├── .document ├── .gitignore ├── Gemfile ├── Gemfile.lock ├── LICENSE.txt ├── README.rdoc ├── Rakefile ├── VERSION ├── lib ├── virt.rb └── virt │ ├── connection.rb │ ├── guest.rb │ ├── host.rb │ ├── interface.rb │ ├── kvm.rb │ ├── kvm │ ├── guest.rb │ ├── host.rb │ ├── interface.rb │ └── volume.rb │ ├── pool.rb │ ├── util.rb │ ├── vmware.rb │ ├── vmware │ ├── guest.rb │ ├── host.rb │ ├── interface.rb │ └── volume.rb │ └── volume.rb ├── templates ├── kvm │ ├── guest.xml.erb │ └── volume.xml.erb └── vmware │ ├── guest.xml.erb │ └── volume.xml.erb ├── test ├── connection_test.rb ├── guest_test.rb ├── host_test.rb ├── interface_test.rb ├── pool_test.rb ├── test_helper.rb └── volume_test.rb └── virt.gemspec /.document: -------------------------------------------------------------------------------- 1 | lib/**/*.rb 2 | bin/* 3 | - 4 | features/**/*.feature 5 | LICENSE.txt 6 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # rcov generated 2 | coverage 3 | 4 | # rdoc generated 5 | rdoc 6 | 7 | # yard generated 8 | doc 9 | .yardoc 10 | 11 | # bundler 12 | .bundle 13 | 14 | # jeweler generated 15 | pkg 16 | 17 | # Have editor/IDE/OS specific files you need to ignore? Consider using a global gitignore: 18 | # 19 | # * Create a file at ~/.gitignore 20 | # * Include files you want ignored 21 | # * Run: git config --global core.excludesfile ~/.gitignore 22 | # 23 | # After doing this, these files will be ignored in all your git projects, 24 | # saving you from having to 'pollute' every project you touch with them 25 | # 26 | # Not sure what to needs to be ignored for particular editors/OSes? Here's some ideas to get you started. (Remember, remove the leading # of the line) 27 | # 28 | # For MacOS: 29 | # 30 | #.DS_Store 31 | # 32 | # For TextMate 33 | #*.tmproj 34 | #tmtags 35 | # 36 | # For emacs: 37 | #*~ 38 | #\#* 39 | #.\#* 40 | # 41 | # For vim: 42 | #*.swp 43 | -------------------------------------------------------------------------------- /Gemfile: -------------------------------------------------------------------------------- 1 | source "http://rubygems.org" 2 | gem "ruby-libvirt" # to remove once upgrading vir to 0.3 3 | 4 | group :development do 5 | gem "shoulda", ">= 2.11.3" 6 | gem "bundler", "~> 1.0.0" 7 | gem "jeweler", "~> 1.5.2" 8 | gem "rcov", ">= 0.9.8" 9 | end 10 | -------------------------------------------------------------------------------- /Gemfile.lock: -------------------------------------------------------------------------------- 1 | GEM 2 | remote: http://rubygems.org/ 3 | specs: 4 | git (1.2.5) 5 | jeweler (1.5.2) 6 | bundler (~> 1.0.0) 7 | git (>= 1.2.5) 8 | rake 9 | rake (0.8.7) 10 | rcov (0.9.8) 11 | ruby-libvirt (0.4.0) 12 | shoulda (2.11.3) 13 | 14 | PLATFORMS 15 | ruby 16 | 17 | DEPENDENCIES 18 | bundler (~> 1.0.0) 19 | jeweler (~> 1.5.2) 20 | rcov (>= 0.9.8) 21 | ruby-libvirt 22 | shoulda (>= 2.11.3) 23 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.rdoc: -------------------------------------------------------------------------------- 1 | = virt 2 | 3 | Simple to use ruby interface to libvirt. 4 | 5 | Libvirt is located at http://libvirt.org/ruby 6 | 7 | == Contributing 8 | 9 | * Fork the project 10 | * Start a feature/bugfix branch 11 | * Commit and push until you are happy with your contribution 12 | * Make sure to add tests for it. This is important so I don't break it in a future version unintentionally. 13 | * Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it. 14 | 15 | == RDOC 16 | 17 | for full API please visit http://rdoc.info/github/ohadlevy/virt 18 | 19 | == Examples 20 | 21 | === Connectivity Options 22 | uri = "qemu:///system" # libvirt running locally 23 | uri = "qemu:/fqdn//system" # used for QEMU+TLS connection 24 | uri = "qemu+ssh:/user@fqdn//system" # used for SSH connection 25 | uri = "qemu+tcp:/fqdn//system" # used for non secured tcp connection 26 | 27 | ==== Establish the connection 28 | conn = Virt.connect(uri) 29 | 30 | ==== get the hypervisor 31 | host = conn.host 32 | 33 | ==== get the list of running guests 34 | host.running_guests 35 | 36 | ==== get the list of stopped guests 37 | host.defined_guests 38 | 39 | ====or a simple hash of both 40 | host.guests 41 | 42 | ==== create a new guest 43 | 44 | guest=Virt::Guest.new({:name => "test123"}) 45 | guest.vcpu = 2 46 | guest.volume.size = 10 # in GB 47 | 48 | guest.save 49 | guest.start 50 | 51 | puts guest.mac 52 | 53 | guest.shutdown # initiate a shutdown 54 | guest.poweroff # forces a shutdown 55 | Many more options exists, make sure checkout the api/tests 56 | 57 | ==== list of host bridges 58 | host.interfaces # physical interfaces 59 | host.networks # virtual / NAT interfaces 60 | 61 | ==== Storage 62 | 63 | host.storage_pools 64 | 65 | host.volumes 66 | 67 | 68 | 69 | == Copyright 70 | Copyright (c) 2011 Ohad Levy 71 | 72 | This program and entire repository is free software: you can redistribute it and/or modify 73 | it under the terms of the GNU General Public License as published by 74 | the Free Software Foundation, either version 3 of the License, or 75 | any later version. 