vagrant-lxc-ng/lib/vagrant-lxc/driver/fetch_ip_from_dnsmasq.rb

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module Vagrant
module LXC
class Driver
module FetchIpFromDsnmasq
def assigned_ip
@logger.debug 'Loading ip from dnsmasq leases'
ip = nil
# TODO: Use Vagrant::Util::Retryable
10.times do
if dnsmasq_leases =~ /#{Regexp.escape mac_address}\s+([0-9.]+)\s+/
ip = $1.to_s
break
else
@logger.debug 'Ip could not be parsed from dnsmasq leases file'
sleep 2
end
end
# TODO: Raise an user friendly error
raise 'Unable to identify container IP!' unless ip
ip
end
def mac_address
@mac_address ||= base_path.join('config').read.match(/^lxc\.network\.hwaddr\s+=\s+(.+)$/)[1]
end
LEASES_PATHS = %w(
/var/lib/misc/dnsmasq.leases
/var/lib/dnsmasq/dnsmasq.leases
/var/db/dnsmasq.leases
)
def dnsmasq_leases
LEASES_PATHS.map do |path|
File.read(path) if File.exists?(path)
end.join("\n")
end
end
end
end
end