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# Copyright (C) 2008 Red Hat, Inc
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# a long with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
require 'yaml'
require 'fileutils'
require 'rubygems'
require 'picnic'
require 'reststop'
require 'restr'
require 'xmlrpc/client'
require 'sqlite3'
require 'open3'
require 'cloudmasterd/syncer'
require 'date'
Camping.goes :Cloudmasterd
Cloudmasterd.picnic!
module Cloudmasterd::Helpers
class Cobblerd
def initialize(repo)
@repo = repo
@xmlrpc = XMLRPC::Client.new2("http://#{@repo}/cobbler_api_rw")
@token = @xmlrpc.call2("login", "cobbler", "password")[1]
end
def _call(method, *args)
return @xmlrpc.call2(method, *args)[1]
end
def distros
_call("get_distros", @token)
end
def profiles
_call("get_profiles", @token)
end
def systems
_call("get_systems", @token)
end
def repos
_call("get_repos", @token)
end
def distro(name)
_call("get_distro", name, @token)
end
def distro_for_koan(name)
_call("get_distro_for_koan", name, @token)
end
def profile(name)
_call("get_profile", name, @token)
end
def profile_for_koan(name)
_call("get_profile_for_koan", name, @token)
end
def system(name)
_call("get_system", name, @token)
end
def system_for_koan(name)
_call("get_system_for_koan", name, @token)
end
def repo(name)
_call("get_repo", name, @token)
end
def repo_for_koan(name)
_call("get_repo_for_koan", name, @token)
end
end
end
module Cloudmasterd::Models
class Cloud < Base; end
class Machine < Base; end
class CreateTheBasics < V 1.0
def self.up
create_table :cloudmasterd_cloud do |t|
t.column :name, :string, :null => false, :limit => 255
t.column :memory, :integer, :null => false
t.column :added_date, :datetime, :null => true
end
create_table :cloudmasterd_machine do |t|
t.column :name, :string, :null => false, :limit => 255
t.column :email, :string, :null => false, :limit => 255
t.column :cloud, :string, :null => false, :limit => 255
t.column :state, :string, :null => false, :limit => 255
#t.column :repo, :string, :null => false, :limit => 255 # Add the repo column capture the origin repo
t.column :created_date, :datetime, :null => true
end
end
def self.down
drop_table :cloudmasterd_cloud
drop_table :cloudmasterd_machine
end
end
end
module Cloudmasterd::Controllers
class Koan < REST 'koan'
# Retrieve the cobbler profile for the given profile name
def _get_cobbler_profile(system_name, repo)
cobblerd = Cloudmasterd::Helpers::Cobblerd.new(repo)
cobbler_system = cobblerd.system(system_name)
return cobblerd.profile(cobbler_system["profile"])
end
# Retrieve the cobbler distro for the given profile name
def _get_cobbler_distro(profile_name, repo)
cobblerd = Cloudmasterd::Helpers::Cobblerd.new(repo)
return cobblerd.distro(profile_name)
end
# Find the best host on which to create a VM
def _get_best_host(ram, arch)
return `func-find-resources -m #{ram} -a #{arch}`.chomp()
end
# run the appropriate koan command to create the given "fqdn"
# on the given "host" and "vol_group"
def _koan(host, system_name, repo)
# Run the koan process
output = `func "#{host}" call virt install #{repo} #{system_name} True #{system_name} /images`
# Throw an exception if the process failed
raise output unless $?.success?
# Make the new host autostart
`func "#{host}" call command run "ln -s /etc/xen/#{system_name} /etc/xen/auto/"`
end
# POST /koan
def create
system_name = input.system_name
repo = input.repo
email = input.email
cobbler_profile = _get_cobbler_profile(system_name, repo)
cobbler_distro = _get_cobbler_distro(cobbler_profile["distro"], repo)
# Synchronize access before making the func calls
Syncer::lock do
@host = _get_best_host(cobbler_profile["virt_ram"], cobbler_distro["arch"])
begin
_koan(@host, system_name, repo)
Machine.create :name => system_name, :email => email, :cloud => @host, :state => "Installing", :created_date => DateTime.now()
render :_koan
rescue Exception => e
@exception = e
render :_error
end
end
end
def destroy(name)
puts "Destroying image #{name}"
Syncer::lock do
Machine.find(:all, :conditions => "name = '#{name}'").each do |machine|
# If the machine is missing, don't bother remotely trying to cleanup
unless machine.state == "missing" then
# Destroy the virtual machine
`func "#{machine.cloud}" call command run "virsh destroy #{machine.name}"`
`func "#{machine.cloud}" call command run "virsh undefine #{machine.name}"`
# Remove the auto start file if it exists
`func "#{machine.cloud}" call command run "rm -rf /etc/xen/auto/#{machine.name}"`
# Remove the image file
`func "#{machine.cloud}" call command run "rm -rf /images/#{machine.name}-disk0"`
end
# Delete the DB record
machine.destroy
end
end
redirect R(Status)
end
end
class Status < REST 'status'
def list
@machines = {}
Machine.find(:all, :select => "distinct email").map{|x| x.email}.each do |email|
@machines[email] = Machine.find(:all, :conditions => "email = '#{email}'", :order => 'cloud')
end
@memory = Cloud.sum('memory')
@cloud_machines = Cloud.find(:all)
render :status
end
end
end
module Cloudmasterd::Views
def initialize(*args)
super(*args)
@x = Builder::XmlMarkup.new(:indent => 1)
end
module HTML
def layout
html do
head do
title 'Genome Cloud Master Controller'
link :rel => 'stylesheet', :type => 'text/css', :href => "/styles.css", :media => 'screen'
end
body do
div.header! do
div.headerLogo! {}
end
div.body! do
div.content! do
div.inner! do
self << yield
end
end
end
end
end
end
def status
div.cloud! do
h2 "Available cloud memory: #{@memory}"
table do
tr do
th 'Cloud Instance'
th 'Memory'
th 'Added Date'
end
@cloud_machines.each do |machine|
tr do
td machine.name
td machine.memory
unless machine.added_date == nil then
td machine.added_date.strftime("%m/%d/%Y")
else
td 'Unknown'
end
end
end
end
end
div.machines! do
@machines.keys.each do |email|
div.user do
h2 email
table do
tr do
th 'Name'
th 'Cloud Instance'
th 'State'
th 'Created Date'
th ''
end
@machines[email].each do |machine|
tr do
td machine.name
td machine.cloud
td machine.state
unless machine.created_date == nil then
td machine.created_date.strftime("%m/%d/%Y")
else
td 'Unknown'
end
td do
form(:method => :delete, :action => "/cloud" + R(Cloudmasterd::Controllers::Koan, "#{machine.name}").to_s) do
input :type => :submit, :value => 'Destroy'
end
end
end
end
end
end
end
end
end
def _koan
@host
end
def _error
"ERROR: #{@exception.to_s}"
end
end
default_format :HTML
module YAML
CONTENT_TYPE = 'text/plain'
def layout
yield
end
end
module XML
def layout
yield
end
end
end
def Cloudmasterd.create
#ActiveRecord::Base.logger = Logger.new(STDOUT)
#ActiveRecord::Base.colorize_logging = true
ActiveRecord::Base.pluralize_table_names = false
ActiveRecord::Base.establish_connection(
:adapter => "sqlite3",
:database => "/var/lib/cloudmaster.db"
)
Cloudmasterd::Models.create_schema :assume => (Cloudmasterd::Models::Machine.table_exists? ? 1.0 : 0.0)
end
Cloudmasterd.start_picnic
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