Quickly run Ubuntu cloud images locally using uvtool
We have long been able to test Ubuntu isos very easily by using ‘testdrive’. It syncs releases/architectures you are interested in and starts them in kvm. Very nice. But nowadays, in addition to the isos, we also distribute cloud images. They are the basis for cloud instances and ubuntu-cloud containers, but starting a local vm based on them took some manual steps. Now you can use ‘uvtool’ to easi
libvirt defaults (and openvswitch bridge performance)
The libvirt-bin package in Ubuntu installs a default NATed virtual network, virbr0. This isn’t always the best choice for everyone, however it “just works†everywhere. It also provides some simple protection – the VMs aren’t exposed on the network for all attackers to see. Two alternatives are sometimes suggested. One is to simply default to a non-NATed bridge. The biggest reason we can’t do this
仮想化ライブラリ「libvirt 1.0.4ã€ãƒªãƒªãƒ¼ã‚¹ã€QEMUã§iSCSIパススルーをサãƒãƒ¼ãƒˆ | OSDN Magazine
libvirtã¯KVMã‚„QEMUã€Xenã€LXCã¨ã„ã£ãŸä»®æƒ³åŒ–ソフトウェアをæ“作ã™ã‚‹ãŸã‚ã®çµ±ä¸€çš„ãªAPIã‚’æä¾›ã™ã‚‹ãƒ©ã‚¤ãƒ–ラリ。米Red Hatã®é–‹ç™ºè€…ãŒé–‹å§‹ã—ãŸã€‚Cã§å®Ÿè£…ã•ã‚Œã¦ãŠã‚Šã€KVM/QEMUã‚„Xenã€LXCã®ã»ã‹VirtualBoxã‚„VMwareã€Microsoft Hyper-Vãªã©å¤šæ•°ã®ãƒã‚¤ãƒ‘ーãƒã‚¤ã‚¶ãƒ¼ã‚’サãƒãƒ¼ãƒˆã™ã‚‹ã€‚DMTF（Distributed Management Task Force）ã®ä»®æƒ³åŒ–技術å‘ã‘Common Information Model（CIM）プãƒãƒã‚¤ãƒ€ã‚„AMQP（Advanced Message Queuing Protocol）ã«ã‚ˆã‚‹ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ãƒ³ã‚°ã‚¨ãƒ¼ã‚¸ã‚§ãƒ³ãƒˆãªã©ã‚’å‚™ãˆã€ä»®æƒ³ãƒžã‚·ãƒ³ã€ä»®æƒ³ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã€ä»®æƒ³ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚’管ç†ã™ã‚‹ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã‚’æä¾›ã™ã‚‹ã€‚ライセンスã¯LGPL。 ãƒãƒ¼ã‚¸ãƒ§ãƒ³1.0.4ã¯ã€2012å¹´11月ã«ãƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸ1.0ã®ãƒžã‚¤ãƒŠãƒ¼ã‚¢ãƒƒ
libvirtã§è‰²ã€…ãªä»®æƒ³NICã®è¨å®šã‚’使ã„分ã‘ã‚‹ - syuu1228's blog
