Bug 2068905

Description of problem:
virtctl guestfs makes wrong assumption about image name and thus fails to assemble the correct guestfs pod image URL

Version-Release number of selected component (if applicable):
CNV v4.9.4

How reproducible:
100%

Steps to Reproduce:
1. Create DV
2. Attempt to create guestfs pod (`virtctl guestfs simple-dv`)

Actual results:
ErrImagePull

Expected results:
Success

Additional info:
It appears we make a wrong assumption about the image name being "libguestfs-tools" in:
https://github.com/kubevirt/kubevirt/blob/main/pkg/virtctl/guestfs/guestfs.go#L197

This results in an attempt to create a pod from a wrong URL

cnv-qe-jenkins@cnv-qe-infra-01:~/alex$ virtctl guestfs simple-dv
Use image: quay.io/openshift-cnv/libguestfs-tools@sha256:591e6d1e817bbd42b80f24b1ff9863533acc00fa6032c8abcbc38b9bb9e964ae

while the correct URL is

cnv-qe-jenkins@cnv-qe-infra-01:~/alex$ oc get csv -n openshift-cnv -o yaml | grep guestfs
    - image: quay.io/openshift-cnv/container-native-virtualization-libguestfs-tools@sha256:591e6d1e817bbd42b80f24b1ff9863533acc00fa6032c8abcbc38b9bb9e964ae

Manifests:
cnv-qe-jenkins@cnv-qe-infra-01:~/alex$ cat guestfs_dv.yaml 
apiVersion: cdi.kubevirt.io/v1beta1
kind: DataVolume
metadata:
  name: simple-dv
spec:
  source:
      http:
         url: "http://.../Fedora-Cloud-Base-34-1.2.x86_64.qcow2"
  pvc:
    storageClassName: ocs-storagecluster-ceph-rbd
    accessModes:
    - ReadWriteOnce
    resources:
      requests:
        storage: 8Gi

cnv-qe-jenkins@cnv-qe-infra-01:~/alex$ virtctl guestfs simple-dv
Use image: quay.io/openshift-cnv/libguestfs-tools@sha256:591e6d1e817bbd42b80f24b1ff9863533acc00fa6032c8abcbc38b9bb9e964ae 
The PVC has been mounted at /disk 
Waiting for container libguestfs still in pending, reason: ContainerCreating, message:  
Waiting for container libguestfs still in pending, reason: ContainerCreating, message:  
Waiting for container libguestfs still in pending, reason: ImagePullBackOff, message: Back-off pulling image "quay.io/openshift-cnv/libguestfs-tools@sha256:591e6d1e817bbd42b80f24b1ff9863533acc00fa6032c8abcbc38b9bb9e964ae" 
Waiting for container libguestfs still in pending, reason: ImagePullBackOff, message: Back-off pulling image "quay.io/openshift-cnv/libguestfs-tools@sha256:591e6d1e817bbd42b80f24b1ff9863533acc00fa6032c8abcbc38b9bb9e964ae" 
Waiting for container libguestfs still in pending, reason: ImagePullBackOff, message: Back-off pulling image "quay.io/openshift-cnv/libguestfs-tools@sha256:591e6d1e817bbd42b80f24b1ff9863533acc00fa6032c8abcbc38b9bb9e964ae"