vagrant/plugins/guests/fedora/cap/configure_networks.rb

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require "set"
require "tempfile"
require "vagrant/util/retryable"
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require "vagrant/util/template_renderer"
module VagrantPlugins
module GuestFedora
module Cap
class ConfigureNetworks
extend Vagrant::Util::Retryable
include Vagrant::Util
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def self.configure_networks(machine, networks)
network_scripts_dir = machine.guest.capability("network_scripts_dir")
interface_names = Array.new
machine.communicate.sudo("/usr/sbin/biosdevname -d | grep Kernel | cut -f2 -d: | sed -e 's/ //;'") do |_, result|
interface_names = result.split("\n")
end
interface_name_pairs = Array.new
interface_names.each do |interface_name|
machine.communicate.sudo("/usr/sbin/biosdevname --policy=all_ethN -i #{interface_name}") do |_, result|
interface_name_pairs.push([interface_name, result.gsub("\n", "")])
end
end
setting_interface_names = networks.map do |network|
"eth#{network[:interface]}"
end
interface_name_pairs.each do |interface_name, previous_interface_name|
if setting_interface_names.index(previous_interface_name) == nil
interface_names.delete(interface_name)
end
end
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# Accumulate the configurations to add to the interfaces file as well
# as what interfaces we're actually configuring since we use that later.
interfaces = Set.new
networks.each do |network|
interface = interface_names[network[:interface]-1]
interfaces.add(interface)
network[:device] = interface
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# Remove any previous vagrant configuration in this network
# interface's configuration files.
machine.communicate.sudo("touch #{network_scripts_dir}/ifcfg-#{interface}")
machine.communicate.sudo("sed -e '/^#VAGRANT-BEGIN/,/^#VAGRANT-END/ d' #{network_scripts_dir}/ifcfg-#{interface} > /tmp/vagrant-ifcfg-#{interface}")
machine.communicate.sudo("cat /tmp/vagrant-ifcfg-#{interface} > #{network_scripts_dir}/ifcfg-#{interface}")
machine.communicate.sudo("rm /tmp/vagrant-ifcfg-#{interface}")
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# Render and upload the network entry file to a deterministic
# temporary location.
entry = TemplateRenderer.render("guests/fedora/network_#{network[:type]}",
options: network)
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temp = Tempfile.new("vagrant")
temp.binmode
temp.write(entry)
temp.close
machine.communicate.upload(temp.path, "/tmp/vagrant-network-entry_#{interface}")
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end
# Bring down all the interfaces we're reconfiguring. By bringing down
# each specifically, we avoid reconfiguring p7p (the NAT interface) so
# SSH never dies.
interfaces.each do |interface|
retryable(on: Vagrant::Errors::VagrantError, tries: 3, sleep: 2) do
machine.communicate.sudo("cat /tmp/vagrant-network-entry_#{interface} >> #{network_scripts_dir}/ifcfg-#{interface}")
machine.communicate.sudo("/sbin/ifdown #{interface}", error_check: true)
machine.communicate.sudo("/sbin/ifup #{interface}")
end
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machine.communicate.sudo("rm /tmp/vagrant-network-entry_#{interface}")
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end
end
end
end
end
end