Module: Landrush::Cap::All::ReadHostVisibleIpAddress

Defined in:
lib/landrush/cap/guest/all/read_host_visible_ip_address.rb

Class Method Summary collapse

Class Method Details

.filter_addresses(addresses) ⇒ Object 



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# File 'lib/landrush/cap/guest/all/read_host_visible_ip_address.rb', line 5

def self.filter_addresses(addresses)
  unless @machine.config.landrush.host_interface_excludes.nil?
    re = Regexp.union(@machine.config.landrush.host_interface_excludes)

    addresses = addresses.select do |addr|
      !addr['name'].match(re)
    end
  end

  addresses
end

.filter_preferred_addresses(addresses) ⇒ Object 



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# File 'lib/landrush/cap/guest/all/read_host_visible_ip_address.rb', line 17

def self.filter_preferred_addresses(addresses)
  if @machine.config.landrush.host_interface_class == :any
    addresses = addresses.select do |addr|
      (addr.key?('ipv4') && !addr['ipv4'].empty?) ||
        (addr.key?('ipv6') && !addr['ipv6'].empty?)
    end
  else
    key = @machine.config.landrush.host_interface_class.to_s

    addresses = addresses.select do |addr|
      (addr.key?(key) && !addr[key].empty?)
    end
  end

  addresses
end

.read_host_visible_ip_address(machine) ⇒ Object 



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# File 'lib/landrush/cap/guest/all/read_host_visible_ip_address.rb', line 34

def self.read_host_visible_ip_address(machine)
  @machine = machine

  addr      = nil
  addresses = machine.guest.capability(:landrush_ip_get)

  # Short circuit this one first: if an explicit interface is defined, look for it and return it if found.
  # Technically, we could do a single loop, but execution time is not vital here.
  # This allows us to be more accurate, especially with logging what's going on.
  unless machine.config.landrush.host_interface.nil?
    addr = addresses.detect { |a| a['name'] == machine.config.landrush.host_interface }

    machine.env.ui.warn "[landrush] Unable to find interface #{machine.config.landrush.host_interface}" if addr.nil?
  end

  if addr.nil?
    addresses = filter_addresses addresses
    raise 'No addresses found' if addresses.empty?

    addresses = filter_preferred_addresses addresses
    raise 'No addresses found' if addresses.empty?

    addr = addresses.last
  end

  # Keep preferring IPv4 over IPv6.
  key = if machine.config.landrush.host_interface_class == :any
          addr['ipv4'].empty? ? 'ipv6' : 'ipv4'
        else
          machine.config.landrush.host_interface_class.to_s
        end

  ip = IPAddr.new(addr[key])

  machine.env.ui.info "[landrush] Using #{addr['name']} (#{addr[key]})"

  ip.to_s
end