Class: VSphereCloud::VmCreator

Inherits:
Object
  • Object
show all
Defined in:
lib/cloud/vsphere/vm_creator.rb

Instance Method Summary collapse

Constructor Details

#initialize(memory, disk_size, cpu, placer, client, cloud_searcher, logger, cpi, agent_env, file_provider) ⇒ VmCreator

Returns a new instance of VmCreator.



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# File 'lib/cloud/vsphere/vm_creator.rb', line 7

def initialize(memory, disk_size, cpu, placer, client, cloud_searcher, logger, cpi, agent_env, file_provider)
  @placer = placer
  @client = client
  @cloud_searcher = cloud_searcher
  @logger = logger
  @cpi = cpi
  @memory = memory
  @disk_size = disk_size
  @cpu = cpu
  @agent_env = agent_env
  @file_provider = file_provider

  @logger.debug("VM creator initialized with memory: #{@memory}, disk: #{@disk}, cpu: #{@cpu}, placer: #{@placer}")
end

Instance Method Details

#create(agent_id, stemcell_cid, networks, disk_cids, environment) ⇒ Object 



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# File 'lib/cloud/vsphere/vm_creator.rb', line 22

def create(agent_id, stemcell_cid, networks, disk_cids, environment)
  stemcell_vm = @cpi.stemcell_vm(stemcell_cid)
  raise "Could not find stemcell: #{stemcell_cid}" if stemcell_vm.nil?

  stemcell_size =
    @cloud_searcher.get_property(stemcell_vm, VimSdk::Vim::VirtualMachine, 'summary.storage.committed', ensure_all: true)
  stemcell_size /= 1024 * 1024

  disks = @cpi.disk_spec(disk_cids)
  # need to include swap and linked clone log
  ephemeral = @disk_size + @memory + stemcell_size
  cluster, datastore = @placer.place(@memory, ephemeral, disks)

  name = "vm-#{@cpi.generate_unique_name}"
  @logger.info("Creating vm: #{name} on #{cluster.mob} stored in #{datastore.mob}")

  replicated_stemcell_vm = @cpi.replicate_stemcell(cluster, datastore, stemcell_cid)
  replicated_stemcell_properties = @cloud_searcher.get_properties(replicated_stemcell_vm, VimSdk::Vim::VirtualMachine,
                                                         ['config.hardware.device', 'snapshot'],
                                                         ensure_all: true)

  devices = replicated_stemcell_properties['config.hardware.device']
  snapshot = replicated_stemcell_properties['snapshot']

  config = VimSdk::Vim::Vm::ConfigSpec.new(memory_mb: @memory, num_cpus: @cpu)
  config.device_change = []

  system_disk = devices.find { |device| device.kind_of?(VimSdk::Vim::Vm::Device::VirtualDisk) }
  pci_controller = devices.find { |device| device.kind_of?(VimSdk::Vim::Vm::Device::VirtualPCIController) }

  ephemeral_disk = VSphereCloud::EphemeralDisk.new(@disk_size, name, datastore)
  ephemeral_disk_config = ephemeral_disk.create_spec(system_disk.controller_key)
  config.device_change << ephemeral_disk_config

  dvs_index = {}
  networks.each_value do |network|
    v_network_name = network['cloud_properties']['name']
    network_mob = @client.find_by_inventory_path([cluster.datacenter.name, 'network', v_network_name])
    nic_config = @cpi.create_nic_config_spec(v_network_name, network_mob, pci_controller.key, dvs_index)
    config.device_change << nic_config
  end

  nics = devices.select { |device| device.kind_of?(VimSdk::Vim::Vm::Device::VirtualEthernetCard) }
  nics.each do |nic|
    nic_config = @cpi.create_delete_device_spec(nic)
    config.device_change << nic_config
  end

  @cpi.fix_device_unit_numbers(devices, config.device_change)

  @logger.info("Cloning vm: #{replicated_stemcell_vm} to #{name}")

  task = @cpi.clone_vm(replicated_stemcell_vm,
                  name,
                  cluster.datacenter.vm_folder.mob,
                  cluster.resource_pool.mob,
                  datastore: datastore.mob, linked: true, snapshot: snapshot.current_snapshot, config: config)
  vm = @client.wait_for_task(task)

  begin
    vm_properties = @cloud_searcher.get_properties(vm, VimSdk::Vim::VirtualMachine, ['config.hardware.device'], ensure_all: true)
    devices = vm_properties['config.hardware.device']

    network_env = @cpi.generate_network_env(devices, networks, dvs_index)
    disk_env = @cpi.generate_disk_env(system_disk, ephemeral_disk_config.device)
    env = @cpi.generate_agent_env(name, vm, agent_id, network_env, disk_env)
    env['env'] = environment
    @logger.info("Setting VM env: #{env.pretty_inspect}")

    location = @cpi.get_vm_location(
      vm,
      datacenter: cluster.datacenter.name,
      datastore: datastore.name,
      vm: name
    )

    @agent_env.set_env(vm, location, env)

    @logger.info("Powering on VM: #{vm} (#{name})")
    @client.power_on_vm(cluster.datacenter.mob, vm)

    create_drs_rules(vm, cluster)
  rescue => e
    @logger.info("#{e} - #{e.backtrace.join("\n")}")
    @cpi.delete_vm(name)
    raise e
  end
  name
end

#create_drs_rules(vm, cluster) ⇒ Object 



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# File 'lib/cloud/vsphere/vm_creator.rb', line 112

def create_drs_rules(vm, cluster)
  return unless @placer.drs_rules
  return if @placer.drs_rules.size == 0

  if @placer.drs_rules.size > 1
    raise 'vSphere CPI supports only one DRS rule per resource pool'
  end

  rule_config = @placer.drs_rules.first

  if rule_config['type'] != 'separate_vms'
    raise "vSphere CPI only supports DRS rule of 'separate_vms' type"
  end

  drs_rule = VSphereCloud::DrsRule.new(
    rule_config['name'],
    @client,
    @cloud_searcher,
    cluster.mob,
    @logger
  )
  drs_rule.add_vm(vm)
end