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Create a multi-architecture docker image from a running docker container?

in flag

I have a docker container running on Linux server (x64 architecture). I need to move this container to another Linux server (ARM architecture). This container has a lot of configurations involved in it, so I don't want to build an image from it's Dockerfile. I want to create an multi-architecture image of this container.

Thanks

cn flag
You don't. The correct thing to do is build a Dockerfile, then you have a **repeatable** way to rebuild this container for any architecture. (re: https://serverfault.com/q/1083791/143330)
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