administrator dashboard for observing the Docker container pool

app/assets/javascripts/dashboard.js

@@ -0,0 +1,35 @@
+$(function() {
+  var REFRESH_INTERVAL = 5000;
+
+  var refreshData = function() {
+    var jqxhr = $.ajax({
+      dataType: 'json',
+      method: 'GET'
+    });
+    jqxhr.done(updateView);
+  };
+
+  var updateProgressBar = function(progress_bar, data) {
+    var percentage = Math.round(data.quantity / data.pool_size * 100);
+    progress_bar.attr({
+      'aria-valuemax': data.pool_size,
+      'aria-valuenow': data.quantity,
+      style: 'width: ' + percentage + '%'
+    });
+    progress_bar.html(data.quantity);
+  };
+
+  var updateView = function(response) {
+    _.each(response.docker, function(data) {
+      var row = $('tbody tr[data-id=' + data.id + ']');
+      $('.pool-size', row).html(data.pool_size);
+      var progress_bar = $('.quantity .progress .progress-bar', row);
+      updateProgressBar(progress_bar, data);
+    });
+  };
+
+  if ($.isController('dashboard')) {
+    refreshData();
+    setInterval(refreshData, REFRESH_INTERVAL);
+  }
+});