76 | 77 | This program is distributed in the hope that it will be useful, 78 | but WITHOUT ANY WARRANTY; without even the implied warranty of 79 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 80 | GNU General Public License for more details. 81 | 82 | You should have received a copy of the GNU General Public License 83 | along with this program. If not, see . 84 | -------------------------------------------------------------------------------- /Rakefile: -------------------------------------------------------------------------------- 1 | require 'rubygems' 2 | require 'bundler' 3 | begin 4 | Bundler.setup(:default, :development) 5 | rescue Bundler::BundlerError => e 6 | $stderr.puts e.message 7 | $stderr.puts "Run `bundle install` to install missing gems" 8 | exit e.status_code 9 | end 10 | require 'rake' 11 | require 'jeweler' 12 | Jeweler::Tasks.new do |gem| 13 | # Gem::Specification... see http://docs.rubygems.org/read/chapter/20 14 | gem.name = "virt" 15 | gem.homepage = "https://github.com/ohadlevy/virt" 16 | gem.license = "GPLv3" 17 | gem.summary = %Q{Simple to use ruby interface to libvirt} 18 | gem.description = %Q{Simplied interface to use ruby the libvirt ruby library} 19 | gem.email = "ohadlevy@gmail.com" 20 | gem.authors = ["Ohad Levy"] 21 | 22 | #gem.add_runtime_dependency 'libvirt', '> 0.2.0' 23 | #gem.add_development_dependency 'rspec', '> 1.2.3' 24 | end 25 | Jeweler::RubygemsDotOrgTasks.new 26 | 27 | require 'rake/testtask' 28 | Rake::TestTask.new(:test) do |test| 29 | test.libs << 'lib' << 'test' 30 | test.pattern = 'test/*test*.rb' 31 | test.verbose = true 32 | end 33 | 34 | require 'rcov/rcovtask' 35 | Rcov::RcovTask.new do |test| 36 | test.libs << 'test' 37 | test.pattern = 'test/**/test_*.rb' 38 | test.verbose = true 39 | end 40 | 41 | task :default => :test 42 | 43 | require 'rake/rdoctask' 44 | Rake::RDocTask.new do |rdoc| 45 | version = File.exist?('VERSION') ? File.read('VERSION') : "" 46 | 47 | rdoc.rdoc_dir = 'rdoc' 48 | rdoc.title = "hello-gem #{version}" 49 | rdoc.rdoc_files.include('README*') 50 | rdoc.rdoc_files.include('lib/**/*.rb') 51 | end 52 | 53 | -------------------------------------------------------------------------------- /VERSION: -------------------------------------------------------------------------------- 1 | 0.2.1 2 | -------------------------------------------------------------------------------- /lib/virt.rb: -------------------------------------------------------------------------------- 1 | require 'virt/util' 2 | require 'virt/connection' 3 | require 'virt/host' 4 | require 'virt/guest' 5 | require 'virt/pool' 6 | require 'virt/volume' 7 | require 'virt/interface' 8 | module Virt 9 | 10 | autoload :KVM, "virt/kvm" 11 | autoload :VMWare, "virt/vmware" 12 | class << self 13 | 14 | def connect uri, options = {} 15 | @connection = Virt::Connection.new uri, options 16 | end 17 | 18 | def connection 19 | return @connection if @connection and !@connection.closed? 20 | raise "No Connection or connection has been closed" 21 | end 22 | 23 | end 24 | 25 | end 26 | -------------------------------------------------------------------------------- /lib/virt/connection.rb: -------------------------------------------------------------------------------- 1 | require 'libvirt' 2 | module Virt 3 | class Connection 4 | attr_reader :connection, :type 5 | 6 | def initialize uri, options = {} 7 | raise("Must provide a host to connect to") unless uri 8 | if uri =~ /^(esx|vpx)/ 9 | raise("Must provide a username and password") unless options[:username] or options[:password] 10 | @connection = Libvirt::open_auth(uri, [Libvirt::CRED_AUTHNAME, Libvirt::CRED_PASSPHRASE]) do |cred| 11 | # This may only be required for ESXi connections, not sure. 12 | @type = "VMWare" 13 | case cred['type'] 14 | when ::Libvirt::CRED_AUTHNAME 15 | options[:username] 16 | when ::Libvirt::CRED_PASSPHRASE 17 | options[:password] 18 | end 19 | end 20 | else 21 | @type = "KVM" 22 | @connection = Libvirt::open uri 23 | end 24 | end 25 | 26 | def closed? 27 | connection.closed? 28 | end 29 | 30 | def secure? 31 | connection.encrypted? 