Fix api-ref for v3 volume group types

This patch is mainly to fix api-ref for v3 volume group types,
including:

1. add description and example for the API: show defaut group type
2. fix parameters: 'is_public' and 'description'
3. remove unused sample file: group-type-show-request.json

Change-Id: I29f160d8ed24473debb345b4ea91ee0545d711b1

api-ref/source/v3/group-types.inc

@@ -3,6 +3,8 @@
 Group types
 ===========
 
+To create a generic volume group, you must specify a group type.
+
 
 Update group type
 ~~~~~~~~~~~~~~~~~
@@ -11,8 +13,6 @@ Update group type
 
 Updates a group type.
 
-To create a generic volume group, you must specify a group type.
-
 Normal response codes: 200
 
 Error response codes: badRequest(400), forbidden(403), itemNotFound(404),
@@ -28,8 +28,8 @@ Request
    - group_type_id: group_type_id_1
    - group_type: group_type
    - name: name_16
-   - description: description_12
-   - is_public: is_public_2
+   - description: description_group_type_optional
+   - is_public: is_public_group_type_optional
 
 Request Example
 ---------------
@@ -45,9 +45,9 @@ Response Parameters
 
    - group_type: group_type
    - id: group_type_id_2
-   - is_public: is_public_1
+   - is_public: is_public_group_type_required
    - group_specs: group_specs
-   - description: description_12
+   - description: description_group_type_required
    - name: name_16
 
 Response Example
@@ -86,9 +86,9 @@ Response Parameters
    - group_type: group_type
    - id: group_type_id_2
    - name: name_16
-   - is_public: is_public_1
+   - is_public: is_public_group_type_required
    - group_specs: group_specs
-   - description: description_12
+   - description: description_group_type_required
 
 
 Response Example
@@ -98,6 +98,46 @@ Response Example
    :language: javascript
 
 
+Show default group type details
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. rest_method::  GET /v3/{project_id}/group_types/default
+
+Shows details for the default group type if configured.
+
+
+Normal response codes: 200
+
+Error response codes: itemNotFound(404)
+
+Request
+-------
+
+.. rest_parameters:: parameters.yaml
+
+   - project_id: project_id_path
+
+
+Response Parameters
+-------------------
+
+.. rest_parameters:: parameters.yaml
+
+   - group_type: group_type
+   - id: group_type_id_2
+   - name: name_16
+   - is_public: is_public_group_type_required
+   - group_specs: group_specs
+   - description: description_group_type_required
+
+
+Response Example
+----------------
+
+.. literalinclude:: ./samples/group-type-default-response.json
+   :language: javascript
+
+
 Delete group type
 ~~~~~~~~~~~~~~~~~
 
@@ -149,7 +189,7 @@ Response Parameters
 
    - group_types: group_types
    - id: group_type_id_2
-   - group_specs: group_specs_2
+   - group_specs: group_specs
    - name: name_16
 
 Response Example
@@ -166,8 +206,6 @@ Create group type
 
 Creates a group type.
 
-To create a generic volume group, you must specify a group type.
-
 
 Normal response codes: 202
 
@@ -183,8 +221,8 @@ Request
    - project_id: project_id_path
    - group_type: group_type
    - name: name_16
-   - description: description_12
-   - is_public: is_public_2
+   - description: description_group_type_optional
+   - is_public: is_public_group_type_optional
    - group_specs: group_specs
 
 Request Example
@@ -201,9 +239,9 @@ Response Parameters
 
    - group_type: group_type
    - id: group_type_id_2
-   - is_public: is_public_1
+   - is_public: is_public_group_type_required
    - group_specs: group_specs
-   - description: description_12
+   - description: description_group_type_required
    - name: name_16
 
 

api-ref/source/v3/parameters.yaml

@@ -879,12 +879,6 @@ description_11:
   in: body
   required: false
   type: string
-description_12:
-  description: |
-    The group type description.
-  in: body
-  required: false
-  type: string
 description_13:
   description: |
     The group description.
@@ -964,6 +958,18 @@ description_group_true:
   in: body
   required: true
   type: string
+description_group_type_optional:
+  description: |
+    The group type description.
+  in: body
+  required: false
+  type: string
+description_group_type_required:
+  description: |
+    The group type description.
+  in: body
+  required: true
+  type: string
 description_volume_type_optional:
   description: |
     The volume type description.
@@ -1409,18 +1415,18 @@ is_incremental:
   in: body
   required: false
   type: boolean
-is_public_1:
-  description:
-    Whether the group is publicly visible.
-  in: body
-  required: false
-  type: boolean
-is_public_2:
-  description:
+is_public_group_type_optional:
+  description: |
     Whether the group type is publicly visible.
   in: body
   required: false
   type: boolean
+is_public_group_type_required:
+  description: |
+    Whether the group type is publicly visible.
+  in: body
+  required: true
+  type: boolean
 is_public_volume_type_optional:
   description: |
     Whether the volume type is publicly visible.

api-ref/source/v3/samples/group-type-default-response.json

@@ -0,0 +1,9 @@
+{
+    "group_type": {
+        "id": "7270c56e-6354-4528-8e8b-f54dee2232c8",
+        "name": "group-type-test",
+        "description": "default group type",
+        "is_public": "true",
+        "group_specs": {}
+    }
+}

api-ref/source/v3/samples/group-type-show-request.json

@@ -1,9 +0,0 @@
-{
-    "group_type": {
-        "id": "289da7f8-6440-407c-9fb4-7db01ec49164",
-        "name": "grp-type-001",
-        "group_specs": {
-            "consistent_group_snapshot_enabled": "<is> False"
-        }
-    }
-}

api-ref/source/v3/samples/group-type-update-request.json

@@ -2,6 +2,6 @@
     "group_type": {
         "name": "grp-type-001",
         "description": "group type 0001",
-        "is_public": true,
+        "is_public": true
     }
 }