vmpooler/vmware-host-pooler
Scott Schneider 4c858d012a Initial
2013-09-24 11:27:46 -07:00

129 lines
3.6 KiB
Ruby
Executable file

#!/usr/bin/ruby
require 'rbvmomi'
require 'redis'
require 'yaml'
require File.expand_path( File.dirname( __FILE__ ), './lib/vsphere_helper.rb' )
vsphere_helper = VsphereHelper.new
# Load the pool configuration
pools = YAML.load_file('vmware-host-pooler.yaml')[:pools]
# Load fog credentials
fog_file = File.expand_path("~/.fog")
fog_data = YAML.load_file(fog_file)[:default]
# Connect to vSphere
$vim = RbVmomi::VIM.connect(
:host => fog_data[:vsphere_server],
:user => fog_data[:vsphere_username],
:password => fog_data[:vsphere_password],
:ssl => true,
:insecure => true,
:rev => '5.1'
)
# Connect to Redis
$redis = Redis.new
loop do
pools.each do |pool|
total = 0
datacenter = $vim.serviceInstance.find_datacenter
base = datacenter.hostFolder
path = pool['pool'].split('/')
# Locate the resource pool
path.each do |p|
case base
when RbVmomi::VIM::Folder
base = base.childEntity.find { |f| f.name == p }
when RbVmomi::VIM::ClusterComputeResource
base = base.resourcePool.resourcePool.find { |f| f.name == p }
when RbVmomi::VIM::ResourcePool
base = base.resourcePool.find { |f| f.name == p }
else
abort "Unexpected object type encountered (#{base.class}) while finding resource pool"
end
end
base = base.resourcePool unless base.is_a?(RbVmomi::VIM::ResourcePool) and base.respond_to?(:resourcePool)
# Count the number of VMs and correlate Redis inventory
inventory = {}
base.vm.each do |vm|
if ! $redis.sismember('vmware_host_pool-'+pool['name'], vm['name'])
$redis.sadd('vmware_host_pool-'+pool['name'], vm['name'])
end
inventory[vm['name']] = 1
total = total + 1
end
$redis.smembers('vmware_host_pool-'+pool['name']).each do |vm|
if ! inventory[vm]
$redis.srem('vmware_host_pool-'+pool['name'], vm)
end
end
# Bring the pool up to the desired size
if total < pool['size']
# Provision VMs
(1..(pool['size']-total)).each { |i|
vm = {}
if pool['template'] =~ /\//
templatefolders = pool['template'].split('/')
vm['template'] = templatefolders.pop
end
if templatefolders
vm[vm['template']] = vsphere_helper.find_folder(templatefolders.join('/')).find(vm['template'])
else
raise "Please provide a full path to the template"
end
if vm['template'].length == 0
raise "Unable to find template '#{h['template']}'!"
end
# Generate a randomized hostname
o = [('a'..'z'),('0'..'9')].map{|r| r.to_a}.flatten
vm['hostname'] = o[rand(25)]+(0...14).map{o[rand(o.length)]}.join
# Put the VM in the specified folder and resource pool
relocateSpec = RbVmomi::VIM.VirtualMachineRelocateSpec(
:datastore => vsphere_helper.find_datastore(pool['datastore']),
:pool => vsphere_helper.find_pool(pool['pool']),
:diskMoveType => :moveChildMostDiskBacking
)
# Create a clone spec
spec = RbVmomi::VIM.VirtualMachineCloneSpec(
:location => relocateSpec,
:powerOn => true,
:template => false
)
puts '[+] '+vm.inspect
# Clone the VM
vm[vm['template']].CloneVM_Task(
:folder => vsphere_helper.find_folder(pool['folder']),
:name => vm['hostname'],
:spec => spec
).wait_for_completion
# Add VM to Redis inventory
$redis.sadd('vmware_host_pool-'+pool['name'], vm['hostname'])
}
end
# ZZZzzz...
sleep(5)
end
end