During investigation of #incident-osd-cluster-all-infra-unready , it was found that a BYOVPC cluster with a single customer-supplied subnet completed installation, but the infra node machineset on the cluster was unable to identify the subnet in which to create the infra nodes.

The machinepool on hive had the correct configuration and subnetID. However, the machineset on cluster did not propagate the subnet id and was instead trying to identify the subnet via a tag `openshift-poc-w8rdr-private-us-east-1a`, which did not exist on the subnet, instead of the id.

Manually adjusting the infra machineSet to use the subnetID allowed the nodes to be created and the cluster recovered on its own.

This appears to have been the issue with a previous cluster provision failure [1] as well, but the cause was not fully understood at the time, it looks like.

We think this could be resolved by having the machineSet controller better match `.spec.template.spec.providerSpec.value.subnet` in the machineSet with the `.spec.platform.aws.subnets` specified in the machinePool, but obviously defer to you folks who know more about how that works under the covers.

[1] https://coreos.slack.com/archives/CCX9DB894/p1650655863315549?thread_ts=1650650880.642909&cid=CCX9DB894

Cluster info:

ID: 1sehv41od45s3h3c6idjde4maqa246oq
External ID: 8aa1452c-c8ce-47c2-90dc-48594eaffacf
Name: openshift-poc
State: ready
API URL: https://api.openshift-poc.0biu.p1.openshiftapps.com:6443
API Listening: internal
Console URL: https://console-openshift-console.apps.openshift-poc.0biu.p1.openshiftapps.com
Masters: 3
Infra: 2
Computes: 3
Product: rosa
Provider: aws
Version: 4.10.14
Region: us-east-1
Multi-az: false
CCS: true
Subnet IDs: [subnet-0a55bedf6a34db8f1]
PrivateLink: true
STS: true
Existing VPC: true
Channel Group: stable
Cluster Admin: true
Organization: Richard Fojta
Creator: richard.fojta@sentinelone.com
Email: richard.fojta@sentinelone.com
Created: 2022-05-26T12:07:51Z
Expiration: 0001-01-01T00:00:00Z
Shard: https://api.hivep05ue1.pfj0.p1.openshiftapps.com:6443