portainer/app/components/swarm/swarmController.js

angular.module('swarm', [])
  .controller('SwarmController', ['$scope', 'Info', 'Version', 'Settings',
    function ($scope, Info, Version, Settings) {

      $scope.sortType = 'Name';
      $scope.sortReverse = true;
      $scope.info = {};
      $scope.docker = {};
      $scope.swarm = {};

      $scope.order = function(sortType) {
        $scope.sortReverse = ($scope.sortType === sortType) ? !$scope.sortReverse : false;
        $scope.sortType = sortType;
      };

      Version.get({}, function (d) {
        $scope.docker = d;
      });
      Info.get({}, function (d) {
        $scope.info = d;
        extractSwarmInfo(d);
      });

      function extractSwarmInfo(info) {
        // Swarm info is available in SystemStatus object
        var systemStatus = info.SystemStatus;
        // Swarm strategy
        $scope.swarm[systemStatus[1][0]] = systemStatus[1][1];
        // Swarm filters
        $scope.swarm[systemStatus[2][0]] = systemStatus[2][1];
        // Swarm node count
        var node_count = parseInt(systemStatus[3][1], 10);
        $scope.swarm[systemStatus[3][0]] = node_count;

        $scope.swarm.Status = [];
        extractNodesInfo(systemStatus, node_count);
      }

      function extractNodesInfo(info, node_count) {
        // First information for node1 available at element #4 of SystemStatus
        // The next 10 elements are information related to the node
        var node_offset = 4;
        for (i = 0; i < node_count; i++) {
          extractNodeInfo(info, node_offset);
          node_offset += 9;
        }
      }

      function extractNodeInfo(info, offset) {
        var node = {};
        node.name = info[offset][0];
        node.ip = info[offset][1];
        node.id = info[offset + 1][1];
        node.status = info[offset + 2][1];
        node.containers = info[offset + 3][1];
        node.cpu = info[offset + 4][1].split('/')[1];
        node.memory = info[offset + 5][1].split('/')[1];
        node.labels = info[offset + 6][1];
        node.version = info[offset + 8][1];
        $scope.swarm.Status.push(node);
      }
    }]);