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add workflow to use cnv qcow2 cbt #2055

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383631c
add workflow to use cnv qcow2 cbt
weshayutin Jan 14, 2026
52659ad
make cirros-test-2 have two volumes
weshayutin Jan 14, 2026
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46 changes: 46 additions & 0 deletions ...lications/virtual-machines/cirros-test/3-vms/cirros-test-with-CNV-CBT/README.md
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# get this party started

1. ensure you have a default storage class selected
```
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@shubham-pampattiwar shubham-pampattiwar Jan 16, 2026

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Note: command to set rbd as default is as follows:

oc patch storageclass ocs-storagecluster-ceph-rbd -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'

ocs-storagecluster-ceph-rbd (default) openshift-storage.rbd.csi.ceph.com Delete Immediate true 7h50m
```

2. Create the VM's
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@shubham-pampattiwar shubham-pampattiwar Jan 16, 2026

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Before creating the VMs, ensure you already have the NS created for e.g. oc create ns cirros-test-cont

Note.. these vm's already have the label for changeBlockTracking: true

```
oc create -f cirros-test-1.yaml , can also include test-2,3
```

3. Create the pv/pvc that will store the qocw2 snapshots
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@coderabbitai coderabbitai bot Jan 14, 2026

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⚠️ Potential issue | 🟡 Minor

Typo: "qocw2" should be "qcow2".

-3. Create the pv/pvc that will store the qocw2 snapshots
+3. Create the pv/pvc that will store the qcow2 snapshots
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
3. Create the pv/pvc that will store the qocw2 snapshots
3. Create the pv/pvc that will store the qcow2 snapshots
🤖 Prompt for AI Agents 
In
`@tests/e2e/sample-applications/virtual-machines/cirros-test/3-vms/cirros-test-with-CNV-CBT/README.md`
at line 15, Fix the typo in the README: replace the incorrect string "qocw2"
with the correct disk format name "qcow2" in the README.md text ("3. Create the
pv/pvc that will store the qocw2 snapshots") so the line reads "3. Create the
pv/pvc that will store the qcow2 snapshots".


```
oc create -f pushBackupPV.yaml
```

4. Create an optional filebrowsers container to inspect files on the above pv/pvc

```
oc create -f filebrowser.yaml
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@shubham-pampattiwar shubham-pampattiwar Jan 16, 2026

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Use our own quay image to avoid getting into docker rate limiting issues:

oc set image deployment/pvc-browser browser=quay.io/konveyor/oadp-vmfr-access-filebrowser:latest

```

5. Create the virtualMachineBackupTracker instance

```
oc create -f virtualMachineBackupTracker.yaml
```

6. Take a full andn incremental backup

Full: the first backup will always be a full backup
```
oc create -f virtualMachineBackupFull.yaml
```
Incremetnal: any new backup using the same tracker will be incremental
Comment on lines +33 to +39
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⚠️ Potential issue | 🟡 Minor

Typos in backup section.

Suggested fixes 
-6. Take a full andn incremental backup
+6. Take a full and incremental backup
-Incremetnal: any new backup using the same tracker will be incremental
+Incremental: any new backup using the same tracker will be incremental
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
6. Take a full andn incremental backup
Full: the first backup will always be a full backup
```
oc create -f virtualMachineBackupFull.yaml
```
Incremetnal: any new backup using the same tracker will be incremental
6. Take a full and incremental backup
Full: the first backup will always be a full backup
🧰 Tools
🪛 LanguageTool

[grammar] ~33-~33: Ensure spelling is correct
Context: ...eBackupTracker.yaml ``` 6. Take a full andn incremental backup Full: the first bac...

(QB_NEW_EN_ORTHOGRAPHY_ERROR_IDS_1)

🪛 markdownlint-cli2 (0.18.1)

36-36: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

🤖 Prompt for AI Agents 
In
`@tests/e2e/sample-applications/virtual-machines/cirros-test/3-vms/cirros-test-with-CNV-CBT/README.md`
around lines 33 - 39, Fix the typos in the backup section of README.md: change
"andn" to "and" in the sentence "Take a full andn incremental backup", correct
"Incremetnal" to "Incremental", and consider fixing "any new backup using the
same tracker will be incremental" to a clearer phrasing like "Any subsequent
backup using the same tracker will be incremental"; leave the oc create command
and filename virtualMachineBackupFull.yaml unchanged.

```
oc create -f virtualMachineBackupInc1.yaml
```

