Adding OpenStack volume availability_zones

Adding OpenStack volume availability_zones

lib/fog/openstack/models/volume/availability_zone.rb

@@ -0,0 +1,13 @@
+require 'fog/openstack/models/model'
+
+module Fog
+  module Volume
+    class OpenStack
+      class AvailabilityZone < Fog::OpenStack::Model
+        identity :zoneName
+
+        attribute :zoneState
+      end
+    end
+  end
+end

lib/fog/openstack/models/volume/availability_zones.rb

@@ -0,0 +1,17 @@
+require 'fog/openstack/models/collection'
+require 'fog/openstack/models/volume/availability_zone'
+
+module Fog
+  module Volume
+    class OpenStack
+      class AvailabilityZones < Fog::OpenStack::Collection
+        model Fog::Volume::OpenStack::AvailabilityZone
+
+        def all(options = {})
+          data = service.list_zones(options)
+          load_response(data, 'availabilityZoneInfo')
+        end
+      end
+    end
+  end
+end

lib/fog/openstack/requests/volume/list_zones.rb

@@ -0,0 +1,32 @@
+module Fog
+  module Volume
+    class OpenStack
+      class Real
+        def list_zones(options = {})
+          request(
+            :expects => 200,
+            :method  => 'GET',
+            :path    => 'os-availability-zone.json',
+            :query   => options
+          )
+        end
+      end
+
+      class Mock
+        def list_zones(options = {})
+          Excon::Response.new(
+            :body   => {
+              "availabilityZoneInfo" => [
+                {
+                  "zoneState" => { "available" => true },
+                  "zoneName"  => "nova"
+                }
+              ]
+            },
+            :status => 200
+          )
+        end
+      end
+    end
+  end
+end

lib/fog/openstack/volume.rb

@@ -15,6 +15,9 @@ module Fog
       model       :volume
       collection  :volumes
 
+      model       :availability_zone
+      collection  :availability_zones
+
       model       :volume_type
       collection  :volume_types
 
@@ -31,6 +34,8 @@ module Fog
       request :extend_volume
       request :delete_volume
 
+      request :list_zones
+
       request :list_volume_types
       request :get_volume_type_details
 

tests/openstack/requests/volume/availability_zone_tests.rb

@@ -0,0 +1,13 @@
+Shindo.tests('Fog::Volume[:openstack] | availability zone requests', ['openstack']) do
+
+  @flavor_format = {
+    'zoneName'  => String,
+    'zoneState' => Hash,
+  }
+
+  tests('success') do
+    tests('#list_zones').data_matches_schema({'availabilityZoneInfo' => [@flavor_format]}) do
+      Fog::Volume[:openstack].list_zones.body
+    end
+  end
+end