Class: OsCtld::DistConfig::Distributions::Guix

Inherits:
Base
  • Object
show all
Defined in:
lib/osctld/dist_config/distributions/guix.rb

Defined Under Namespace

Classes: Configurator

Instance Attribute Summary

Attributes inherited from Base

#configurator, #ct, #ctrc, #distribution, #version

Instance Method Summary collapse

Methods inherited from Base

#add_netif, #apply_hostname, #configurator_class, distribution, #dns_resolvers, #initialize, #log_type, #network, #post_mount, #pre_start, #remove_netif, #rename_netif, #set_hostname, #start, #unset_etc_hosts, #update_etc_hosts, #volatile_is_systemd?, #with_rootfs

Methods included from Utils::SwitchUser

#ct_attach, #ct_syscmd

Constructor Details

This class inherits a constructor from OsCtld::DistConfig::Distributions::Base

Instance Method Details

#bin_path(_opts) ⇒ Object 



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# File 'lib/osctld/dist_config/distributions/guix.rb', line 105

def bin_path(_opts)
  with_rootfs do
    File.realpath('/var/guix/profiles/system/profile/bin')
  rescue Errno::ENOENT
    '/bin'
  end
end

#passwd(opts) ⇒ Object 



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# File 'lib/osctld/dist_config/distributions/guix.rb', line 90

def passwd(opts)
  # Without the -c switch, the password is not set (bug?)
  ret = ct_syscmd(
    ct,
    %w[chpasswd -c SHA512],
    stdin: "#{opts[:user]}:#{opts[:password]}\n",
    run: true,
    valid_rcs: :all
  )

  return true if ret.success?

  log(:warn, ct, "Unable to set password: #{ret.output}")
end

#stop(opts) ⇒ Object 



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# File 'lib/osctld/dist_config/distributions/guix.rb', line 36

def stop(opts)
  return super unless %i[stop shutdown].include?(opts[:mode])

  wait_until = Time.now + opts[:timeout]
  stopped = false
  event_queue = Eventd.subscribe

  # Shepherd gets stuck when it is sent a signal, so shut it down only using
  # halt.
  halt_thread = Thread.new do
    ContainerControl::Commands::StopByHalt.run!(
      ct,
      message: opts[:message]
    )
  rescue ContainerControl::Error => e
    log(:warn, ct, "Unable to gracefully shutdown shepherd: #{e.message}")
  end

  loop do
    unless ct.running?
      stopped = true
      break
    end

    timeout = wait_until - Time.now
    break if timeout < 0

    event = event_queue.pop(timeout:)
    break if event.nil?

    # Ignore irrelevant events
    next if event.type != :state \
            || event.opts[:pool] != ct.pool.name \
            || event.opts[:id] != ct.id

    if event.opts[:state] == :stopped
      stopped = true
      break
    end
  end

  Eventd.unsubscribe(event_queue)

  if !stopped && opts[:mode] != :shutdown
    log(:debug, ct, 'Timeout while waiting for graceful shutdown, killing the container')
    super(opts.merge(mode: :kill, message: nil))
  elsif ct.running?
    halt_thread.terminate
    raise ContainerControl::Error, 'Timeout while waiting for halt'
  end

  halt_thread.join
end