Class: Bosh::Director::DeploymentPlan::IpProvider

Inherits:
Object
  • Object
show all
Includes:
IpUtil
Defined in:
lib/bosh/director/deployment_plan/ip_provider/ip_provider.rb

Instance Method Summary collapse

Methods included from IpUtil

#each_ip, #format_ip, #ip_to_i, #ip_to_netaddr

Constructor Details

#initialize(ip_repo, networks, logger) ⇒ IpProvider

Returns a new instance of IpProvider.



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# File 'lib/bosh/director/deployment_plan/ip_provider/ip_provider.rb', line 6

def initialize(ip_repo, networks, logger)
  @logger = Bosh::Director::TaggedLogger.new(logger, 'network-configuration')
  @ip_repo = ip_repo
  @networks = networks
end

Instance Method Details

#release(reservation) ⇒ Object 



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# File 'lib/bosh/director/deployment_plan/ip_provider/ip_provider.rb', line 12

def release(reservation)
  if reservation.ip.nil?
    return if reservation.network.is_a?(DynamicNetwork)

    @logger.error("Failed to release IP for manual network '#{reservation.network.name}': IP must be provided")
    raise Bosh::Director::NetworkReservationIpMissing, "Can't release reservation without an IP"
  else
    @ip_repo.delete(reservation.ip, reservation.network.name)
  end
end

#reserve(reservation) ⇒ Object 



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# File 'lib/bosh/director/deployment_plan/ip_provider/ip_provider.rb', line 23

def reserve(reservation)
  # We should not be calling reserve on reservations that have already been reserved
  return if reservation.reserved?

  if reservation.network.is_a?(DynamicNetwork)
    reserve_dynamic(reservation)
    return
  end

  if reservation.network.is_a?(VipNetwork)
    reserve_vip(reservation)
    return
  end

  # Reserve IP for Manual Network
  if reservation.ip.nil?
    @logger.debug("Allocating dynamic ip for manual network '#{reservation.network.name}'")

    filter_subnet_by_instance_az(reservation).each do |subnet|
      ip = @ip_repo.allocate_dynamic_ip(reservation, subnet)

      if ip
        @logger.debug("Reserving dynamic IP '#{format_ip(ip)}' for manual network '#{reservation.network.name}'")
        reservation.resolve_ip(ip)
        reservation.resolve_type(:dynamic)
        reservation.mark_reserved
        return
      end
    end

    raise NetworkReservationNotEnoughCapacity,
      "Failed to reserve IP for '#{reservation.instance_model}' for manual network '#{reservation.network.name}': no more available"

  else

    ip_string = format_ip(reservation.ip)
    @logger.debug("Reserving #{reservation.desc} for manual network '#{reservation.network.name}'")

    subnet = reservation.network.find_subnet_containing(reservation.ip)
    if subnet
      if subnet.restricted_ips.include?(reservation.ip.to_i)
        message = "Failed to reserve IP '#{ip_string}' for network '#{subnet.network_name}': IP belongs to reserved range"
        @logger.error(message)
        raise Bosh::Director::NetworkReservationIpReserved, message
      end

      reserve_manual(reservation, subnet)
    else
      raise NetworkReservationIpOutsideSubnet,
        "Provided static IP '#{ip_string}' does not belong to any subnet in network '#{reservation.network.name}'"
    end
  end
end

#reserve_existing_ips(reservation) ⇒ Object 



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# File 'lib/bosh/director/deployment_plan/ip_provider/ip_provider.rb', line 77

def reserve_existing_ips(reservation)
  if reservation.network.is_a?(DynamicNetwork)
    if reservation.network_type == 'dynamic'
      # Marking reservation as reserved so that it keeps existing reservation and
      # does not recreate VM
      reserve_dynamic(reservation)
    end

    # If previous network type was not dynamic we should release reservation from DB
    return
  end

  if reservation.network.is_a?(VipNetwork)
    reserve_vip(reservation)
    return
  end

  @logger.debug('Reserving existing ips')
  network, subnet = find_network_and_subnet_containing(reservation.ip, reservation.network.name)
  if subnet
    @logger.debug("Marking existing IP #{format_ip(reservation.ip)} as reserved")
    reservation.resolve_network(network)
    reserve_manual(reservation, subnet)
  end
end