Class: VagrantPlugins::ProviderLibvirt::Action::CreateNetworkInterfaces

Inherits:
Object
  • Object
show all
Includes:
Vagrant::Util::NetworkIP, Vagrant::Util::ScopedHashOverride, Util::ErbTemplate, Util::NetworkUtil
Defined in:
lib/vagrant-libvirt/action/create_network_interfaces.rb

Overview

Create network interfaces for domain, before domain is running. Networks for connecting those interfaces should be already prepared.

Instance Method Summary collapse

Methods included from Util::NetworkUtil

#configured_networks, #libvirt_networks

Methods included from Util::ErbTemplate

#to_xml

Constructor Details

#initialize(app, env) ⇒ CreateNetworkInterfaces

Returns a new instance of CreateNetworkInterfaces.



16
17
18
19
20
21
22
23
 
# File 'lib/vagrant-libvirt/action/create_network_interfaces.rb', line 16

def initialize(app, env)
  @logger = Log4r::Logger.new('vagrant_libvirt::action::create_network_interfaces')
  @management_network_name = env[:machine].provider_config.management_network_name
  config = env[:machine].provider_config
  @nic_model_type = config.nic_model_type || 'virtio'
  @nic_adapter_count = config.nic_adapter_count
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
 
# File 'lib/vagrant-libvirt/action/create_network_interfaces.rb', line 25

def call(env)
  # Get domain first.
  begin
    domain = env[:machine].provider.driver.connection.client.lookup_domain_by_uuid(
      env[:machine].id.to_s
    )
  rescue => e
    raise Errors::NoDomainError,
          error_message: e.message
  end

  # Setup list of interfaces before creating them.
  adapters = []

  # Vagrant gives you adapter 0 by default
  # Assign interfaces to slots.
  configured_networks(env, @logger).each do |options|
    # dont need to create interface for this type
    next if options[:iface_type] == :forwarded_port

    # TODO: fill first ifaces with adapter option specified.
    if options[:adapter]
      if adapters[options[:adapter]]
        raise Errors::InterfaceSlotNotAvailable
      end

      free_slot = options[:adapter].to_i
      @logger.debug "Using specified adapter slot #{free_slot}"
    else
      free_slot = find_empty(adapters)
      @logger.debug "Adapter not specified so found slot #{free_slot}"
      raise Errors::InterfaceSlotNotAvailable if free_slot.nil?
    end

    # We have slot for interface, fill it with interface configuration.
    adapters[free_slot] = options
    adapters[free_slot][:network_name] = interface_network(
      env[:machine].provider.driver.connection.client, adapters[free_slot]
    )
  end

  # Create each interface as new domain device.
  @macs_per_network = Hash.new(0)
  adapters.each_with_index do |iface_configuration, slot_number|
    @iface_number = slot_number
    @network_name = iface_configuration[:network_name]
    @source_options = {
      network: @network_name
    }
    @mac = iface_configuration.fetch(:mac, false)
    @model_type = iface_configuration.fetch(:model_type, @nic_model_type)
    @driver_name = iface_configuration.fetch(:driver_name, false)
    @driver_queues = iface_configuration.fetch(:driver_queues, false)
    @device_name = iface_configuration.fetch(:iface_name, false)
    template_name = 'interface'
    # Configuration for public interfaces which use the macvtap driver
    if iface_configuration[:iface_type] == :public_network
      @device = iface_configuration.fetch(:dev, 'eth0')
      @mode = iface_configuration.fetch(:mode, 'bridge')
      @type = iface_configuration.fetch(:type, 'direct')
      @model_type = iface_configuration.fetch(:model_type, @nic_model_type)
      @driver_name = iface_configuration.fetch(:driver_name, false)
      @driver_queues = iface_configuration.fetch(:driver_queues, false)
      @portgroup = iface_configuration.fetch(:portgroup, nil)
      @network_name = iface_configuration.fetch(:network_name, @network_name)
      template_name = 'public_interface'
      @logger.info("Setting up public interface using device #{@device} in mode #{@mode}")
      @ovs = iface_configuration.fetch(:ovs, false)
      @trust_guest_rx_filters = iface_configuration.fetch(:trust_guest_rx_filters, false)
    # configuration for udp or tcp tunnel interfaces (p2p conn btwn guest OSes)
    elsif iface_configuration.fetch(:tunnel_type, nil)
      @type = iface_configuration.fetch(:tunnel_type)
      @tunnel_port = iface_configuration.fetch(:tunnel_port, nil)
      raise Errors::TunnelPortNotDefined if @tunnel_port.nil?
      if @type == 'udp'
        # default udp tunnel source to 127.0.0.1
        @udp_tunnel={
          address: iface_configuration.fetch(:tunnel_local_ip,'127.0.0.1'),
          port: iface_configuration.fetch(:tunnel_local_port)
        }
      end
      # default mcast tunnel to 239.255.1.1. Web search says this
      # 239.255.x.x is a safe range to use for general use mcast
      default_ip = if @type == 'mcast'
                     '239.255.1.1'
                   else
                     '127.0.0.1'
                   end
      @source_options = {
        address: iface_configuration.fetch(:tunnel_ip, default_ip),
        port: @tunnel_port
      }
      @tunnel_type = iface_configuration.fetch(:model_type, @nic_model_type)
      @driver_name = iface_configuration.fetch(:driver_name, false)
      @driver_queues = iface_configuration.fetch(:driver_queues, false)
      template_name = 'tunnel_interface'
      @logger.info("Setting up #{@type} tunnel interface using  #{@tunnel_ip} port #{@tunnel_port}")
    end

