@@ -2,14 +2,21 @@ Capistrano::Configuration.instance(:must_exist).load do namespace :deprec do namespace :xen do + + desc "Install Xen" + task :install, :roles => :dom0 do + install_deps + enable_hardy_domu + end - # Config variables for migration - default(:xen_slice) { Capistrano::CLI.ui.ask("Slice name") } - default(:xen_old_host) { Capistrano::CLI.ui.ask("Old Xen host") } - default(:xen_new_host) { Capistrano::CLI.ui.ask("New Xen host") } - set(:xen_disk_size) { Capistrano::CLI.ui.ask("Disk size (GB)") } - set(:xen_swap_size) { Capistrano::CLI.ui.ask("Swap size (GB)") } + task :install_deps, :roles => :dom0 do + # for amd64 version of ubuntu 7.10 + apt.install( {:base => %w(linux-image-xen bridge-utils libxen3.1 python-xen-3.1 xen-docs-3.1 xen-hypervisor-3.1 xen-ioemu-3.1 xen-tools xen-utils-3.1 lvm2)}, :stable ) + # alternatively, for x86 version of ubuntu: + # apt-get install ubuntu-xen-server libc6-xen + end + # Includes some hacks to get xen-tools working on Ubuntu gutsy # ref: http://www.eadz.co.nz/blog/article/xen-gutsy.html SYSTEM_CONFIG_FILES[:xen] = [ @@ -53,20 +60,7 @@ Capistrano::Configuration.instance(:must_exist).load do :owner => 'root:root'} ] - - desc "Install Xen" - task :install, :roles => :dom0 do - install_deps - enable_hardy_domu - end - - task :install_deps, :roles => :dom0 do - # for amd64 version of ubuntu 7.10 - apt.install( {:base => %w(linux-image-xen bridge-utils libxen3.1 python-xen-3.1 xen-docs-3.1 xen-hypervisor-3.1 xen-ioemu-3.1 xen-tools xen-utils-3.1 lvm2)}, :stable ) - # alternatively, for x86 version of ubuntu: - # apt-get install ubuntu-xen-server libc6-xen - end - + desc "Generate configuration file(s) for Xen from template(s)" task :config_gen do SYSTEM_CONFIG_FILES[:xen].each do |file| @@ -113,6 +107,16 @@ Capistrano::Configuration.instance(:must_exist).load do sudo "xm info" end + # Handy commands for migrating a slice between servers + # Not as fast and effortless as I had hoped! -Mike + + # Config variables for migration + default(:xen_slice) { Capistrano::CLI.ui.ask("Slice name") } + default(:xen_old_host) { Capistrano::CLI.ui.ask("Old Xen host") } + default(:xen_new_host) { Capistrano::CLI.ui.ask("New Xen host") } + set(:xen_disk_size) { Capistrano::CLI.ui.ask("Disk size (GB)") } + set(:xen_swap_size) { Capistrano::CLI.ui.ask("Swap size (GB)") } + desc "Migrate a slice on one Xen host to another. Slice is stopped, disk is tar'd up and transferred to new host." task :migrate do @@ -125,7 +129,6 @@ Capistrano::Configuration.instance(:must_exist).load do build_slice_from_tarball end - task :copy_disk do mnt_dir = "/mnt/#{xen_slice}-disk" tarball = "/tmp/#{xen_slice}-disk.tar" @@ -179,6 +182,8 @@ Capistrano::Configuration.instance(:must_exist).load do sudo "umount #{mnt_dir}", :hosts => xen_new_host sudo "rmdir #{mnt_dir}", :hosts => xen_new_host end + # + # end of migration tasks desc "Enable hardy heron domU's on gutsy dom0" task :enable_hardy_domu, :roles => :dom0 do lib/deprec/recipes/xen.rb 6cd634f62deae5ac20978d85991a22cca9bed110 Mike Bailey mike@bailey.net.au http://github.com/mbailey/deprec/commit/d221905573969c8cdb40b8a8637d4cd5244d3e22 d221905573969c8cdb40b8a8637d4cd5244d3e22 2008-08-29T08:02:47-07:00 2008-08-29T08:02:47-07:00 Rearranged task order 59399c27bb396010f91028dec0a0e8823631b763 Mike Bailey mike@bailey.net.au