vagrant-lxc-ng/lib/vagrant-lxc/config.rb

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module Vagrant
module LXC
class Config < Vagrant.plugin("2", :config)
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# An array of container's configuration overrides to be provided to `lxc-start`.
#
# @return [Array]
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attr_reader :customizations
# A String that points to a file that acts as a wrapper for sudo commands.
#
# This allows us to have a single entry when whitelisting NOPASSWD commands
# on /etc/sudoers
attr_accessor :sudo_wrapper
# A string to explicitly set the container name. To use the vagrant
# machine name, set this to :machine
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attr_accessor :container_name
def initialize
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@customizations = []
@sudo_wrapper = UNSET_VALUE
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@container_name = UNSET_VALUE
end
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# Customize the container by calling `lxc-start` with the given
# configuration overrides.
#
# For example, if you want to set the memory limit, you can use it
# like: config.customize 'cgroup.memory.limit_in_bytes', '400M'
#
# When `lxc-start`ing the container, vagrant-lxc will pass in
# "-s lxc.cgroup.memory.limit_in_bytes=400M" to it.
#
# @param [String] key Configuration key to override
# @param [String] value Configuration value to override
def customize(key, value)
@customizations << [key, value]
end
def finalize!
@sudo_wrapper = nil if @sudo_wrapper == UNSET_VALUE
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@container_name = nil if @container_name == UNSET_VALUE
end
def validate(machine)
errors = []
if @sudo_wrapper
hostpath = Pathname.new(@sudo_wrapper).expand_path(machine.env.root_path)
if ! hostpath.file?
errors << I18n.t('vagrant_lxc.sudo_wrapper_not_found', path: hostpath.to_s)
elsif ! hostpath.executable?
errors << I18n.t('vagrant_lxc.sudo_wrapper_not_executable', path: hostpath.to_s)
end
end
{ "lxc provider" => errors }
end
end
end
end