Fetch Cinder availability zones list for volume creation

We have to fetch and show Cinder availability zones list during volume
creation and volume creation from image.

Change-Id: I1c8746870d94c183f5ef510c1ce09b3fc9c84220
Closes-Bug: #1721286

openstack_dashboard/api/rest/cinder.py

@@ -414,3 +414,25 @@ class QuotaSets(generic.View):
             api.cinder.tenant_quota_update(request, project_id, **cinder_data)
         else:
             raise rest_utils.AjaxError(501, _('Service Cinder is disabled.'))
+
+
+@urls.register
+class AvailabilityZones(generic.View):
+    """API for cinder availability zones."""
+    url_regex = r'cinder/availzones/$'
+
+    @rest_utils.ajax()
+    def get(self, request):
+        """Get a list of availability zones.
+
+        The following get parameters may be passed in the GET
+        request:
+
+        :param detailed: If this equals "true" then the result will
+            include more detail.
+
+        The listing result is an object with property "items".
+        """
+        detailed = request.GET.get('detailed') == 'true'
+        result = api.cinder.availability_zone_list(request, detailed)
+        return {'items': [u.to_dict() for u in result]}

openstack_dashboard/static/app/core/images/steps/create-volume/create-volume.controller.js

@@ -150,7 +150,7 @@
     function init() {
       cinder.getVolumeTypes().success(onGetVolumeTypes);
       cinder.getAbsoluteLimits().success(onGetAbsoluteLimits);
-      nova.getAvailabilityZones().success(onGetAvailabilityZones);
+      cinder.getAvailabilityZones().success(onGetAvailabilityZones);
     }
 
     function onGetVolumeTypes(response) {

openstack_dashboard/static/app/core/images/steps/create-volume/create-volume.controller.spec.js

@@ -34,6 +34,13 @@
           }
         };
       },
+      getAvailabilityZones: function() {
+        return {
+          success: function(callback) {
+            return callback({ items: [{zoneName: 'zone1'}] });
+          }
+        };
+      },
       getAbsoluteLimits: angular.noop
     };
 
@@ -43,15 +50,6 @@
 
     beforeEach(inject(function ($injector, _$rootScope_, _$filter_) {
 
-      nova = {
-        getAvailabilityZones: function() {
-          return {
-            success: function(callback) {
-              return callback({ items: [{zoneName: 'zone1'}] });
-            }
-          };
-        }
-      };
       $scope = _$rootScope_.$new();
       $scope.image = {
         name: 'ImageName',
@@ -358,7 +356,7 @@
 
     it('not default the availability_zone if none present', function() {
 
-      nova.getAvailabilityZones = function() {
+      cinder.getAvailabilityZones = function() {
         return {
           success: function(callback) {
             return callback({ items: [] });

openstack_dashboard/static/app/core/openstack-service-api/cinder.service.js

@@ -46,6 +46,7 @@
       getVolumeSnapshots: getVolumeSnapshots,
       getExtensions: getExtensions,
       getQoSSpecs: getQoSSpecs,
+      getAvailabilityZones:getAvailabilityZones,
       createVolume: createVolume,
       getAbsoluteLimits: getAbsoluteLimits,
       getServices: getServices,
@@ -403,6 +404,25 @@
           toastService.add('error', gettext('Unable to update project quota data.'));
         });
     }
+
+    // Availability Zones
+
+    /**
+     * @name getAvailabilityZones
+     * @description
+     * Get a list of Availability Zones.
+     *
+     * The listing result is an object with property "items". Each item is
+     * an availability zone.
+     * @returns {Object} The result of the API call
+     */
+    function getAvailabilityZones() {
+      return apiService.get('/api/cinder/availzones/')
+        .error(function () {
+          toastService.add('error',
+                        gettext('Unable to retrieve the volume availability zones.'));
+        });
+    }
   }
 
 }());

openstack_dashboard/static/app/core/openstack-service-api/cinder.service.spec.js

@@ -222,6 +222,13 @@
         testInput: [
           42, {a: '1', b: '2'}, ['c', 'd']
         ]
+      },
+      {
+        func: 'getAvailabilityZones',
+        method: 'get',
+        path: '/api/cinder/availzones/',
+        error: 'Unable to retrieve the volume availability zones.',
+        testInput: []
       }
     ];
 

openstack_dashboard/test/api_tests/cinder_rest_tests.py

@@ -484,3 +484,21 @@ class CinderRestTestCase(test.TestCase):
         self.assertEqual(response.content.decode('utf-8'),
                          '"Service Cinder is disabled."')
         cc.tenant_quota_update.assert_not_called()
+
+    @test.create_stubs({api.base: ('is_service_enabled',)})
+    @mock.patch.object(cinder.api, 'cinder')
+    def test_availability_zones_get(self, cc):
+        request = self.mock_rest_request(GET={})
+        mock_az = mock.Mock()
+        mock_az.to_dict.return_value = {
+            'name': 'cinder',
+            'status': 'available'
+        }
+        cc.availability_zone_list.return_value = [mock_az]
+        self.mox.ReplayAll()
+
+        response = cinder.AvailabilityZones().get(request)
+        self.assertStatusCode(response, 200)
+        response_as_json = json.loads(response.content.decode('utf-8'))
+        self.assertEqual(response_as_json['items'][0]['name'], 'cinder')
+        cc.availability_zone_list.assert_called_once_with(request, False)