RAID interface to support JBOD volumes

Adding 'JBOD' to the list of accepted RAID levels.

Closes-Bug: #1572511
Change-Id: I596b26d10331aed9696c8fbd75b9e1d683af8587

ironic/drivers/raid_config_schema.json

@@ -9,8 +9,8 @@
                 "properties": {
                     "raid_level": {
                         "type": "string",
-                        "enum": [ "0", "1", "2", "5", "6", "1+0", "5+0", "6+0" ],
+                        "enum": [ "JBOD", "0", "1", "2", "5", "6", "1+0", "5+0", "6+0" ],
-                        "description": "RAID level for the logical disk. Valid values are '0', '1', '2', '5', '6', '1+0', '5+0' and '6+0'. Required."
+                        "description": "RAID level for the logical disk. Valid values are 'JBOD', 0', '1', '2', '5', '6', '1+0', '5+0' and '6+0'. Required."
                     },
                     "size_gb": {
                         "anyOf": [{

ironic/tests/unit/common/test_raid.py

@@ -141,6 +141,11 @@ class ValidateRaidConfigurationTestCase(base.TestCase):
                           raid_config,
                           raid_config_schema=self.schema)
 
+    def test_validate_configuration_with_jbod_volume(self):
+        raid_config = json.loads(raid_constants.RAID_CONFIG_JBOD_VOLUME)
+        raid.validate_configuration(raid_config,
+                                    raid_config_schema=self.schema)
+
     def test_validate_configuration_custom_schema(self):
         raid_config = json.loads(raid_constants.CUSTOM_SCHEMA_RAID_CONFIG)
         schema = json.loads(raid_constants.CUSTOM_RAID_SCHEMA)

ironic/tests/unit/raid_constants.py

@@ -196,6 +196,17 @@ RAID_CONFIG_ADDITIONAL_PROP = '''
 }
 '''
 
+RAID_CONFIG_JBOD_VOLUME = '''
+{
+  "logical_disks": [
+      {
+       "raid_level": "JBOD",
+       "size_gb": 100
+      }
+  ]
+}
+'''
+
 CUSTOM_SCHEMA_RAID_CONFIG = '''
 {
   "logical_disks": [

releasenotes/notes/raid-to-support-jbod-568f88207b9216e2.yaml

@@ -0,0 +1,3 @@
+---
+features:
+  - Added support for JBOD volumes in RAID configuration.