Class: OsCtld::Commands::Container::SendConfig

Inherits:
Base
  • Object
show all
Includes:
OsCtl::Lib::Utils::Send
Defined in:
lib/osctld/commands/container/send_config.rb

Instance Attribute Summary

Attributes inherited from Base

#client, #client_handler, #id, #opts

Instance Method Summary collapse

Methods inherited from Base

#base_execute, #call_cmd, #call_cmd!, #error, #error!, handle, #handled, #indirect?, #initialize, #manipulate, #manipulation_holder, #ok, #progress, #request_stop, run, run!

Constructor Details

This class inherits a constructor from OsCtld::Commands::Base

Instance Method Details

#execute ⇒ Object 



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# File 'lib/osctld/commands/container/send_config.rb', line 10

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

  from_snapshot = if opts[:from_snapshot]
                    if opts[:from_snapshot].start_with?('@')
                      opts[:from_snapshot][1..]
                    else
                      opts[:from_snapshot]
                    end
                  end

  manipulate(ct) do
    next error('this container is already being sent') if ct.send_log

    ctid = opts[:as_id] || ct.id

    f = Tempfile.open("ct-#{ct.id}-skel")
    export(
      ct,
      f,
      ctid:,
      user: opts[:as_user] || ct.user.name,
      group: opts[:as_group] || ct.group.name,
      network_interfaces: opts[:network_interfaces]
    )
    f.seek(0)

    m_opts = {
      ctid:,
      port: opts[:port] || 22,
      dst: opts[:dst],
      snapshots: opts.fetch(:snapshots, true),
      from_snapshot:,
      preexisting_datasets: opts.fetch(:preexisting_datasets, false)
    }

    recv_opts = [
      'receive', 'skel',
      opts[:to_pool] || '-'
    ]

    recv_opts << opts[:passphrase] if opts[:passphrase]

    ssh = send_ssh_cmd(
      ct.pool.send_receive_key_chain,
      m_opts,
      recv_opts
    )
    token = nil

    IO.popen("exec #{ssh.join(' ')}", 'r+') do |io|
      io.write(f.readpartial(32 * 1024)) until f.eof?
      io.close_write
      token = io.readline.strip
    end

    f.close
    f.unlink

    if $?.exitstatus == 0
      ct.open_send_log(:source, token, m_opts)
      ok
    else
      error('send config failed')
    end
  end
end

#export(ct, io, opts = {}) ⇒ Object (protected)

Parameters:

  • ct (Container)
  • io (IO)
  • opts (Hash) (defaults to: {})

Options Hash (opts):

  • :ctid (String)
  • :user (String)
  • :group (String)
  • :network_interfaces (Boolean) 


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# File 'lib/osctld/commands/container/send_config.rb', line 88

def export(ct, io, opts = {})
  exporter = OsCtl::Lib::Exporter::Zfs.new(ct, io)
  exporter.dump_metadata(
    'skel',
    id: opts[:ctid],
    user: opts[:user],
    group: opts[:group]
  )
  exporter.dump_configs do |dump|
    dump.user(File.read(ct.user.config_path))
    dump.group(File.read(ct.group.config_path))

    ct_cfg = ct.dump_config
    ct_cfg.delete('net_interfaces') unless opts[:network_interfaces]
    ct_cfg['user'] = opts[:user]
    ct_cfg['group'] = opts[:group]
    dump.container(OsCtl::Lib::ConfigFile.dump_yaml(ct_cfg))
  end
  exporter.dump_user_hook_scripts(Hook::Manager.list_all_scripts(ct))
  exporter.close
end