32 | end 33 | 34 | def version 35 | connection.libversion 36 | end 37 | 38 | def disconnect 39 | connection.close 40 | end 41 | 42 | def host 43 | case type 44 | when "KVM" 45 | KVM::Host.new 46 | when "VMWare" 47 | VMWare::Host.new 48 | else 49 | raise "Non supported hypervisor" 50 | end 51 | end 52 | 53 | end 54 | end 55 | -------------------------------------------------------------------------------- /lib/virt/guest.rb: -------------------------------------------------------------------------------- 1 | module Virt 2 | class Guest 3 | include Virt::Util 4 | attr_reader :name, :xml_desc, :arch, :current_memory, :type, :boot_device, :machine 5 | attr_accessor :memory, :vcpu, :volume, :interface, :template_path 6 | 7 | def initialize options = {} 8 | @connection = Virt.connection 9 | @name = options[:name] || raise("Must provide a name") 10 | 11 | # If our domain exists, we ignore the provided options and defaults 12 | fetch_guest 13 | @memory ||= options[:memory] || default_memory_size 14 | @vcpu ||= options[:vcpu] || default_vcpu_count 15 | @arch ||= options[:arch] || default_arch 16 | 17 | @template_path = options[:template_path] || default_template_path 18 | end 19 | 20 | def new? 21 | @domain.nil? 22 | end 23 | 24 | def save 25 | @domain = @connection.connection.define_domain_xml(xml) 26 | fetch_info 27 | !new? 28 | end 29 | 30 | def start 31 | raise "Guest not created, can't start" if new? 32 | @domain.create unless running? 33 | running? 34 | end 35 | 36 | def running? 37 | return false if new? 38 | @domain.active? 39 | rescue 40 | # some versions of libvirt do not support checking for active state 41 | @connection.connection.list_domains.each do |did| 42 | return true if @connection.connection.lookup_domain_by_id(did).name == name 43 | end 44 | false 45 | end 46 | 47 | def stop(force=false) 48 | raise "Guest not created, can't stop" if new? 49 | force ? @domain.destroy : @domain.shutdown 50 | !running? 51 | rescue Libvirt::Error 52 | # domain is not running 53 | true 54 | end 55 | 56 | def shutdown 57 | stop 58 | end 59 | 60 | def poweroff 61 | stop(true) 62 | end 63 | 64 | def destroy 65 | return true if new? 66 | stop(true) if running? 67 | @domain = @domain.undefine 68 | new? 69 | end 70 | 71 | def reboot 72 | raise "Guest not running, can't reboot" if new? or !running? 73 | @domain.reboot 74 | end 75 | 76 | def uuid 77 | @domain.uuid unless new? 78 | end 79 | 80 | def to_s 81 | name.to_s 82 | end 83 | 84 | def <=> other 85 | self.name <=> other.name 86 | end 87 | 88 | protected 89 | 90 | def fetch_guest 91 | @domain = @connection.connection.lookup_domain_by_name(name) 92 | fetch_info 93 | rescue Libvirt::RetrieveError 94 | end 95 | 96 | def fetch_info 97 | return if @domain.nil? 98 | @xml_desc = @domain.xml_desc 99 | @memory = @domain.max_memory 100 | @current_memory = document("domain/currentMemory") if running? 101 | @type = document("domain", "type") 102 | @vcpu = document("domain/vcpu") 103 | @arch = document("domain/os/type", "arch") 104 | @machine = document("domain/os/type", "machine") 105 | @boot_device = document("domain/os/boot", "dev") rescue nil 106 | 107 | # do we have a NIC? 108 | network_type = document("domain/devices/interface", "type") rescue nil 109 | 110 | unless network_type.nil? 111 | @interface ||= Interface.new 112 | @interface.type = network_type 113 | @interface.mac = document("domain/devices/interface/mac", "address") 114 | @interface.device = document("domain/devices/interface/source", "bridge") if @interface.type == "bridge" 115 | @interface.network = document("domain/devices/interface/source", "network") if @interface.type == "network" 116 | end 117 | end 118 | 119 | def default_memory_size 120 | 1048576 121 | end 122 | 123 | def default_vcpu_count 124 | 1 125 | end 126 | 127 | def default_arch 128 | "x86_64" 129 | end 130 | 131 | def default_template_path; end 132 | end 133 | end 134 | -------------------------------------------------------------------------------- /lib/virt/host.rb: -------------------------------------------------------------------------------- 1 | module Virt 2 | class Host < Virt::Connection 3 | # Represents a Physical host which runs the libvirt daemon 4 | 5 | attr_reader :connection 6 | def initialize 7 | @connection = Virt.connection.connection 8 | end 9 | 10 | def name 11 | connection.hostname 12 | end 13 | 14 | def guests 15 | {:running => running_guests, :defined => defined_guests} 16 | end 17 | 18 | def running_guests 19 | connection.list_domains.map do |domain| 20 | find_guest_by_id(domain) 21 | end 22 | end 23 | 24 | def defined_guests 25 | connection.list_defined_domains.map do |domain| 26 | find_guest_by_name domain 27 | end 28 | end 29 | def storage_pools 30 | connection.list_storage_pools.map {|p| create_pool({:name => p})} 31 | end 32 | 33 | # Returns a Virt::Pool object based on the pool name 34 | def storage_pool pool 35 | create_pool({:name => pool.is_a?