kv[0]].merge(flatten_r(kv[0], kv[1])) 26 | end 27 | end 28 | 29 | def flatten_r(key, hdesc) 30 | if hdesc.is_a?(String) 31 | return { key => hdesc } 32 | end 33 | 34 | if hdesc.is_a?(Array) 35 | ks = (hdesc.map do |m| 36 | m.is_a?(Hash) ? m.keys.first : nil 37 | end).compact 38 | if ks == ks.uniq 39 | # we can safely hashify the array 40 | h = { key => (hdesc.inject({}) do |memo, h| 41 | if h.values.first["_content"].is_a?(String) 42 | memo[h.keys.first] = h.values.first["_content"] 43 | else 44 | memo[h.keys.first] ||= {} 45 | memo.merge!(flatten_r(h.keys.first, h.values.first)) 46 | end 47 | memo 48 | end)} 49 | return h 50 | else 51 | return { key => (hdesc.map do |h| 52 | flatten_r(h.keys.first, h.values.first) 53 | end).compact 54 | } 55 | end 56 | end 57 | 58 | if hdesc.is_a?(Hash) 59 | h = {} 60 | if hdesc.has_key?("_content") 61 | if hdesc["_content"].is_a?(String) 62 | h = { key => hdesc["_content"] } 63 | else 64 | h = flatten_r(key, hdesc["_content"]) 65 | end 66 | end 67 | if hdesc.has_key?("_attributes") 68 | if h.is_a?(Hash) 69 | h[key] ||= {} 70 | if h[key].is_a?(Array) 71 | h[key] << hdesc["_attributes"] 72 | else 73 | h[key].merge!(hdesc["_attributes"]) 74 | end 75 | else 76 | h << hdesc["_attributes"] 77 | end 78 | end 79 | return h 80 | end 81 | end 82 | 83 | def parse_xml_desc(xml) 84 | # consumes the xml_desc blob from libvirt 85 | # produces an intermediate form composed of ruby hashes and arrays 86 | # feeds the intermediate form to a class-specific transform to get to 87 | # the final, clean form for general use. 88 | d = Nokogiri::XML((xml.split("\n").each {|line| line.strip}).join) 89 | transform_from_hash_desc(parse_xml_desc_r(d.root.name, d.root)) 90 | end 91 | 92 | def parse_xml_desc_r(name, xdesc) 93 | h = {} 94 | h["_attributes"] = xdesc.attributes.inject({}) {|memo, kv| memo[kv[0].to_s] = kv[1].to_s; 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