virtio-netã¨vhost-net å‚考：CentOS 6 - KVM - Enable vhost-net : Server World modprobe vhost_net VM起動時ã¾ã§ã«vhost_netãŒãƒãƒ¼ãƒ‰ã•ã‚Œã¦ã„ã‚‹ã¨vhost-netã§ã€ãƒãƒ¼ãƒ‰ã•ã‚Œã¦ã„ãªã„ã¨virtio-netã§èµ·å‹•ã™ã‚‹æ¨¡æ§˜ã€‚ ps ax|grep vhost ã¨ã‹ã‚„ã‚‹ã¨ã€vhost-netãŒæœ‰åŠ¹ãªKVMプãƒã‚»ã‚¹ã¯å¼•æ•°ã«vhost=onãŒå…¥ã£ã¦ã„ã‚‹ã®ã§è¦‹åˆ†ã‘られる。 tap å‚考:libvirt: Domain XML format typeãŒbridgeã‹networkã«ãªã£ã¦ã„る。 標準的ãªæ§‹æˆã€‚ <interface type='bridge'> <mac address='52:54:00:94:9a:a0'/> <source bridge='br0'/> <model type='virt
Fedora14ã§KVM (ãã®2：仮想マシンã®ä½œæˆ) — plone
KVMã§ä»®æƒ³ãƒžã‚·ãƒ³ã‚’作æˆã™ã‚‹ã€‚ 仮想マシンã¯ã€virt-manager を使ã£ã¦ä½œæˆã—。 仮想マシンイメージã¯LVM上ã«ä½œæˆã™ã‚‹ã€‚ LVMを使ã†äº‹ã§ã€ LVMã®ã‚¹ãƒŠãƒƒãƒ—ショット機能を使ã£ãŸä»®æƒ³ãƒžã‚·ãƒ³ã‚¤ãƒ¡ãƒ¼ã‚¸ã®ãƒãƒƒã‚¯ã‚¢ãƒƒãƒ—ãŒè¡Œãˆã‚‹ ファイルシステム上ã«ä»®æƒ³ãƒžã‚·ãƒ³ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ç½®ã(ファイルシステムを２回経由ã™ã‚‹)よりオーãƒãƒ˜ãƒƒãƒ‰ãŒå°‘ãªã„(ã¯ãš) iostatã§åˆ¥ãƒ‡ãƒã‚¤ã‚¹ã¨ã—ã¦è¡¨ç¤ºã•ã‚Œã‚‹ã®ã§(iostat -N) ボトルãƒãƒƒã‚¯ã®ç‰¹å®šãŒå®¹æ˜“ ã¨ã„ã£ãŸãƒ¡ãƒªãƒƒãƒˆãŒã‚ã‚Šã¾ã™ã€‚ ã¾ã™ã¯ã€LVMã®æº–å‚™ ホストã®èªè˜ã—ã¦ã„ã‚‹Physical Volumeを確èªã™ã‚‹ Physical Volumeã¯ç‰©ç†Diskã®LUNã«ï¼‘対１ã§å¯¾å¿œã™ã‚‹ã€‚ ã‚‚ã—仮想マシン用ã«ä½¿ãˆã‚‹Physical VolumeãŒç„¡ã„å ´åˆã¯pvcreateコマンドã§ä½œæˆã™ã‚‹ã€‚ # pvscan PV /dev/sda4 VG VMVolGrou
rubyã§libvirt APIを使ã£ã¦ã¿ã‚‹ - ç†æƒ³æœªæ¥ã£ã¦ãªã‚“ã‚„ãã‚“
ruby-libvirtã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ãŒã§ããŸã®ã§ã€å®Ÿéš›ã«ä½¿ã£ã¦ã¿ã¾ã—ãŸã€‚ 実装ã•ã‚Œã¦ã„るメソッドを調ã¹ã‚‹ rubyã§å‹•ã‹ã™æƒ…å ±ãŒã¾ã å°‘ãªãã€ä½•ãŒã©ã†å‡ºæ¥ã‚‹ã‹åˆ†ã‹ã‚‰ãªã„ã®ã§ã€ã¨ã‚Šã‚ãˆãšãƒ¡ã‚½ãƒƒãƒ‰ã®ä¸€è¦§ã‚’å–å¾—ã—ã¦ã¿ã¾ã—ãŸã€‚ 以下ã®ã‚³ãƒ¼ãƒ‰ã‚’getmethods.rbã¨ã‹é©å½“ã«åå‰ã‚’ã¤ã‘ã¦ä¿å˜ã—ã¾ã™ã€‚ require 'libvirt' conn = Libvirt::open("qemu:///system") obj_methods = Object::methods conn.methods.each{|conn_method| puts conn_method if obj_methods.index(conn_method) == nil } 実行ã—ã¦ã¿ã¾ã™ã€‚ sudo ruby getmethods.rb çµæžœ ã©ã®ã‚ˆã†ãªãƒ¡ã‚½ãƒƒãƒ‰ãŒå˜åœ¨ã™ã‚‹ã‹åˆ†ã‹ã‚Šã¾ã—ãŸã€‚ num_of_defined
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http://events.linuxfoundation.jp/sites/events/files/slides/LXCF_LinuxCon2014_1_0.pdf
Easier creation of libvirt lxc containers
kazu memo@GD(2011-04-28)
[Devel] An introduction to libvirt's LXC (LinuX Container) support
IBM Developer
ツール：Archipel（20100309-3） | virtualization.info
IBM Developer
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