(Libvirt::StoragePool) ? pool.name : pool }) 36 | rescue Libvirt::RetrieveError 37 | end 38 | 39 | # Returns a hash of pools and their volumes objects. 40 | def volumes 41 | pools = {} 42 | storage_pools.each do |storage| 43 | pools[storage.name] = storage.volumes 44 | end 45 | pools 46 | end 47 | 48 | def find_guest_by_name name 49 | if connection.lookup_domain_by_name name 50 | return create_guest({:name => name}) 51 | end 52 | end 53 | 54 | def find_guest_by_id id 55 | Array(id).map do |did| 56 | return create_guest({:name => connection.lookup_domain_by_id(did).name}) 57 | end 58 | end 59 | 60 | protected 61 | 62 | def create_guest opts 63 | Virt::Guest.new opts 64 | end 65 | 66 | def create_pool opts 67 | Virt::Pool.new opts 68 | end 69 | 70 | end 71 | end 72 | -------------------------------------------------------------------------------- /lib/virt/interface.rb: -------------------------------------------------------------------------------- 1 | module Virt 2 | class Interface 3 | attr_accessor :mac, :model, :type, :device, :network 4 | 5 | def initialize options = {} 6 | @connection = Virt.connection 7 | @device = options[:device] || default_device 8 | @type = options[:type] || default_type 9 | @model = options[:model] || default_model 10 | @mac = options[:mac] 11 | @network = options[:network] 12 | end 13 | 14 | def new? 15 | mac.nil? 16 | end 17 | 18 | protected 19 | 20 | # Abstracted methods 21 | def default_device; end 22 | 23 | def default_type; end 24 | 25 | def default_model; end 26 | 27 | end 28 | end 29 | -------------------------------------------------------------------------------- /lib/virt/kvm.rb: -------------------------------------------------------------------------------- 1 | module Virt::KVM 2 | autoload :Host, 'virt/kvm/host.rb' 3 | autoload :Guest, 'virt/kvm/guest.rb' 4 | autoload :Interface, 'virt/kvm/interface.rb' 5 | autoload :Volume, 'virt/kvm/volume.rb' 6 | end 7 | -------------------------------------------------------------------------------- /lib/virt/kvm/guest.rb: -------------------------------------------------------------------------------- 1 | module Virt::KVM 2 | class Guest < Virt::Guest 3 | 4 | def initialize options = {} 5 | super(options) 6 | @volume = Volume.new options 7 | @interface ||= Interface.new options 8 | end 9 | 10 | def arch= value 11 | @arch = value == "i386" ? "i686" : value 12 | end 13 | 14 | 15 | protected 16 | 17 | def default_template_path 18 | "kvm/guest.xml.erb" 19 | end 20 | 21 | end 22 | end 23 | -------------------------------------------------------------------------------- /lib/virt/kvm/host.rb: -------------------------------------------------------------------------------- 1 | module Virt::KVM 2 | class Host < Virt::Host 3 | 4 | # Available libvirt interfaces, excluding lo 5 | def interfaces 6 | connection.list_interfaces.delete_if{|i| i == "lo"}.sort 7 | rescue => e 8 | raise "This function is not supported by the hypervisor: #{e}" 9 | end 10 | 11 | def interface iface 12 | connection.lookup_interface_by_name(iface) 13 | end 14 | 15 | # libvirt internal networks 16 | def networks 17 | connection.list_networks.map do |network| 18 | connection.lookup_network_by_name(network).bridge_name 19 | end 20 | end 21 | 22 | def create_guest opts 23 | Virt::KVM::Guest.new opts 24 | end 25 | 26 | end 27 | 28 | end 29 | -------------------------------------------------------------------------------- /lib/virt/kvm/interface.rb: -------------------------------------------------------------------------------- 1 | module Virt::KVM 2 | class Interface < Virt::Interface 3 | 4 | protected 5 | 6 | def default_template_path 7 | "kvm/guest.xml.erb" 8 | end 9 | 10 | def default_device 11 | @connection.host.interfaces.first 12 | rescue 13 | "br0" 14 | end 15 | 16 | def default_type 17 | "bridge" 18 | end 19 | 20 | def default_model 21 | "virtio" 22 | end 23 | 24 | end 25 | end 26 | -------------------------------------------------------------------------------- /lib/virt/kvm/volume.rb: -------------------------------------------------------------------------------- 1 | module Virt::KVM 2 | class Volume < Virt::Volume 3 | 4 | def default_type 5 | "raw" 6 | end 7 | 8 | def default_template_path 9 | "kvm/volume.xml.erb" 10 | end 11 | 12 | def path 13 | "#{pool.path}/#{name}" 14 | end 15 | 16 | def name= name 17 | super name 18 | @name += ".img" unless name.match(/.