If the Hostname and Name are not the same - in a cluster - there are issues

Environment

Declarative Onboarding Version: 1.42.0-9
BIG-IP Version: 17.1.1

Summary

When a DO is sent to an HA pair that wasn't configured with DO - an error like this happens: The requested system device (/Common/hostname.domain.com) was not found.

It seems there is some backend code that is using / assuming the hostname / Device Name are the same and it causes issues with DO.

The result is that it attempts to Rollback, and the system is left with a DO config in its local config DO also as verified by posting to: /mgmt/shared/declarative-onboarding/config

Steps To Reproduce

Steps to reproduce the behaviour:

Build an minimal HA Cluster - HA-VLAN, HA-SelfIP, Default Route, Trust, Config Sync - etc.

Deploy a basic DO

{
"id": "4ed4ad05-9aea-4d77-ab90-436d00638e71",
"selfLink": "https://localhost/mgmt/shared/declarative-onboarding/task/4ed4ad05-9aea-4d77-ab90-436d00638e71",
"result": {
    "class": "Result",
    "code": 202,
    "status": "ROLLING_BACK",
    "dryRun": false,
    "message": "invalid config - rolling back",
    "errors": [
        "tryUntil: max tries reached: 01020036:3: The requested system device (/Common/hostname.domain.com) was not found."
    ]
},
"declaration": {
    "schemaVersion": "1.11.0",
    "class": "Device",
    "async": true,
    "controls": {
        "class": "Controls",
        "trace": true,
        "logLevel": "debug",
        "dryRun": false,
        "traceResponse": false
    },
    "Common": {
        "class": "Tenant",
        "myDbVariables": {
            "class": "DbVariables",
            "ui.advisory.enabled": "true",
            "ui.advisory.color": "red",
            "ui.advisory.text": "Deployed with DO. Do not make any change directly on the BIG-IP or those changes may be lost."
        }
    }
}
}

Expected Behavior

I wouldn't think there needs to be a consistent Device Name and Hostname. A POST'ed DO fails stating it cant find the hostname even though I posted the declaration to the Active Device's IP address.

Actual Behavior

POST fails with an error.

F5Networks / f5-declarative-onboarding