Module: VagrantPlugins::ProviderLibvirt::Util::NetworkUtil

Includes:
Vagrant::Util::NetworkIP
Included in:
Action::CreateNetworkInterfaces, Action::CreateNetworks
Defined in:
lib/vagrant-libvirt/util/network_util.rb

Instance Method Summary collapse

Instance Method Details

#configured_networks(env, logger) ⇒ Object 



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# File 'lib/vagrant-libvirt/util/network_util.rb', line 10

def configured_networks(env, logger)
  management_network_name = env[:machine].provider_config.management_network_name
  management_network_address = env[:machine].provider_config.management_network_address
  logger.info "Using #{management_network_name} at #{management_network_address} as the management network"

  begin
    management_network_ip = IPAddr.new(management_network_address)
  rescue ArgumentError
    raise Errors::ManagementNetworkError,
      error_message: "#{management_network_address} is not a valid IP address"
  end

  # capture address into $1 and mask into $2
  management_network_ip.inspect =~ /IPv4:(.*)\/(.*)>/

  if $2 == '255.255.255.255'
    raise Errors::ManagementNetworkError,
      error_message: "#{management_network_address} does not include both an address and subnet mask"
  end

  management_network_options = {
    iface_type: :private_network,
    network_name: management_network_name,
    ip: $1,
    netmask: $2,
    dhcp_enabled: true,
    forward_mode: 'nat',
  }

  # add management network to list of networks to check
  networks = [ management_network_options ]

  env[:machine].config.vm.networks.each do |type, original_options|
    logger.debug "In config found network type #{type} options #{original_options}"
    # Options can be specified in Vagrantfile in short format (:ip => ...),
    # or provider format # (:libvirt__network_name => ...).
    # https://github.com/mitchellh/vagrant/blob/master/lib/vagrant/util/scoped_hash_override.rb
    options = scoped_hash_override(original_options, :libvirt)
    # store type in options
    # use default values if not already set
    options = {
      iface_type:  type,
      netmask:      '255.255.255.0',
      dhcp_enabled: true,
      forward_mode: 'nat',
    }.merge(options)
    # add to list of networks to check
    networks.push(options)
  end

  return networks
end

#libvirt_networks(libvirt_client) ⇒ Object

Return a list of all (active and inactive) libvirt networks as a list of hashes with their name, network address and status (active or not)



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# File 'lib/vagrant-libvirt/util/network_util.rb', line 65

def libvirt_networks(libvirt_client)
  libvirt_networks = []

  active = libvirt_client.list_networks
  inactive = libvirt_client.list_defined_networks

  # Iterate over all (active and inactive) networks.
  active.concat(inactive).each do |network_name|
    libvirt_network = libvirt_client.lookup_network_by_name(
      network_name)

    # Parse ip address and netmask from the network xml description.
    xml = Nokogiri::XML(libvirt_network.xml_desc)
    ip = xml.xpath('/network/ip/@address').first
    ip = ip.value if ip
    netmask = xml.xpath('/network/ip/@netmask').first
    netmask = netmask.value if netmask

    if xml.at_xpath('//network/ip/dhcp')
      dhcp_enabled = true
    else
      dhcp_enabled = false
    end

    # Calculate network address of network from ip address and
    # netmask.
    if ip && netmask
      network_address = network_address(ip, netmask)
    else
      network_address = nil
    end

    libvirt_networks << {
      name:             network_name,
      ip_address:       ip,
      netmask:          netmask,
      network_address:  network_address,
      dhcp_enabled:     dhcp_enabled,
      bridge_name:      libvirt_network.bridge_name,
      created:          true,
      active:           libvirt_network.active?,
      autostart:        libvirt_network.autostart?,
      libvirt_network:  libvirt_network
    }
  end

  libvirt_networks
end