*\.img$/) 19 | end 20 | 21 | 22 | end 23 | end 24 | -------------------------------------------------------------------------------- /lib/virt/pool.rb: -------------------------------------------------------------------------------- 1 | module Virt 2 | # implements Libvirt pool, at the moment it is assumed to be a file based pool. 3 | class Pool 4 | include Virt::Util 5 | attr_reader :name 6 | def initialize options = {} 7 | @name = options[:name] || raise("Must Provide a pool name") 8 | @connection = Virt.connection 9 | fetch_pool 10 | end 11 | 12 | alias :to_s :name 13 | 14 | def save 15 | raise "not implemented" 16 | end 17 | 18 | def new? 19 | @pool.nil? 20 | end 21 | 22 | def volumes 23 | @pool.list_volumes 24 | end 25 | 26 | %w{name key path}.each do |method| 27 | define_method "find_volume_by_#{method}" do |value| 28 | begin 29 | @pool.send("lookup_volume_by_#{method}", value) 30 | rescue Libvirt::RetrieveError 31 | end 32 | end 33 | end 34 | 35 | def path 36 | document "pool/target/path" 37 | end 38 | 39 | def create_vol vol 40 | raise "Must provide a Virt::Volume object" unless vol.is_a?(Virt::Volume) 41 | raise "Pool not saved, cant create volume" if new? 42 | @pool.create_vol_xml vol.xml 43 | end 44 | 45 | private 46 | 47 | def fetch_pool 48 | if @pool = @connection.connection.lookup_storage_pool_by_name(name) 49 | @xml_desc = @pool.xml_desc 50 | end 51 | end 52 | end 53 | end 54 | -------------------------------------------------------------------------------- /lib/virt/util.rb: -------------------------------------------------------------------------------- 1 | require "rexml/document" 2 | require 'erb' 3 | 4 | module Virt 5 | module Util 6 | # return templated xml to be used by libvirt 7 | def xml 8 | ERB.new(template, nil, '-').result(binding) 9 | end 10 | 11 | def to_gb bytes 12 | bytes.to_i / 1073741824 13 | end 14 | 15 | private 16 | # template file that contain our xml template 17 | def template 18 | File.read("#{File.dirname(__FILE__)}/../../templates/#{template_path}") 19 | rescue => e 20 | warn "failed to read template #{template_path}: #{e}" 21 | end 22 | 23 | # finds a value from xml 24 | def document path, attribute=nil 25 | return nil if new? 26 | xml = REXML::Document.new(@xml_desc) 27 | attribute.nil? ? xml.elements[path].text : xml.elements[path].attributes[attribute] 28 | end 29 | end 30 | end 31 | -------------------------------------------------------------------------------- /lib/virt/vmware.rb: -------------------------------------------------------------------------------- 1 | module Virt::VMWare 2 | autoload :Host, 'virt/vmware/host.rb' 3 | autoload :Guest, 'virt/vmware/guest.rb' 4 | autoload :Interface, 'virt/vmware/interface.rb' 5 | autoload :Volume, 'virt/vmware/volume.rb' 6 | end 7 | -------------------------------------------------------------------------------- /lib/virt/vmware/guest.rb: -------------------------------------------------------------------------------- 1 | module Virt::VMWare 2 | class Guest < Virt::Guest 3 | 4 | def initialize options = {} 5 | super(options) 6 | @volume = Volume.new options 7 | @interface ||= Interface.new options 8 | end 9 | 10 | protected 11 | 12 | def default_template_path 13 | "vmware/guest.xml.erb" 14 | end 15 | 16 | end 17 | end 18 | -------------------------------------------------------------------------------- /lib/virt/vmware/host.rb: -------------------------------------------------------------------------------- 1 | module Virt::VMWare 2 | class Host < Virt::Host 3 | 4 | # Available libvirt interfaces, excluding lo 5 | def interfaces 6 | connection.list_interfaces.delete_if{|i| i == "lo"}.sort 7 | rescue => e 8 | raise "This function is not supported by the hypervisor: #{e}" 9 | end 10 | 11 | def interface iface 12 | connection.lookup_interface_by_name(iface) 13 | end 14 | 15 | # libvirt internal networks 16 | def networks 17 | connection.list_networks.map do |network| 18 | connection.lookup_network_by_name(network).bridge_name 19 | end 20 | end 21 | 22 | def create_guest opts 23 | Virt::VMWare::Guest.new opts 24 | end 25 | 26 | end 27 | 28 | end 29 | -------------------------------------------------------------------------------- /lib/virt/vmware/interface.rb: -------------------------------------------------------------------------------- 1 | module Virt::VMWare 2 | class Interface < Virt::Interface 3 | 4 | protected 5 | 6 | def default_template_path 7 | "vmware/guest.xml.erb" 8 | end 9 | 10 | def default_device 11 | @connection.host.interfaces.first 12 | rescue 13 | "VM Network" 14 | end 15 | 16 | def default_type 17 | "bridge" 18 | end 19 | 20 | def default_model 21 | "e1000" 22 | end 23 | 24 | end 25 | end 26 | -------------------------------------------------------------------------------- /lib/virt/vmware/volume.rb: -------------------------------------------------------------------------------- 1 | module Virt::VMWare 2 | class Volume < Virt::Volume 3 | 4 | def default_type 5 | "raw" 6 | end 7 | 8 | def default_template_path 9 | "vmware/volume.xml.erb" 10 | end 11 | 12 | def path 13 | "[#{pool.name}] #{self}" 14 | end 15 | 16 | def name= name 17 | super name 18 | @name += ".vmdk" unless name.match(/.