See my results in RESULTS


9 changes: 9 additions & 0 deletions ...le-applications/virtual-machines/cirros-test/3-vms/cirros-test-with-CNV-CBT/RESULTS/NOTES
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# Notes

After downloading the qcow2 files to my laptop.. check the size of files

```
-rw-r--r--. 1 whayutin whayutin 896K Jan 14 09:28 vmbackup-cirros-test-cont-1-inc-1-volume0.qcow2
-rw-r--r--. 1 whayutin whayutin 151M Jan 14 09:29 vmbackup-cirros-test-cont-1-volume0.qcow2
```

37 changes: 37 additions & 0 deletions ...virtual-machines/cirros-test/3-vms/cirros-test-with-CNV-CBT/RESULTS/vmbackup_results_full
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oc -n cirros-test-cont get virtualmachineBackup vmbackup-cirros-test-cont-1 -o yaml
apiVersion: backup.kubevirt.io/v1alpha1
kind: VirtualMachineBackup
metadata:
creationTimestamp: "2026-01-14T15:40:55Z"
finalizers:
- backup.kubevirt.io/vmbackup-protection
generation: 1
name: vmbackup-cirros-test-cont-1
namespace: cirros-test-cont
resourceVersion: "392611"
uid: 649409e7-84e7-47af-a12f-6cd6356e6fd7
spec:
pvcName: pushbackup-pv
source:
apiGroup: backup.kubevirt.io
kind: VirtualMachineBackupTracker
name: vmbackuptracker-cirros-test-cont-1
status:
checkpointName: vmbackup-cirros-test-cont-1-2026-01-14_15-40-55
conditions:
- lastProbeTime: null
lastTransitionTime: "2026-01-14T15:41:04Z"
reason: 'Completed VirtualMachineBackup, warning: Failed freezing guest filesystem:
virError(Code=86, Domain=10, Message=''Guest agent is not responding: QEMU guest
agent is not connected'')'
status: "False"
type: Progressing
- lastProbeTime: null
lastTransitionTime: "2026-01-14T15:41:04Z"
reason: 'Completed VirtualMachineBackup, warning: Failed freezing guest filesystem:
virError(Code=86, Domain=10, Message=''Guest agent is not responding: QEMU guest
agent is not connected'')'
status: "True"
type: Done
type: Full

