class Vagrant::LXC::Driver::CLI
Attributes
name[RW]
Public Class Methods
new(sudo_wrapper, name = nil)
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# File lib/vagrant-lxc/driver/cli.rb, line 20 def initialize(sudo_wrapper, name = nil) @sudo_wrapper = sudo_wrapper @name = name @logger = Log4r::Logger.new("vagrant::provider::lxc::container::cli") end
Public Instance Methods
attach(*cmd)
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# File lib/vagrant-lxc/driver/cli.rb, line 104 def attach(*cmd) cmd = ['--'] + cmd if cmd.last.is_a?(Hash) opts = cmd.pop namespaces = Array(opts[:namespaces]).map(&:upcase).join('|') # HACK: The wrapper script should be able to handle this if @sudo_wrapper.wrapper_path namespaces = "'#{namespaces}'" end if namespaces extra = ['--namespaces', namespaces] end end run :attach, '--name', @name, *((extra || []) + cmd) end
config(param)
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# File lib/vagrant-lxc/driver/cli.rb, line 41 def config(param) run(:config, param).gsub("\n", '') end
create(template, backingstore, backingstore_options, config_file, template_opts = {})
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# File lib/vagrant-lxc/driver/cli.rb, line 57 def create(template, backingstore, backingstore_options, config_file, template_opts = {}) if config_file config_opts = ['-f', config_file] end extra = template_opts.to_a.flatten.reject { |elem| elem.empty? } extra.unshift '--' unless extra.empty? run :create, '-B', backingstore, '--template', template, '--name', @name, *(backingstore_options.to_a.flatten), *(config_opts), *extra rescue Errors::ExecuteError => e if e.stderr =~ /already exists/i raise Errors::ContainerAlreadyExists, name: @name else raise end end
destroy()
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# File lib/vagrant-lxc/driver/cli.rb, line 80 def destroy run :destroy, '--name', @name end
info(*cmd)
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# File lib/vagrant-lxc/driver/cli.rb, line 124 def info(*cmd) run(:info, '--name', @name, *cmd) end
list()
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# File lib/vagrant-lxc/driver/cli.rb, line 26 def list run(:ls).split(/\s+/).uniq end
start(options = [])
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# File lib/vagrant-lxc/driver/cli.rb, line 84 def start(options = []) run :start, '-d', '--name', @name, *Array(options) end
state()
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# File lib/vagrant-lxc/driver/cli.rb, line 49 def state if @name && run(:info, '--name', @name, retryable: true) =~ /^state:[^A-Z]+([A-Z]+)$/i $1.downcase.to_sym elsif @name :unknown end end
stop()
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lxc-stop will exit 2 if machine was already stopped
Man Page: 2 The specified container exists but was not running.
# File lib/vagrant-lxc/driver/cli.rb, line 91 def stop attach '/sbin/halt' if supports_attach? begin run :stop, '--name', @name rescue LXC::Errors::ExecuteError => e if e.exitcode == 2 @logger.debug "Machine already stopped, lxc-stop returned 2" else raise e end end end
supports_attach?()
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# File lib/vagrant-lxc/driver/cli.rb, line 145 def supports_attach? unless defined?(@supports_attach) begin @supports_attach = true run(:attach, '--name', @name, '--', '/bin/true') rescue LXC::Errors::ExecuteError @supports_attach = false end end return @supports_attach end
transition_to(target_state, tries = 30, timeout = 1) { |self| ... }
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# File lib/vagrant-lxc/driver/cli.rb, line 128 def transition_to(target_state, tries = 30, timeout = 1, &block) raise TransitionBlockNotProvided unless block_given? yield self while (last_state = self.state) != target_state && tries > 0 @logger.debug "Target state '#{target_state}' not reached, currently on '#{last_state}'" sleep timeout tries -= 1 end unless last_state == target_state # TODO: Raise an user friendly message raise TargetStateNotReached.new target_state, last_state end end
update_config(path)
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# File lib/vagrant-lxc/driver/cli.rb, line 45 def update_config(path) run('update-config', '-c', path) end
version()
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# File lib/vagrant-lxc/driver/cli.rb, line 30 def version return @version if @version @version = run(:create, '--version') if @version =~ /(lxc version:\s+|)(.+)\s*$/ @version = $2.downcase else # TODO: Raise an user friendly error raise 'Unable to parse lxc version!' end end
Private Instance Methods
run(command, *args)
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# File lib/vagrant-lxc/driver/cli.rb, line 160 def run(command, *args) @sudo_wrapper.run("lxc-#{command}", *args) end