*\.vmdk$/) 19 | end 20 | 21 | def to_s 22 | "#{title}/#{name}" 23 | end 24 | 25 | private 26 | 27 | def title 28 | name.chomp(".vmdk") 29 | end 30 | 31 | end 32 | end 33 | -------------------------------------------------------------------------------- /lib/virt/volume.rb: -------------------------------------------------------------------------------- 1 | module Virt 2 | class Volume 3 | include Virt::Util 4 | attr_reader :name, :pool, :type, :allocated_size, :size, :template_path, :key, :xml_desc 5 | 6 | def initialize options = {} 7 | @connection = Virt.connection 8 | self.name = options[:name] || raise("Volume requires a name") 9 | # If our volume already exists, we ignore the provided options and defaults 10 | @pool = options[:pool].nil? ? default_pool : @connection.host.storage_pool(options[:pool]) 11 | fetch_volume 12 | @type ||= options[:type] || default_type 13 | @allocated_size ||= options[:allocated_size] || default_allocated_size 14 | @template_path ||= options[:template_path] || default_template_path 15 | @size ||= options[:size] || default_size 16 | end 17 | 18 | def new? 19 | @vol.nil? 20 | end 21 | 22 | def save 23 | raise "volume already exists, can't save" unless new? 24 | #validations 25 | #update? 26 | @vol=pool.create_vol(self) 27 | !new? 28 | end 29 | 30 | def destroy 31 | return true if new? 32 | @vol.delete 33 | fetch_volume 34 | new? 35 | end 36 | 37 | def path; end 38 | 39 | protected 40 | 41 | def name= name 42 | raise "invalid name" if name.nil? 43 | @name = name 44 | end 45 | 46 | def default_allocated_size 47 | 0 48 | end 49 | 50 | # default image size in GB 51 | def default_size 52 | 8 53 | end 54 | def fetch_volume 55 | return unless @vol = pool.find_volume_by_name(name) 56 | @size = to_gb(@vol.info.capacity) 57 | @allocated_size = to_gb(@vol.info.allocation) 58 | end 59 | 60 | def default_pool 61 | # this is an expensive call on hosts with lots of pools 62 | @connection.host.storage_pools.first 63 | end 64 | 65 | # abstracted methods 66 | 67 | def default_type; end 68 | 69 | def default_template_path; end 70 | end 71 | end 72 | -------------------------------------------------------------------------------- /templates/kvm/guest.xml.erb: -------------------------------------------------------------------------------- 1 | 2 | <%= name %> 3 | <%- if uuid -%> 4 | <%= uuid %> 5 | <%- end -%> 6 | <%= memory %> 7 | <%= memory %> 8 | <%= vcpu %> 9 | 10 | hvm 11 | 12 | <%- if volume -%> 13 | 14 | <%- end -%> 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | destroy 23 | restart 24 | restart 25 | 26 | <%- if volume -%> 27 | 28 | 29 | 30 | 31 | 32 | <%- end -%> 33 | <%- if interface -%> 34 | 35 | <%- if interface.mac -%> 36 | 37 | <%- end -%> 38 | ='<%= interface.device %>'/> 39 | 40 | 41 | <%- end -%> 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 53 | 54 | 55 | -------------------------------------------------------------------------------- /templates/kvm/volume.xml.erb: -------------------------------------------------------------------------------- 1 | 2 | <%= name %> 3 | <%= allocated_size %> 4 | <%= size %> 5 | 6 | <%= path %> 7 | 8 | 9 | -------------------------------------------------------------------------------- /templates/vmware/guest.xml.erb: -------------------------------------------------------------------------------- 1 | 2 | <%= name %> 3 | <%- if uuid -%> 4 | <%= uuid %> 5 | <%- end -%> 6 | <%= memory %> 7 | <%= memory %> 8 | <%= vcpu %> 9 | 10 | hvm 11 | 12 | <%- if volume -%> 13 | 14 | <%- end -%> 15 | 16 | 17 | 18 | <%- if volume -%> 19 | 20 | 21 | 22 |
