RFE: Support for Route-Domain override in F5 IPAM-integrated CR

[adityoari]

Title

Support for Route-Domain override in F5 IPAM-integrated CR

Description

Enhance F5 CRs (VirtualServers, TransporServer) to expose and accept explicit Route-Domain ID

Actual Problem

Customer needs to override the default partition RD for the VS created by CIS due to network constraints.
With explicit addressing, they can append the %RD into virtualServerAddresses parameter value.
However, with F5 IPAM Controller integration using the ipamLabel parameter, there's no way to configure the %RD suffix.
Trying to manually append the %RD in the IPAM spec triggers validation error, and I don't suppose external IPAM providers even understands the %RD notation.

Solution Proposed

Expose, accept, and implement new parameter (e.g. ipamRD) in the CR spec to provide Route-Domain ID to be appended to the resulting AS3 declaration.
Sample:

spec:
  virtualServerName: "vs1"
  ipamLabel: Prod
  ipamRD: 10
  virtualServerPort: 80

Alternatives

An alternative would be to expose similar parameter in the containers.args of f5-ipam-controller, but this might completely change the format of the IP address returned by IPAM to CIS, resulting in changes in both IPAM & CIS.
Sample:

containers:
- args:
  - --orchestration=kubernetes
  - --ip-range='{"Dev":"10.0.0.40-10.0.0.49", "Prod":"10.0.0.100-10.0.0.109"}'
  - --route-domain=10

Additional context

Due to network environment constraints, customer requires VS to be in the different RD than the partition default RD used by the Pool Members.
See Issue #3416

[trinaths]

@adityoari is #3416 not duplicate of this issue ?

[adityoari]

@trinaths the symptoms & original scenarios were not actually the same, but I can see how the team might have a combined solution to solve both.

To reiterate, customer requires support of route-domain override:

1. as new IPAM-specific spec (ipamRD in the example above) of VirtualServer & TransportServer CRs
2. as %RD suffix in the spec.virtualServerAddress of IngressLink CR

[trinaths]

Created [CONTCNTR-4746] for internal tracking.