Class: OsCtld::Commands::Container::Delete

Inherits:
Logged
  • Object
show all
Includes:
OsCtl::Lib::Utils::Log, OsCtl::Lib::Utils::System, Utils::SwitchUser
Defined in:
lib/osctld/commands/container/delete.rb

Instance Method Summary collapse

Methods included from Utils::SwitchUser

#ct_attach, #ct_syscmd

Methods inherited from Logged

#base_execute

Instance Method Details

#dataset_missing?(error, dataset) ⇒ Boolean (protected)

Returns:

  • (Boolean) 


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# File 'lib/osctld/commands/container/delete.rb', line 114

def dataset_missing?(error, dataset)
  output = error.output.to_s

  output.include?(dataset.to_s) && output.include?('dataset does not exist')
end

#execute(ct) ⇒ Object 



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# File 'lib/osctld/commands/container/delete.rb', line 16

def execute(ct)
  unless opts[:force]
    ct.exclusively do
      error!('the container is running') if ct.running?
    end
  end

  manipulate(ct) do
    progress('Stopping container')
    call_cmd!(
      Commands::Container::Stop,
      pool: ct.pool.name,
      id: ct.id,
      manipulation_lock: opts[:manipulation_lock],
      progress: opts[:progress],
      message: opts[:message]
    )

    if ct.send_log
      SendReceive.stopped_using_key(ct.pool, ct.send_log.opts.key_name)
    end

    progress('Disconnecting console')
    Console.remove(ct)

    progress('Removing shared mount directory')
    ct.clear_start_menu
    ct.mounts.shared_dir.remove

    progress('Moving dataset to trash')
    trash_dataset(ct)

    progress('Removing LXC configuration and script hooks')
    Monitor::Master.demonitor(ct)
    syscmd("rm -rf #{ct.lxc_dir} #{ct.user_hook_script_dir}")

    if File.exist?(ct.log_path)
      File.rename(ct.log_path, "#{ct.log_path}.destroyed")
    end

    File.unlink(ct.config_path)

    progress('Unregistering container')
    DB::Containers.remove(ct)
    ct.pool.autostart_plan.clear_ct(ct)

    progress('Removing cgroups')
    begin
      if ct.group.has_containers?(ct.user)
        CGroup.rmpath_all(ct.base_cgroup_path)

      else
        CGroup.rmpath_all(ct.group.full_cgroup_path(ct.user))
      end
    rescue SystemCallError
      # If some of the cgroups are busy, just leave them be
    end

    if AppArmor.enabled?
      progress('Removing AppArmor profile')
      ct.apparmor.destroy_namespace
      ct.apparmor.destroy_profile
    end

    bashrc = File.join(ct.lxc_dir, '.bashrc')
    FileUtils.rm_f(bashrc)

    unless ct.group.has_containers?(ct.user)
      Dir.rmdir(ct.group.userdir(ct.user))
    end
  end

  if !ct.user.standalone && !ct.user.has_containers?
    call_cmd!(
      Commands::User::Delete,
      pool: ct.user.pool.name,
      name: ct.user.name
    )
  end

  progress('Reconfiguring LXC usernet')
  call_cmd(Commands::User::LxcUsernet)

  ct.pool.trash_bin.prune if opts[:prune]

  ok
end

#find ⇒ Object 



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# File 'lib/osctld/commands/container/delete.rb', line 11

def find
  ct = DB::Containers.find(opts[:id], opts[:pool])
  ct || error!('container not found')
end

#trash_dataset(ct) ⇒ Object (protected) 



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# File 'lib/osctld/commands/container/delete.rb', line 106

def trash_dataset(ct)
  TrashBin.add_dataset(ct.pool, ct.dataset)
rescue SystemCommandFailed => e
  raise unless dataset_missing?(e, ct.dataset)

  ct.log(:warn, "Unable to move dataset #{ct.dataset} to trash: dataset does not exist")
end