Mirror container images into an existing registry
Using a custom air-gapped container registry, or mirror, is necessary with certain user environments and workload requirements. Mirroring allows for the transfer of container images and updates to air-gapped environments where they can be installed on a MicroShift instance.
To create an air-gapped mirror registry for MicroShift containers, you must complete the following steps:
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Get the container image list to be mirrored.
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Configure the mirroring prerequisites, including secure signatures management.
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Download images on a host with internet access.
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Copy the downloaded image directory to an air-gapped site.
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Upload images to a mirror registry in an air-gapped site.
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Configure your MicroShift hosts to use the mirror registry.