Fix some errors in the document

If the recovery policy uses uppercase, an error will be reported.
This patch modifies these to lowercase.

Closes-Bug: #1914482
Co-Authored-By: zhangyangyang <zhangyangyang@unionpay.com>
Change-Id: Ic4bf5a4b19df07364c09fd46f1a92a809c77b241

api-ref/source/failover-segments.inc

@@ -36,12 +36,12 @@ recovery action to be followed when any host in a segment goes down. `enabled`
 attribute indicates whether notifications which belong to this segment will
 be dealt with. The possible `recovery_method` values are:
 
-- ``AUTO``. Auto recovery action.
-- ``RESERVED_HOST``. Reserved host recovery action.
-- ``AUTO_PRIORITY``. First executes auto and if auto fails then retried with
-  reserved host recover action.
-- ``RH_PRIORITY``. First executes reserved host and if it fails then retried
-  with reserved host recover action.
+- ``auto``. Auto recovery action.
+- ``reserved_host``. Reserved host recovery action.
+- ``auto_priority``. First executes auto and if auto fails then retried with
+  reserved host recovery action.
+- ``rh_priority``. First executes reserved host and if it fails then retried
+  with auto recovery action.
 
 You can filter on the `service_type`, `recovery_method` and `enabled` when you
 complete a list segments request.
@@ -98,8 +98,8 @@ Creates a segment.
 Creates a FailoverSegment with name, description, service_type, enabled and
 recovery_method. For `service_type` user can mention the name of service for
 which this segment is created. As of now user can mention `COMPUTE` as
-`service_type`. For `recovery_method` user can mention either `AUTO`,
-`RESERVED_HOST`, `AUTO_PRIORITY` or `RH_PRIORITY`. Segment name should be
+`service_type`. For `recovery_method` user can mention either `auto`,
+`reserved_host`, `auto_priority` or `rh_priority`. Segment name should be
 unique. For `enabled` user can mention `True` or `False` to enable/disable
 this segment.
 

api-ref/source/parameters.yaml

@@ -349,7 +349,7 @@ segment_recovery_method:
   required: true
   description: |
     Type of recovery if any host in this segment goes down. User can mention
-    either 'AUTO', 'RESERVED_HOST', 'AUTO_PRIORITY' or 'RH_PRIORITY'.
+    either 'auto', 'reserved_host', 'auto_priority' or 'rh_priority'.
 segment_service_type:
   type: string
   in: body

doc/api_samples/segments/segment-create-req.json

@@ -1,7 +1,7 @@
 {
     "segment": {
         "service_type": "COMPUTE",
-        "recovery_method": "AUTO",
+        "recovery_method": "auto",
         "name": "new_segment",
         "enabled": True
     }

doc/api_samples/segments/segment-create-resp.json

@@ -4,7 +4,7 @@
         "deleted": false,
         "created_at": "2017-04-21T08:59:53.991030",
         "description": null,
-        "recovery_method": "AUTO",
+        "recovery_method": "auto",
         "updated_at": null,
         "service_type": "COMPUTE",
         "deleted_at": null,

doc/api_samples/segments/segment-get-resp.json

@@ -4,7 +4,7 @@
         "deleted": false,
         "created_at": "2017-04-21T08:59:53.991030",
         "description": null,
-        "recovery_method": "AUTO",
+        "recovery_method": "auto",
         "updated_at": null,
         "service_type": "COMPUTE",
         "deleted_at": null,

doc/api_samples/segments/segment-update-resp.json

@@ -4,7 +4,7 @@
         "deleted": false,
         "created_at": "2017-04-21T08:59:54.000000",
         "description": null,
-        "recovery_method": "AUTO",
+        "recovery_method": "auto",
         "updated_at": "2017-04-21T09:47:03.748028",
         "service_type": "COMPUTE",
         "deleted_at": null,