    message = "Creating network interface eth#{@iface_number}"
    message << " connected to network #{@network_name}."
    if @mac
      @mac = @mac.scan(/(\h{2})/).join(':')
      message << " Using MAC address: #{@mac}"
    end
    @logger.info(message)

    begin
      # FIXME: all options for network driver should be hash from Vagrantfile
      driver_options = {}
      driver_options[:name] = @driver_name if @driver_name
      driver_options[:queues] = @driver_queues if @driver_queues
      @udp_tunnel ||= {}
      xml = if template_name == 'interface' or
               template_name == 'tunnel_interface'
              interface_xml(@type,
                            @source_options,
                            @mac,
                            @device_name,
                            @iface_number,
                            @model_type,
                            driver_options,
                            @udp_tunnel)
            else
              to_xml(template_name)
            end
      domain.attach_device(xml)
    rescue => e
      raise Errors::AttachDeviceError,
            error_message: e.message
    end

    # Re-read the network configuration and grab the MAC address
    if iface_configuration[:iface_type] == :public_network
      xml = Nokogiri::XML(domain.xml_desc)
      source = "@network='#{@network_name}'"
      if @type == 'direct'
          source = "@dev='#{@device}'"
      elsif @portgroup.nil?
        source = "@bridge='#{@device}'"
      end
      if not @mac
        macs = xml.xpath("/domain/devices/interface[source[#{source}]]/mac/@address")
        @mac = macs[@macs_per_network[source]]
        iface_configuration[:mac] = @mac.to_s
      end
      @macs_per_network[source] += 1
    end
  end

  # Continue the middleware chain.
  @app.call(env)

  if env[:machine].config.vm.box
    # Configure interfaces that user requested. Machine should be up and
    # running now.
    networks_to_configure = []

    adapters.each_with_index do |options, slot_number|
      # Skip configuring the management network, which is on the first interface.
      # It's used for provisioning and it has to be available during provisioning,
      # ifdown command is not acceptable here.
      next if slot_number.zero?
      next if options[:auto_config] === false
      @logger.debug "Configuring interface slot_number #{slot_number} options #{options}"

      network = {
        interface: slot_number,
        use_dhcp_assigned_default_route: options[:use_dhcp_assigned_default_route],
        mac_address: options[:mac]
      }

      if options[:ip]
        network = {
          type: :static,
          ip: options[:ip],
          netmask: options[:netmask],
          gateway: options[:gateway]
        }.merge(network)
      else
        network[:type] = :dhcp
      end

      # do not run configure_networks for tcp tunnel interfaces
      next if options.fetch(:tunnel_type, nil)

      networks_to_configure << network
    end

    env[:ui].info I18n.t('vagrant.actions.vm.network.configuring')
    env[:machine].guest.capability(
      :configure_networks, networks_to_configure
    )

  end
end