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  1. OpenShift Bugs
  2. OCPBUGS-36871

aws autoscaler broken with dhcp option domain-name

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      The CSR approval mechanism for client CSRs was checking for an exact match between the node name and the internal DNS entry on the Machine.
      The node name is always lowercased, so, in cases where the internal DNS is not all lowercase, the check failed.
      DNS is case-insensitive, so the check has been made case-insensitive.
      Nodes with mixed casing DNS will now be able to correctly have CSRs approved.
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      The CSR approval mechanism for client CSRs was checking for an exact match between the node name and the internal DNS entry on the Machine. The node name is always lowercased, so, in cases where the internal DNS is not all lowercase, the check failed. DNS is case-insensitive, so the check has been made case-insensitive. Nodes with mixed casing DNS will now be able to correctly have CSRs approved.
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      Description of problem:

      Customer has a cluster in AWS that was born on an old OCP version (4.7) and was upgraded all the way through 4.15.
During the lifetime of the cluster they changed the DHCP option in AWS to "domain name". 
During the node provisioning during MachineSet scaling the Machine can successfully be created at the cloud provider but the Node is never added to the cluster. 
The CSR remain pending and do not get auto-approved

This issue is eventually related or similar to the bug fixed via https://issues.redhat.com/browse/OCPBUGS-29290

      Version-Release number of selected component (if applicable):

      How reproducible:

      Steps to Reproduce:

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      Actual results:

         CSR don't get auto approved. New nodes have a different domain name when CSR is approved manually.

      Expected results:

          CSR should get approved automatically and domain name scheme should not change.

      Additional info:

            joelspeed Joel Speed
            rhn-support-afaulhab Anne Faulhaber
            Huali Liu Huali Liu
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              Created:
              Updated: