Class: OsCtld::Commands::Container::Chown

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

Instance Method Summary collapse

Methods inherited from Logged

#base_execute

Instance Method Details

#execute(ct) ⇒ Object 



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

def execute(ct)
  new_user = DB::Users.find(opts[:user], ct.pool)

  if new_user.nil?
    error!('user not found')
  elsif ct.user == new_user
    error!("already owned by #{new_user.name}")
  elsif ct.state != :stopped
    error!('container has to be stopped first')
  end

  Monitor::Master.demonitor(ct)

  old_user = ct.user

  manipulate([ct, new_user, old_user]) do
    # Double check state
    error!('container has to be stopped first') if ct.state != :stopped

    progress('Moving LXC configuration')

    # Ensure LXC home
    unless ct.group.setup_for?(new_user)
      dir = ct.group.userdir(new_user)

      FileUtils.mkdir_p(dir, mode: 0o751)
      File.chown(0, new_user.ugid, dir)
    end

    # Move CT dir
    syscmd("mv #{ct.lxc_dir} #{ct.lxc_dir(user: new_user)}")
    File.chown(0, new_user.ugid, ct.lxc_dir(user: new_user))

    # Chown assets
    File.chown(0, new_user.ugid, ct.log_path) if File.exist?(ct.log_path)

    # Switch user, regenerate configs
    ct.chown(new_user)

    # Configure datasets
    if ct.map_mode == 'zfs' \
       && (new_user.uid_map != old_user.uid_map || new_user.gid_map != old_user.gid_map)
      datasets = ct.datasets

      datasets.reverse_each do |ds|
        progress("Unmounting dataset #{ds.relative_name}")
        zfs(:unmount, nil, ds, valid_rcs: [1])
      end

      datasets.each do |ds|
        progress("Setting UID/GID mapping of #{ds.relative_name}")
        zfs(
          :set,
          "uidmap=\"#{ct.uid_map.map(&:to_s).join(',')}\" " \
          "gidmap=\"#{ct.gid_map.map(&:to_s).join(',')}\"",
          ds
        )

        progress("Remounting dataset #{ds.relative_name}")
        zfs(:mount, nil, ds)
      end
    end

    # Restart monitor
    Monitor::Master.monitor(ct)

    # Clear old LXC home if possible
    unless ct.group.has_containers?(old_user)
      progress('Cleaning up original LXC home')
      Dir.rmdir(ct.group.userdir(old_user))
    end
  end

  call_cmd(Commands::User::LxcUsernet)
  ok
end

#find ⇒ Object 



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

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