portainer/app/docker/helpers/taskHelper.js

angular.module('portainer.docker')
.factory('TaskHelper', [function TaskHelperFactory() {
  'use strict';

  var helper = {};

  helper.associateContainerToTask = function(task, containers) {
    for (var i = 0; i < containers.length; i++) {
      var container = containers[i];
      if (task.ContainerId === container.Id) {
        task.Container = container;
        break;
      }
    }
  };

  return helper;
}]);