I see that if a release does not contain kubevirt coreos container image and if kubeVirtContainer flag is set to true oc-mirror fails to continue.
    

     [fedora@preserve-fedora-yinzhou test]$ ./oc-mirror version
WARNING: This version information is deprecated and will be replaced with the output from --short. Use --output=yaml|json to get the full version.
Client Version: version.Info{Major:"", Minor:"", GitVersion:"v0.2.0-alpha.1-280-g8a42369", GitCommit:"8a423691", GitTreeState:"clean", BuildDate:"2024-08-03T08:02:06Z", GoVersion:"go1.22.4", Compiler:"gc", Platform:"linux/amd64"}

    

     Always
    

    1. use imageSetConfig.yaml as shown below
    2. Run command oc-mirror -c clid-179.yaml file://clid-179 --v2
    3.
    

    fedora@preserve-fedora-yinzhou test]$ ./oc-mirror -c /tmp/clid-99.yaml file://CLID-412 --v2

2024/08/03 09:24:38  [WARN]   : ⚠️  --v2 flag identified, flow redirected to the oc-mirror v2 version. This is Tech Preview, it is still under development and it is not production ready.
2024/08/03 09:24:38  [INFO]   : 👋 Hello, welcome to oc-mirror
2024/08/03 09:24:38  [INFO]   : ⚙️  setting up the environment for you...
2024/08/03 09:24:38  [INFO]   : 🔀 workflow mode: mirrorToDisk 
2024/08/03 09:24:38  [INFO]   : 🕵️  going to discover the necessary images...
2024/08/03 09:24:38  [INFO]   : 🔍 collecting release images...
2024/08/03 09:24:44  [INFO]   : kubeVirtContainer set to true [ including :  ]
2024/08/03 09:24:44  [ERROR]  : unknown image : reference name is empty
2024/08/03 09:24:44  [INFO]   : 👋 Goodbye, thank you for using oc-mirror
2024/08/03 09:24:44  [ERROR]  : unknown image : reference name is empty 

    

    If kubeVirt coreos container does not exist in a relelase oc-mirror should skip and continue mirroring other operators but should not fail.
    

    [fedora@preserve-fedora-yinzhou test]$ cat /tmp/clid-99.yaml 
apiVersion: mirror.openshift.io/v2alpha1
kind: ImageSetConfiguration
mirror:
  platform:
    channels:
      - name: stable-4.12
        minVersion: 4.12.61
        maxVersion: 4.12.61
    kubeVirtContainer: true
  operators:
  - catalog: oci:///test/ibm-catalog
  - catalog: registry.redhat.io/redhat/redhat-operator-index:v4.15
    packages:
    - name: devworkspace-operator
      minVersion: "0.26.0"
    - name: nfd
      maxVersion: "4.15.0-202402210006"
    - name: cluster-logging
      minVersion: 5.8.3
      maxVersion: 5.8.4
    - name: quay-bridge-operator
      channels:
      - name: stable-3.9
        minVersion: 3.9.5
    - name: quay-operator
      channels:
      - name: stable-3.9
        maxVersion: "3.9.1"
    - name: odf-operator
      channels:
      - name: stable-4.14
        minVersion: "4.14.5-rhodf"
        maxVersion: "4.14.5-rhodf"
  additionalImages:
  - name: registry.redhat.io/ubi8/ubi:latest
  - name: quay.io/openshifttest/hello-openshift@sha256:61b8f5e1a3b5dbd9e2c35fd448dc5106337d7a299873dd3a6f0cd8d4891ecc27
  - name: quay.io/openshifttest/scratch@sha256:b045c6ba28db13704c5cbf51aff3935dbed9a692d508603cc80591d89ab26308