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Status Future consideration
Created by Guest
Created on Sep 23, 2024

Consistent technique for mirroring images for an air-gapped cluster - OpenShift and CPs

Currently Redhat recommends oc -mirror for replicating images for gapped install. CP4I recommends a different tool and as a result customers have to install/support two different toolset to mirror images for air-gapped install. Would like a consistent approach and CP4I use what OpenShift uses. If other CPs also have similar approach it makes it easier for the customers to perform these tasks and avoid deployment delays.

Idea priority High
  • Guest
    Reply
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    Sep 26, 2024

    I agree that we need to move CP4I in this direction, unfortunately there are (as John mentioned) some complexities with catalog mirroring. Mirroring a whole catalog can increase the amount of mirror data, which is something we've worked hard to reduce in our current toolchain and would need to work out how to do the same using oc mirror instead.

    Consolidating on one process is definitely where we're going, but going to take time.

    1 reply
  • Guest
    Reply
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    Sep 25, 2024

    I think it is critical to have a uniform tool set and process for installing any Cloud Pak using air-gapped installation. There needs to be agreement between IBM and Red Hat and that agreement needs to work reliably for customers.

  • Guest
    Reply
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    Sep 25, 2024

    I have a joint customer that is having the same difficulty -- large IBM and RH shop thats nearly 100% offline. 2 different procedures and tools for one platform (OCP). I am not a huge fan of oc-mirror we ship due to nagging customer issues with the tool (especially around operators) but there should be a unified experience when it comes to caching standard content. We dont ask customers to use 2 different tools for RPMs on linux, so should it be for OCI.

  • Guest
    Reply
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    Sep 25, 2024

    CP4I should follow the Red Hat recommendation and build on it

  • Guest
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    Sep 25, 2024

    This week, I had this same request from two different customers deploying OCP in an air-gapped environment and also consuming IBM CloudPaks. They asked basically the same question: why do we have two entirely different processes to accomplish the same goal ? (which is mirror container images to a private container registry) - wouldn't it be less confusing and more efficient to use the same tool to mirror OCP to also mirror the content from the IBM CloudPaks? After all we are just mirroring container images to a private container registry.

  • Guest
    Reply
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    Sep 25, 2024

    Great idea