docs: function(mode, targetHost, system, containerDef, container, out, cb) {
      if (container.specific && container.specific.dockerContainerId) {
        var stopCmd = commands.kill.replace('__TARGETID__', container.specific.dockerContainerId);
        executor.exec(mode, stopCmd, config.imageCachePath, out, function(err) {
          out.preview({cmd: stopCmd, host: 'localhost'});
          if (err && err.code !== 2) { cb(err); } else { cb(); }
        });
      }
      else {
        cb();
      }
    }