Bug 1990573

Summary: Username annotation error when byoh Windows have uppercase hostname
Product: OpenShift Container Platform Reporter: gaoshang <sgao>
Component: Windows ContainersAssignee: elango siva <esiva>
Status: CLOSED ERRATA QA Contact: Ronnie Rasouli <rrasouli>
Severity: low Docs Contact:
Priority: medium    
Version: 4.8CC: aos-bugs, esiva, team-winc
Target Milestone: ---   
Target Release: 4.10.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2022-03-28 09:36:25 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2016712    

Description gaoshang 2021-08-05 16:29:10 UTC
Description of problem:
Username annotation error when byoh Windows have uppercase hostname, see 
# oc describe node ec2amaz-b08e1ea
...
Annotations:        k8s.ovn.org/hybrid-overlay-distributed-router-gateway-mac: 00-15-5D-16-35-6A
                    k8s.ovn.org/hybrid-overlay-node-subnet: 10.132.5.0/24
                    volumes.kubernetes.io/controller-managed-attach-detach: true
                    windowsmachineconfig.openshift.io/pub-key-hash: 1df2c166b1c401180523270e9cf6bc2cd2724b9279ea65668a3b95298525a0f5
--------------------------------------------------------------------
                    windowsmachineconfig.openshift.io/username:
                      -----BEGIN ENCRYPTED DATA-----<wmcoMarker><wmcoMarker>wx4EBwMIpTinju5uPHNglF9/a9tDTfvQ50rAUOJ4yhrS5gGaFYjEIX9kiBTU1d11<wmcoMarker>uD+4vCYb...
--------------------------------------------------------------------

CreationTimestamp:  Thu, 05 Aug 2021 11:20:40 -0400

Version-Release number of selected component (if applicable):
WCMO build from master branch d3723568aa90ff0b85d2dd919450a5f4bde65c32
OCP version: 4.8.0-0.nightly-2021-08-04-135121

How reproducible:
always

Steps to Reproduce:
1. Install UPI cluster on baremetal
2. Create Windows machine manually with uppercase hostname, e.g. EC2AMAZ-B08E1EA
3. Add Windows IP to windows-instances configmap
4. Wait and check WMCO bootstrapping Windows machine

Actual results:
Username annotation error

Expected results:
Username annotation should correct

Additional info:

Comment 2 Sebastian Soto 2021-08-09 17:02:29 UTC
This is a cosmetic issue, and does not have an impact on functionality.
This can be resolved by removing the start/end tags in the encrypt function https://github.com/openshift/windows-machine-config-operator/blob/ccae1dd992a0f34702df23c76f3659f796ec64e0/pkg/crypto/crypto.go#L37 ,
so that they are removed before setting the annotation
and adding them back after reading from the annotation in the decrypt function https://github.com/openshift/windows-machine-config-operator/blob/ccae1dd992a0f34702df23c76f3659f796ec64e0/pkg/crypto/crypto.go#L68 
so that the data can be properly read.

Comment 3 elango siva 2021-10-25 13:58:09 UTC
while testing, pls test upgrade scenario as well.

Comment 4 gaoshang 2021-11-15 12:21:13 UTC
This bug has been verified with upgrading OCP 4.9 to 4.10 and passed, thanks.

Steps:
Before upgrading, BYOH username encrypted as:

# oc get node ip-10-0-130-192.us-east-2.compute.internal -oyaml
apiVersion: v1
kind: Node
metadata:
  annotations:
    ...
windowsmachineconfig.openshift.io/username: '-----BEGIN ENCRYPTED DATA-----<wmcoMarker><wmcoMarker>wx4EBwMIG4+UMsoPDMpgGxWFEJ8fqwmXazexgZQMOm/S5gGYB4WkCnKp/wCNooCv<wmcoMarker>RljZMA5e6OqzYDlzsxcnzrvvq9hgkylYvZWIL82Wkf1ugvQbl6eaANxU7DHR+rGt<wmcoMarker>oj/glwA=<wmcoMarker>=VOPp<wmcoMarker>-----END

After upgrading, it changed to:

# oc get node ip-10-0-130-192.us-east-2.compute.internal -oyaml
apiVersion: v1
kind: Node
metadata:
  annotations:
    ...
    windowsmachineconfig.openshift.io/username: wx4EBwMItKKLfIRmMupgsKdiPe81LoBJ4ScVdgyZY5nS5gG1b6vrkHaU+SgLwPCa<wmcoMarker>j0IY8RD7PLJdZ1vj8yi39alKEZPcxqXBlxPRzcFfpk6aE+UklSdWVDHndTDGZaVL<wmcoMarker>7kDgKQA=<wmcoMarker>=7zV1

Comment 7 errata-xmlrpc 2022-03-28 09:36:25 UTC
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 (Moderate: Windows Container Support for Red Hat OpenShift 5.0.0 [security update]), 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/RHSA-2022:0577