23 | 24 | <%- end -%> 25 | 26 | <%- if interface -%> 27 | 28 | <%- if interface.mac -%> 29 | 30 | <%- end -%> 31 | ='<%= interface.device %>'/> 32 | 33 | 34 | <%- end -%> 35 | 36 | 37 | 40 | 41 | 42 | -------------------------------------------------------------------------------- /templates/vmware/volume.xml.erb: -------------------------------------------------------------------------------- 1 | 2 | <%= to_s %> 3 | <%= allocated_size %> 4 | <%= size %> 5 | 6 | <%= path %> 7 | 8 | 9 | 00 10 | 0 11 | 0 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /test/connection_test.rb: -------------------------------------------------------------------------------- 1 | require 'test/test_helper' 2 | 3 | class Virt::ConnectionTest < Test::Unit::TestCase 4 | 5 | def setup 6 | hostname = "h01.sat.lab" 7 | uri = "qemu+ssh://root@#{hostname}/system" 8 | @conn = Virt.connect uri 9 | end 10 | 11 | def test_should_be_able_to_connect 12 | assert !@conn.closed? 13 | end 14 | 15 | def test_should_be_able_to_disconnect 16 | @conn.disconnect 17 | assert @conn.closed? 18 | end 19 | 20 | def test_should_return_a_version 21 | assert @conn.version 22 | end 23 | 24 | end 25 | -------------------------------------------------------------------------------- /test/guest_test.rb: -------------------------------------------------------------------------------- 1 | require 'test/test_helper' 2 | 3 | class Virt::GuestTest < Test::Unit::TestCase 4 | 5 | def setup 6 | hostname = "h02.sat.lab" 7 | uri = "qemu+ssh://root@#{hostname}/system" 8 | Virt.connect(uri) 9 | @guest = Virt::KVM::Guest.new({:name => "test-host-#{Time.now.to_i}"}) 10 | end 11 | 12 | def teardown 13 | @guest.destroy 14 | Virt.connection.disconnect unless Virt.connection.closed? 15 | end 16 | 17 | def test_should_be_new 18 | assert @guest.new? 19 | assert @guest.interface.new? 20 | assert_nil @guest.interface.mac 21 | end 22 | 23 | def test_should_be_able_to_save 24 | assert @guest.save 25 | assert !@guest.interface.new? 26 | assert_not_nil @guest.interface.mac 27 | end 28 | 29 | def test_should_be_able_to_save_32bit_guest 30 | @guest.arch = "i386" 31 | assert_equal @guest.arch, "i686" 32 | assert @guest.save 33 | assert !@guest.interface.new? 34 | assert_not_nil @guest.interface.mac 35 | end 36 | 37 | def test_should_be_able_to_destroy 38 | assert @guest.save 39 | assert @guest.destroy 40 | end 41 | 42 | def test_should_be_able_to_save_and_start 43 | @guest = Virt::KVM::Guest.new({:name => "test-host-#{Time.now.to_i}", :device => "br180"}) 44 | assert @guest.volume.save 45 | assert @guest.save 46 | assert @guest.start 47 | assert @guest.poweroff 48 | assert @guest.volume.destroy 49 | assert @guest.destroy 50 | end 51 | 52 | end 53 | -------------------------------------------------------------------------------- /test/host_test.rb: -------------------------------------------------------------------------------- 1 | require 'test/test_helper' 2 | 3 | class Virt::HostTest < Test::Unit::TestCase 4 | 5 | def setup 6 | hostname = "h01.sat.lab" 7 | uri = "qemu+ssh://root@#{hostname}/system" 8 | @host = Virt.connect(uri).host 9 | end 10 | 11 | def test_should_have_a_name 12 | assert_kind_of String, @host.name 13 | end 14 | 15 | def test_should_return_running_guests 16 | assert_kind_of Virt::Guest, @host.running_guests.first 17 | end 18 | 19 | def test_should_return_defined_guests 20 | assert_kind_of Virt::Guest, @host.defined_guests.first 21 | end 22 | 23 | def test_should_return_interfaces 24 | assert @host.interfaces 25 | end 26 | 27 | def test_should_return_networks 28 | assert @host.networks 29 | end 30 | 31 | def test_should_return_a_storage_pool 32 | assert_kind_of Virt::Pool, @host.storage_pool("default") 33 | end 34 | 35 | def test_should_return_storage_pools 36 | assert @host.storage_pools 37 | end 38 | 39 | def test_should_return_volumes 40 | assert @host.volumes 41 | end 42 | 43 | end 44 | -------------------------------------------------------------------------------- /test/interface_test.rb: -------------------------------------------------------------------------------- 1 | require 'test/test_helper' 2 | 3 | class Virt::InterfaceTest < Test::Unit::TestCase 4 | 5 | def setup 6 | hostname = "h01.sat.lab" 7 | uri = "qemu+ssh://root@#{hostname}/system" 8 | Virt.connect(uri) 9 | @interface = Virt::Interface.new() 10 | end 11 | 12 | def test_should_be_new 13 | assert @interface.new? 14 | end 15 | 16 | end 17 | -------------------------------------------------------------------------------- /test/pool_test.rb: -------------------------------------------------------------------------------- 1 | require 'test/test_helper' 2 | 3 | class Virt::PoolTest < Test::Unit::TestCase 4 | 5 | def setup 6 | hostname = "h01.sat.lab" 7 | uri = "qemu+ssh://root@#{hostname}/system" 8 | host = Virt.connect(uri).host 9 | @pool = Virt::Pool.new({:name => host.storage_pools.first.name}) 10 | end 11 | 12 | def test_pool_should_not_be_new 13 | assert !@pool.new? 14 | end 15 | 16 | def test_pool_should_have_volumes 17 | assert @pool.volumes 18 | end 19 | 20 | def test_find_vol_by_name 21 | assert_kind_of Libvirt::StorageVol, @pool.find_volume_by_name(@pool.volumes.first) 22 | end 23 | 24 | def test_should_not_find_unknown_volumes 25 | assert !