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  1. OpenShift Bugs
  2. OCPBUGS-54891

[v2] helm repo mirroring is failing with Docker references with both a tag and digest are currently not supported

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      * Previously, when mirroring a Helm chart that included container images with both a tag and digest in the reference, oc-mirror plugin v2 failed with the following error:
      +
      [source,text]
      ----
      Docker references with both a tag and digest are currently not supported.
      ----
      +
      With this update, oc-mirror plugin v2 supports Helm charts that reference images using both tag and digest. The tool mirrors the image using the digest as the source and applies the tag at the destination. (link:https://issues.redhat.com/browse/OCPBUGS-54891[OCPBUGS-54891])
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      * Previously, when mirroring a Helm chart that included container images with both a tag and digest in the reference, oc-mirror plugin v2 failed with the following error: + [source,text] ---- Docker references with both a tag and digest are currently not supported. ---- + With this update, oc-mirror plugin v2 supports Helm charts that reference images using both tag and digest. The tool mirrors the image using the digest as the source and applies the tag at the destination. (link: https://issues.redhat.com/browse/OCPBUGS-54891 [ OCPBUGS-54891 ])
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      Description of problem:

      helm repo mirroring is failing with Docker references with both a tag and digest are currently not supported

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

      4.18

      How reproducible:

       100%

      Steps to Reproduce:

      1- Create below imageset to mirror helm repo

      kind: ImageSetConfiguration
apiVersion: mirror.openshift.io/v2alpha1
mirror:
  helm:
    repositories:
      - name: nginx-helm-charts
        url: https://kubernetes.github.io/ingress-nginx
        charts:
          - name: ingress-nginx
            version: 4.12.1

      2- Try to mirror to disk and observe below error

      # ./oc-mirror --config=./helmimageset.yaml file:///opt/testnginx/ --v2

1 / 1 () [=====================================================================================================================================================================================================] 100 %
 ✗   () controller:v1.12.1@sha256:d2fbc4ec70d8aa2050dd91a91506e998765e86c96f32cffb56c503c9c34eed5b ➡️  cache 
2025/04/11 11:25:01  [INFO]   : === Results ===
2025/04/11 11:25:01  [INFO]   :  ✗  0 / 1 helm images mirrored: Some helm images failed to be mirrored - please check the logs
2025/04/11 11:25:01  [ERROR]  : [Worker] error mirroring image registry.k8s.io/ingress-nginx/controller:v1.12.1@sha256:d2fbc4ec70d8aa2050dd91a91506e998765e86c96f32cffb56c503c9c34eed5b error: invalid source name docker://registry.k8s.io/ingress-nginx/controller:v1.12.1@sha256:d2fbc4ec70d8aa2050dd91a91506e998765e86c96f32cffb56c503c9c34eed5b: Docker references with both a tag and digest are currently not supported
2025/04/11 11:25:01  [INFO]   : 📦 Preparing the tarball archive...
2025/04/11 11:25:01  [INFO]   : mirror time     : 17.856017384s
2025/04/11 11:25:01  [WARN]   : [Worker] some errors occurred during the mirroring.

      3- The same mirroring is completed if i use v1

      Actual results:

      Mirroring image is failing

      Expected results:

      Mirroring should be completed as the same is working with v1

      Additional info:

              skhoury@redhat.com Sherine Khoury
              rhn-support-amuhamme MUHAMMED ASLAM V K
              None
              None
              Nidan Gavali Nidan Gavali
              None
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                Created:
                Updated:
                Resolved: