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_in_mb, cpu, placer, client, cloud_searcher, logger, cpi, agent_env, file_provider, disk_provider) ⇒ VmCreator

Returns a new instance of VmCreator.



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# File 'lib/cloud/vsphere/vm_creator.rb', line 3

def initialize(memory, disk_size_in_mb, cpu, placer, client, cloud_searcher, logger, cpi, agent_env, file_provider, disk_provider)
  @placer = placer
  @client = client
  @cloud_searcher = cloud_searcher
  @logger = logger
  @cpi = cpi
  @memory = memory
  @disk_size_in_mb = disk_size_in_mb
  @cpu = cpu
  @agent_env = agent_env
  @file_provider = file_provider
  @disk_provider = disk_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, persistent_disk_cids, environment) ⇒ Object 



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# File 'lib/cloud/vsphere/vm_creator.rb', line 19

def create(agent_id, stemcell_cid, networks, persistent_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

  persistent_disk_cids ||= []
  persistent_disks = persistent_disk_cids.map { |cid| @disk_provider.find(cid) }

  # need to include swap and linked clone log
  ephemeral_disk_size_in_mb = @disk_size_in_mb + @memory + stemcell_size
  cluster = @placer.pick_cluster_for_vm(@memory, ephemeral_disk_size_in_mb, persistent_disks)
  datastore = @placer.pick_ephemeral_datastore(cluster, ephemeral_disk_size_in_mb)

  vm_cid = "vm-#{SecureRandom.uuid}"
  @logger.info("Creating vm: #{vm_cid} on #{cluster.mob} stored in #{datastore.mob}")

  replicated_stemcell_vm_mob = @cpi.replicate_stemcell(cluster, datastore, stemcell_cid)
  replicated_stemcell_properties = @cloud_searcher.get_properties(replicated_stemcell_vm_mob, VimSdk::Vim::VirtualMachine,
    ['snapshot'],
    ensure_all: true)
  replicated_stemcell_vm = Resources::VM.new(stemcell_cid, replicated_stemcell_vm_mob, @client, @logger)
  snapshot = replicated_stemcell_properties['snapshot']

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

  ephemeral_disk = VSphereCloud::EphemeralDisk.new(@disk_size_in_mb, vm_cid, datastore)
  ephemeral_disk_config = ephemeral_disk.create_spec(replicated_stemcell_vm.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, replicated_stemcell_vm.pci_controller.key, dvs_index)
    config.device_change << nic_config
  end

  replicated_stemcell_vm.nics.each do |nic|
    nic_config = @cpi.create_delete_device_spec(nic)
    config.device_change << nic_config
  end

  replicated_stemcell_vm.fix_device_unit_numbers(config.device_change)

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

  task = @cpi.clone_vm(replicated_stemcell_vm.mob,
    vm_cid,
    cluster.datacenter.vm_folder.mob,
    cluster.resource_pool.mob,
    datastore: datastore.mob, linked: true, snapshot: snapshot.current_snapshot, config: config)
  created_vm_mob = @client.wait_for_task(task)
  created_vm = Resources::VM.new(vm_cid, created_vm_mob, @client, @logger)

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

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

    @agent_env.set_env(created_vm.mob, location, env)

    @logger.info("Powering on VM: #{created_vm} (#{created_vm.cid})")
    created_vm.power_on

    create_drs_rules(created_vm.mob, cluster)
  rescue => e
    @logger.info("#{e} - #{e.backtrace.join("\n")}")
    created_vm.delete if created_vm
    raise e
  end

  vm_cid
end

#create_drs_rules(vm, cluster) ⇒ Object 



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# File 'lib/cloud/vsphere/vm_creator.rb', line 106

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