Running Alpine in a Docker Container

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Some things you might want to know if you're running Alpine in a Docker container.

using mkinitfs

By default mkinitfs will use the running kernel to build the initfs. Since your Docker container is under some other kernel you need to specify this manually.

apk add linux-vanilla

cat /usr/share/kernel/vanilla/kernel.release

mkinitfs 4.19.41-0-vanilla

mkinitfs `cat /usr/share/kernel/vanilla/kernel.release`

See also