Enhance the IBM MQ managed .NET Core client to connect to an OpenShift queue manager with mutual TLS

System: IBM RPA
Actor: Dev team

IBM RPA is a new offering built ontop of the recently aquired WDG Automation product. As part of the "IBMifying" process we are porting the backend API server (and other services) to OpenShift. Part of this work involves connecting a managed .NET Core client to an IBM MQ queue manager hosted in OpenShift and configured for mTLS communication. The issue is the managed .NET Core client is not sending the Hostname SNI header with the TLS certificate, so the OpenShift route is unable to redirect the connection request to the queue manager service.

Description:
The SNI Hostname header is not being set from a managed .NET Core client with mutual TLS configuration. This is due to a limitiation in the managed .NET environment.

Attempting to connect to a queue manager in OpenShift via a Route configured to redirect on SNI Hostname instead redirects the queue manager connection to the default landing page as the managed .NET MQ client is passing an asterisk ("*") instead of the hostname.

The connection information is as follows when testing on a Java queue manager application (note: the host_name):

listening on 2456...
Reading TLS Header. Aiming for 5
Address 0 1 2 3 4 5 6 7 8 9 A B C D E F
------- -------- -------- -------- --------
000000: 16030300 9C .....
------- -------- -------- -------- --------
TLS Header read in 1
Reading TLS record. Aiming for 161
Address 0 1 2 3 4 5 6 7 8 9 A B C D E F
------- -------- -------- -------- --------
000000: 16030300 9C010000 98030360 B0E6A542 ...........`...B
000010: 8EC8E601 65F1B8D0 86C7B139 9DF1C965 ....e......9...e
000020: 9E357FCB 4E4A4033 D2B22500 002C00FF .5..NJ@3..%..,..
000030: C02CC02B C024C023 C00AC009 C008C030 .,.+.$.#.......0
000040: C02FC028 C027C014 C013C012 009D009C ./.(.'..........
000050: 003D003C 0035002F 000A0100 00430000 .=.<.5./.....C..
000060: 00060004 0000012A 000A0008 00060017 .......*........
000070: 00180019 000B0002 0100000D 00120010 ................
000080: 04010201 05010601 04030203 05030603 ................
000090: 00050005 01000000 00001200 00001700 ................
0000A0: 00 .
------- -------- -------- -------- --------
Full TLS Record read in 1
Record version: TLSv1.2
Hello version: TLSv1.2
Found SNI of: type=host_name (0), value=*