Bug 1833359

*** Bug 1833357 has been marked as a duplicate of this bug. ***

Closing.  No longer plan to backport this to 4.4.  Works in 4.5.

Validated on version - 
[miyadav@miyadav bugaws]$ oc get clusterversion
NAME      VERSION                             AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.4.0-0.nightly-2020-06-08-032819   True        False         28m     Cluster version is 4.4.0-0.nightly-2020-06-08-032819

Reproducible Always

Steps:
1.create IPI install AWS env.

2.Create DHCP Options set 

3.Update VPC with new DHCP options set

4.scale machineset - oc scale machineset miyadav-0806-kl9rb-worker-us-east-2c --replicas=2

5.once the node is attached to the new provisioned machine - 
[miyadav@miyadav bugaws]$ oc get machines -o wide
NAME                                         PHASE     TYPE        REGION      ZONE         AGE     NODE                                         PROVIDERID                              STATE
miyadav-0806-kl9rb-master-0                  Running   m4.xlarge   us-east-2   us-east-2a   36m     ip-10-0-145-125.us-east-2.compute.internal   aws:///us-east-2a/i-09d9838463b9c2db0   running
miyadav-0806-kl9rb-master-1                  Running   m4.xlarge   us-east-2   us-east-2b   36m     ip-10-0-182-113.us-east-2.compute.internal   aws:///us-east-2b/i-0a5dec738b71bad26   running
miyadav-0806-kl9rb-master-2                  Running   m4.xlarge   us-east-2   us-east-2c   36m     ip-10-0-220-102.us-east-2.compute.internal   aws:///us-east-2c/i-0ea9012a960cddaa0   running
miyadav-0806-kl9rb-worker-us-east-2a-pxg8x   Running   m4.large    us-east-2   us-east-2a   27m     ip-10-0-149-65.us-east-2.compute.internal    aws:///us-east-2a/i-0744ed63ddb02e8a2   running
miyadav-0806-kl9rb-worker-us-east-2b-xksmz   Running   m4.large    us-east-2   us-east-2b   27m     ip-10-0-166-26.us-east-2.compute.internal    aws:///us-east-2b/i-0f29760d6b8e301fd   running
miyadav-0806-kl9rb-worker-us-east-2c-nmjnt   Running   m4.large    us-east-2   us-east-2c   27m     ip-10-0-210-93.us-east-2.compute.internal    aws:///us-east-2c/i-06326fe41a1c04583   running
miyadav-0806-kl9rb-worker-us-east-2c-v59rd   Running   m4.large    us-east-2   us-east-2c   4m49s   ip-10-0-200-52.us-east-2.compute.internal    aws:///us-east-2c/i-0e208ce27ce837325   running


6.get csrs
[miyadav@miyadav bugaws]$ oc get csr 
NAME        AGE   REQUESTOR                                                                   CONDITION
csr-2gskn   23m   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Approved,Issued
csr-4v2xv   85s   system:node:ip-10-0-200-52.us-east-2.compute.internal                       Approved,Issued
csr-8rtbv   35m   system:node:ip-10-0-220-102.us-east-2.compute.internal                      Approved,Issued
csr-ftznb   98s   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Approved,Issued
.
.

7.describe the newest crs (created because of new node added to cluster )
 oc describe csr csr-4v2xv
Name:               csr-4v2xv
Labels:             <none>
Annotations:        <none>
CreationTimestamp:  Mon, 08 Jun 2020 16:03:34 +0530
Requesting User:    system:node:ip-10-0-200-52.us-east-2.compute.internal
Status:             Approved,Issued
Subject:
  Common Name:    system:node:ip-10-0-200-52.us-east-2.compute.internal
  Serial Number:  
  Organization:   system:nodes
Subject Alternative Names:
         DNS Names:     ip-10-0-200-52.example.com
         IP Addresses:  10.0.200.52
Events:  <none>

Actual & Expected :
domain name created in DHCP options set is added to Alternative names

8.oc get machine miyadav-0806-kl9rb-worker-us-east-2c-v59rd -o yaml (status will contain the domain as used in dhcp options set)

Actual & Expected :
.
.
status:
  addresses:
  - address: 10.0.200.52
    type: InternalIP
  - address: ip-10-0-200-52.us-east-2.compute.internal
    type: InternalDNS
  - address: ip-10-0-200-52.us-east-2.compute.internal
    type: Hostname
  - address: ip-10-0-200-52.example.com
    type: InternalDNS
  lastUpdated: "2020-06-08T10:34:44Z"
  nodeRef:
    kind: Node
    name: ip-10-0-200-52.us-east-2.compute.internal
    uid: aa4dd9a1-5d09-431c-98cf-2b1c6bd8349b
  phase: Running
  providerStatus:
    apiVersion: awsproviderconfig.openshift.io/v1beta1
    conditions:
    - lastProbeTime: "2020-06-08T10:30:03Z"
      lastTransitionTime: "2020-06-08T10:30:03Z"
      message: machine successfully created
      reason: MachineCreationSucceeded
      status: "True"
      type: MachineCreation
    instanceId: i-0e208ce27ce837325
    instanceState: running
    kind: AWSMachineProviderStatus


Additional Info:
None

Moving to VERIFIED

*** Bug 1846735 has been marked as a duplicate of this bug. ***

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:2445