rgw: update scaledObject resource

Update ScaledObject Resource to use correct metric.
ceph_rgw_put is not availabe. Using ceph_rgw_op_put_obj_ops instead.

Signed-off-by: Santosh <sapillai@redhat.com>

Documentation/Storage-Configuration/Monitoring/ceph-monitoring.md

@@ -321,17 +321,18 @@ metadata:
  namespace: rook-ceph
 spec:
  scaleTargetRef:
-   kind: Deployment
-   name: rook-ceph-rgw-my-store-a # deployment for the autoscaling
+   apiVersion: ceph.rook.io/v1
+   kind: CephObjectStore
+   name: my-store # name of the cephObjectStore resource
  minReplicaCount: 1
  maxReplicaCount: 5
  triggers:
  - type: prometheus
    metadata:
      serverAddress: http://rook-prometheus.rook-ceph.svc:9090
-     metricName: collecting_ceph_rgw_put
+     metricName: ceph_rgw_put_collector
      query: |
-       sum(rate(ceph_rgw_put[2m])) # prometheus query used for autoscaling
+       sum(rate(ceph_rgw_op_put_obj_ops[2m])) # prometheus query used for autoscaling
      threshold: "90"
 ```
 

deploy/examples/monitoring/keda-rgw.yaml

@@ -16,5 +16,5 @@ spec:
         serverAddress: http://rook-prometheus.rook-ceph.svc:9090
         metricName: ceph_rgw_put_collector
         query: |
-          sum(rate(ceph_rgw_put[2m]))
+          sum(rate(ceph_rgw_op_put_obj_ops[2m]))
         threshold: "90"