@pool.find_volume_by_name("no such name") 26 | end 27 | 28 | def test_find_vol_by_key 29 | vol = @pool.find_volume_by_name(@pool.volumes.first) 30 | new_vol = @pool.find_volume_by_key(vol.key) 31 | # we cant compare the object themselfs, as libvirt returns a new object each time. 32 | assert_equal vol.key, new_vol.key 33 | end 34 | 35 | end 36 | -------------------------------------------------------------------------------- /test/test_helper.rb: -------------------------------------------------------------------------------- 1 | $LOAD_PATH.unshift *Dir["#{File.dirname(__FILE__)}/../lib"] 2 | require "test/unit" 3 | require "virt" 4 | -------------------------------------------------------------------------------- /test/volume_test.rb: -------------------------------------------------------------------------------- 1 | require 'test/test_helper' 2 | 3 | class Virt::VolumeTest < Test::Unit::TestCase 4 | 5 | def setup 6 | hostname = "h01.sat.lab" 7 | uri = "qemu+ssh://root@#{hostname}/system" 8 | Virt.connect(uri) 9 | @vol = Virt::KVM::Volume.new({:name => "mytestvol-#{Time.now}"}) 10 | end 11 | 12 | def test_should_be_new 13 | assert @vol.new? 14 | end 15 | 16 | def test_should_create_volume 17 | assert @vol.save 18 | @vol.destroy 19 | end 20 | 21 | def test_should_destroy_volume 22 | assert @vol.save 23 | assert @vol.destroy 24 | end 25 | 26 | 27 | 28 | end 29 | -------------------------------------------------------------------------------- /virt.gemspec: -------------------------------------------------------------------------------- 1 | # Generated by jeweler 2 | # DO NOT EDIT THIS FILE DIRECTLY 3 | # Instead, edit Jeweler::Tasks in Rakefile, and run 'rake gemspec' 4 | # -*- encoding: utf-8 -*- 5 | 6 | Gem::Specification.new do |s| 7 | s.name = "virt" 8 | s.version = "0.2.1" 9 | 10 | s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version= 11 | s.authors = ["Ohad Levy"] 12 | s.date = "2012-01-22" 13 | s.description = "Simplied interface to use ruby the libvirt ruby library" 14 | s.email = "ohadlevy@gmail.com" 15 | s.extra_rdoc_files = [ 16 | "LICENSE.txt", 17 | "README.rdoc" 18 | ] 19 | s.files = [ 20 | ".document", 21 | "Gemfile", 22 | "Gemfile.lock", 23 | "LICENSE.txt", 24 | "README.rdoc", 25 | "Rakefile", 26 | "VERSION", 27 | "lib/virt.rb", 28 | "lib/virt/connection.rb", 29 | "lib/virt/guest.rb", 30 | "lib/virt/host.rb", 31 | "lib/virt/interface.rb", 32 | "lib/virt/kvm.rb", 33 | "lib/virt/kvm/guest.rb", 34 | "lib/virt/kvm/host.rb", 35 | "lib/virt/kvm/interface.rb", 36 | "lib/virt/kvm/volume.rb", 37 | "lib/virt/pool.rb", 38 | "lib/virt/util.rb", 39 | "lib/virt/vmware.rb", 40 | "lib/virt/vmware/guest.rb", 41 | "lib/virt/vmware/host.rb", 42 | "lib/virt/vmware/interface.rb", 43 | "lib/virt/vmware/volume.rb", 44 | "lib/virt/volume.rb", 45 | "templates/kvm/guest.xml.erb", 46 | "templates/kvm/volume.xml.erb", 47 | "templates/vmware/guest.xml.erb", 48 | "templates/vmware/volume.xml.erb", 49 | "test/connection_test.rb", 50 | "test/guest_test.rb", 51 | "test/host_test.rb", 52 | "test/interface_test.rb", 53 | "test/pool_test.rb", 54 | "test/test_helper.rb", 55 | "test/volume_test.rb", 56 | "virt.gemspec" 57 | ] 58 | s.homepage = "https://github.com/ohadlevy/virt" 59 | s.licenses = ["GPLv3"] 60 | s.require_paths = ["lib"] 61 | s.rubygems_version = "1.8.11" 62 | s.summary = "Simple to use ruby interface to libvirt" 63 | s.test_files = [ 64 | "test/connection_test.rb", 65 | "test/guest_test.rb", 66 | "test/host_test.rb", 67 | "test/interface_test.rb", 68 | "test/pool_test.rb", 69 | "test/test_helper.rb", 70 | "test/volume_test.rb" 71 | ] 72 | 73 | if s.respond_to? :specification_version then 74 | s.specification_version = 3 75 | 76 | if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then 77 | s.add_runtime_dependency(%q, [">= 0"]) 78 | s.add_development_dependency(%q, [">= 2.11.3"]) 79 | s.add_development_dependency(%q, ["~> 1.0.0"]) 80 | s.add_development_dependency(%q, ["~> 1.5.2"]) 81 | s.add_development_dependency(%q, [">= 0.9.8"]) 82 | else 83 | s.add_dependency(%q, [">= 0"]) 84 | s.add_dependency(%q, [">= 2.11.3"]) 85 | s.add_dependency(%q, ["~> 1.0.0"]) 86 | s.add_dependency(%q, ["~> 1.5.2"]) 87 | s.add_dependency(%q, [">= 0.9.8"]) 88 | end 89 | else 90 | s.add_dependency(%q, [">= 0"]) 91 | s.add_dependency(%q, [">= 2.11.3"]) 92 | s.add_dependency(%q, ["~> 1.0.0"]) 93 | s.add_dependency(%q, ["~> 1.5.2"]) 94 | s.add_dependency(%q, [">= 0.9.8"]) 95 | end 96 | end 97 | 98 | --------------------------------------------------------------------------------