36 changes: 36 additions & 0 deletions ...virtual-machines/cirros-test/3-vms/cirros-test-with-CNV-CBT/RESULTS/vmbackup_results_inc1
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oc -n cirros-test-cont get virtualmachineBackup vmbackup-cirros-test-cont-1-inc-1 -o yaml
apiVersion: backup.kubevirt.io/v1alpha1
kind: VirtualMachineBackup
metadata:
creationTimestamp: "2026-01-14T15:45:26Z"
finalizers:
- backup.kubevirt.io/vmbackup-protection
generation: 1
name: vmbackup-cirros-test-cont-1-inc-1
namespace: cirros-test-cont
resourceVersion: "396946"
uid: e5415790-5fad-4077-8d5a-8ea7003abfec
spec:
pvcName: pushbackup-pv
source:
apiGroup: backup.kubevirt.io
kind: VirtualMachineBackupTracker
name: vmbackuptracker-cirros-test-cont-1
status:
checkpointName: vmbackup-cirros-test-cont-1-inc-1-2026-01-14_15-45-26
conditions:
- lastProbeTime: null
lastTransitionTime: "2026-01-14T15:45:30Z"
reason: 'Completed VirtualMachineBackup, warning: Failed freezing guest filesystem:
virError(Code=86, Domain=10, Message=''Guest agent is not responding: QEMU guest
agent is not connected'')'
status: "False"
type: Progressing
- lastProbeTime: null
lastTransitionTime: "2026-01-14T15:45:30Z"
reason: 'Completed VirtualMachineBackup, warning: Failed freezing guest filesystem:
virError(Code=86, Domain=10, Message=''Guest agent is not responding: QEMU guest
agent is not connected'')'
status: "True"
type: Done
type: Incremental
18 changes: 18 additions & 0 deletions ...virtual-machines/cirros-test/3-vms/cirros-test-with-CNV-CBT/RESULTS/vmbackup_tracker.yaml
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apiVersion: backup.kubevirt.io/v1alpha1
kind: VirtualMachineBackupTracker
metadata:
creationTimestamp: "2026-01-14T15:37:52Z"
generation: 1
name: vmbackuptracker-cirros-test-cont-1
namespace: cirros-test-cont
resourceVersion: "396932"
uid: 41db29e7-412a-40c5-9a37-c044594febf2
spec:
source:
apiGroup: kubevirt.io
kind: VirtualMachine
name: cirros-test-cont-1
status:
latestCheckpoint:
creationTime: "2026-01-14T15:45:30Z"
name: vmbackup-cirros-test-cont-1-inc-1-2026-01-14_15-45-26
59 changes: 59 additions & 0 deletions ...plications/virtual-machines/cirros-test/3-vms/cirros-test-with-CNV-CBT/cirros-test-1.yaml
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apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
annotations:
generation: 1
labels:
app: cirros-test-cont-1
changedBlockTracking: "true"
name: cirros-test-cont-1
namespace: cirros-test-cont
spec:
dataVolumeTemplates:
- metadata:
annotations:
cdi.kubevirt.io/storage.deleteAfterCompletion: "false"
creationTimestamp: null
name: cirros-test-cont-1-dv
spec:
pvc:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 150Mi
volumeMode: Block
source:
registry:
pullMethod: node
url: docker://quay.io/kubevirt/cirros-container-disk-demo
running: true
template:
metadata:
creationTimestamp: null
name: cirros-test-cont-1
spec:
architecture: amd64
domain:
devices:
disks:
- disk:
bus: virtio
name: volume0
interfaces:
- masquerade: {}
name: default
rng: {}
machine:
type: q35
resources:
requests:
memory: 256M
networks:
- name: default
pod: {}
terminationGracePeriodSeconds: 0
volumes:
- dataVolume:
name: cirros-test-cont-1-dv
name: volume0
79 changes: 79 additions & 0 deletions ...plications/virtual-machines/cirros-test/3-vms/cirros-test-with-CNV-CBT/cirros-test-2.yaml
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apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
annotations:
generation: 1
labels:
app: cirros-test-cont-2
changedBlockTracking: "true"
name: cirros-test-cont-2
namespace: cirros-test-cont
spec:
dataVolumeTemplates:
- metadata:
annotations:
cdi.kubevirt.io/storage.deleteAfterCompletion: "false"
creationTimestamp: null
name: cirros-test-cont-2-dv
spec:
pvc:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 150Mi
volumeMode: Block
source:
registry:
pullMethod: node
url: docker://quay.io/kubevirt/cirros-container-disk-demo
- metadata:
annotations:
cdi.kubevirt.io/storage.deleteAfterCompletion: "false"
name: cirros-test-cont-2-home-dv
spec:
pvc:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 150Mi
volumeMode: Block
source:
blank: {}
running: true
template:
metadata:
creationTimestamp: null
name: cirros-test-cont-2
spec:
architecture: amd64
domain:
devices:
disks:
- disk:
bus: virtio
name: volume0
- disk:
bus: virtio
name: volume1
interfaces:
- masquerade: {}
name: default
rng: {}
machine:
type: q35
resources:
requests:
memory: 256M
networks:
- name: default
pod: {}
terminationGracePeriodSeconds: 0
volumes:
- dataVolume:
name: cirros-test-cont-2-dv
name: volume0
- dataVolume:
name: cirros-test-cont-2-home-dv
name: volume1
59 changes: 59 additions & 0 deletions ...plications/virtual-machines/cirros-test/3-vms/cirros-test-with-CNV-CBT/cirros-test-3.yaml
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apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
annotations:
generation: 1
labels:
app: cirros-test-cont-3
changedBlockTracking: "true"
name: cirros-test-cont-3
namespace: cirros-test-cont
spec:
dataVolumeTemplates:
- metadata:
annotations:
cdi.kubevirt.io/storage.deleteAfterCompletion: "false"
creationTimestamp: null
name: cirros-test-cont-3-dv
spec:
pvc:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 150Mi
volumeMode: Block
source:
registry:
pullMethod: node
url: docker://quay.io/kubevirt/cirros-container-disk-demo
running: true
template:
metadata:
creationTimestamp: null
name: cirros-test-cont-3
spec:
architecture: amd64
domain:
devices:
disks:
- disk:
bus: virtio
name: volume0
interfaces:
- masquerade: {}
name: default
rng: {}
machine:
type: q35
resources:
requests:
memory: 256M
networks:
- name: default
pod: {}
terminationGracePeriodSeconds: 0
volumes:
- dataVolume:
name: cirros-test-cont-3-dv
name: volume0
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