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If so, wouldn't there be overhead if, say, I install a Debian image which contains a specific version of a Linux Kernel? Now you have a container with a Kernel, on top of another kernel (the docker host's kernel). Or am I missing something?

Or does the docker image have the kernel stripped out some how?

Will
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mskw
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1 Answers1

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Docker images do not contain kernels, but they could soon. That's why Docker aquired Unikernel not long ago.

Source and further Information: http://techcrunch.com/2016/01/21/docker-acquires-unikernel-systems-as-it-looks-beyond-containers/

Phileas Fogg
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