Adding ocean spark cluster spark core hours

api/services/ocean/spark/paths/clusterSparkCoreHours.yaml

@@ -0,0 +1,34 @@
+summary: Ocean Spark
+
+get:
+  summary: "Cluster Spark Core Hours"
+  description: >
+    Gets the number of core hours applications have consumed.
+  operationId: "OceanSparkClusterSparkCoreHours"
+  tags:
+    - "Ocean Spark"
+  parameters:
+    - $ref: "../../../../commons/parameters/nonRequiredAccountId.yaml"
+    - name: clusterId
+      in: query
+      required: false
+      schema:
+        type: array
+        items:
+          "$ref": "../schemas/oceanSparkClusterId.yaml"
+      collectionFormat: multi
+    - in: query
+      name: period
+      required: false
+      example: "2021-11"
+      description: >
+        The month to query from.
+      schema:
+        format: date-time
+        type: string
+
+  responses:
+    200:
+      $ref: "../responses/sparkCoreHours.yaml"
+    400:
+      description: "Bad Request"

api/services/ocean/spark/responses/sparkCoreHours.yaml

@@ -0,0 +1,17 @@
+description: Number of spark core hours consumed by cluster
+content:
+  application/json:
+    schema:
+      allOf:
+        - $ref: "../../../../commons/schemas/responseItemWrapper.yaml"
+        - type: object
+          properties:
+            response:
+              type: object
+              description: >
+                response body
+              properties:
+                items:
+                  type: array
+                  items:
+                    $ref: "../schemas/oceanSparkClusterSparkCoreHours.yaml"

api/services/ocean/spark/schemas/oceanSparkClusterSparkCoreHours.yaml

@@ -0,0 +1,14 @@
+type: object
+required:
+- id
+- coreHours
+description: >
+  Object that holds a pair of ocean cluster id and core hours that this cluster has consumed.
+properties:
+  id:
+    $ref: "oceanSparkClusterId.yaml"
+  coreHours:
+    type: number
+    description: >
+      Number of core hours that the cluster has consumed.
+    example: 99

api/spot.yaml

@@ -780,6 +780,8 @@ paths:
     $ref: services/ocean/spark/paths/clusters.yaml
   /ocean/spark/cluster/{clusterId}:
     $ref: services/ocean/spark/paths/cluster.yaml
+  /ocean/spark/cluster/sparkCoreHours:
+    $ref: services/ocean/spark/paths/clusterSparkCoreHours.yaml
   /ocean/spark/cluster/{clusterId}/appCompletionTrend:
     $ref: services/ocean/spark/paths/clusterAppCompletionTrend.yaml
   /ocean/spark/cluster/{clusterId}/appLoadHistory: