ODF: "ceph-external-cluster-details-exporter.py" unable to adopt an external Ceph cluster with non-default RGW zone/pools.

Issue

The Python script ceph-external-cluster-details-exporter.pyis unable to adopt an external Ceph cluster with non-default RGW zone/pools.

Currently, the script to adopt/incorporate an external Ceph Cluster has no option to specify an alternate zone. This means that only Ceph Cluster with the default RGW zone/pool layout will work:

--- POOLS ---
POOL                       ID  PGS   STORED  OBJECTS     USED  %USED  MAX AVAIL
.rgw.root                   1   32  1.3 KiB        4   48 KiB      0     21 GiB
device_health_metrics       2    1      0 B        0      0 B      0     21 GiB
default.rgw.log             3   32  4.0 MiB      209   13 MiB   0.02     21 GiB
default.rgw.control         4   32      0 B        8      0 B      0     21 GiB
default.rgw.meta            5   32  1.7 KiB       10  108 KiB      0     21 GiB
default.rgw.buckets.index   6   32      0 B       11      0 B      0     21 GiB
default.rgw.buckets.data    7  512  119 GiB   30.58k  358 GiB  84.78     21 GiB

A system with an alternate zone/pool names configured (say: RogueOne) will not work:

--- POOLS ---
POOL                       ID  PGS   STORED  OBJECTS     USED  %USED  MAX AVAIL
.rgw.root                   1   32  1.3 KiB        4   48 KiB      0     21 GiB
device_health_metrics       2    1      0 B        0      0 B      0     21 GiB
RogueOne.rgw.log             3   32  4.0 MiB      209   13 MiB   0.02     21 GiB
RogueOne.rgw.control         4   32      0 B        8      0 B      0     21 GiB
RogueOne.rgw.meta            5   32  1.7 KiB       10  108 KiB      0     21 GiB
RogueOne.rgw.buckets.index   6   32      0 B       11      0 B      0     21 GiB
RogueOne.rgw.buckets.data    7  512  119 GiB   30.58k  358 GiB  84.78     21 GiB