revert(azure): revert removal (#3890)

* Revert "fix(sidebar): show docker sidebar when needed (#3852)"

This reverts commit 59da17dde4.

* Revert "refactor(azure): remove Azure ACI endpoint support (#3803)"

This reverts commit 493de20540.

app/azure/services/azureService.js

@@ -0,0 +1,72 @@
+angular.module('portainer.azure').factory('AzureService', [
+  '$q',
+  'Azure',
+  'SubscriptionService',
+  'ResourceGroupService',
+  'ContainerGroupService',
+  'ProviderService',
+  function AzureServiceFactory($q, Azure, SubscriptionService, ResourceGroupService, ContainerGroupService, ProviderService) {
+    'use strict';
+    var service = {};
+
+    service.deleteContainerGroup = function (id) {
+      return Azure.delete(id, '2018-04-01');
+    };
+
+    service.createContainerGroup = function (model, subscriptionId, resourceGroupName) {
+      return ContainerGroupService.create(model, subscriptionId, resourceGroupName);
+    };
+
+    service.subscriptions = function () {
+      return SubscriptionService.subscriptions();
+    };
+
+    service.containerInstanceProvider = function (subscriptions) {
+      return retrieveResourcesForEachSubscription(subscriptions, ProviderService.containerInstanceProvider);
+    };
+
+    service.resourceGroups = function (subscriptions) {
+      return retrieveResourcesForEachSubscription(subscriptions, ResourceGroupService.resourceGroups);
+    };
+
+    service.containerGroups = function (subscriptions) {
+      return retrieveResourcesForEachSubscription(subscriptions, ContainerGroupService.containerGroups);
+    };
+
+    service.aggregate = function (resourcesBySubcription) {
+      var aggregatedResources = [];
+      Object.keys(resourcesBySubcription).forEach(function (key) {
+        aggregatedResources = aggregatedResources.concat(resourcesBySubcription[key]);
+      });
+      return aggregatedResources;
+    };
+
+    function retrieveResourcesForEachSubscription(subscriptions, resourceQuery) {
+      var deferred = $q.defer();
+
+      var resources = {};
+
+      var resourceQueries = [];
+      for (var i = 0; i < subscriptions.length; i++) {
+        var subscription = subscriptions[i];
+        resourceQueries.push(resourceQuery(subscription.Id));
+      }
+
+      $q.all(resourceQueries)
+        .then(function success(data) {
+          for (var i = 0; i < data.length; i++) {
+            var result = data[i];
+            resources[subscriptions[i].Id] = result;
+          }
+          deferred.resolve(resources);
+        })
+        .catch(function error(err) {
+          deferred.reject({ msg: 'Unable to retrieve resources', err: err });
+        });
+
+      return deferred.promise;
+    }
+
+    return service;
+  },
+]);