Setting up aarch64 platform within docker container on x86 architecture

Docker Desktop for Mac ships with hypervisors for the host OS. The hypervisor is responsible for running a lightweight Linux kernel (LinuxKit), which is included as part of Docker Desktop. This lightweight container OS comes packaged with the QEMU emulator, and comes pre-configured with binfmt_misc to run binaries of any supported architecture. Binfmt_misc is a kernel subsystem which allows to set the magic numbers of a binary file to specific actions for their execution.

arm64 docker on x86

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docker run --rm -t arm64v8/ubuntu uname -m
docker container ls
docker exec -it <container_id> /bin/bash

When we run docker image, docker cli pull the img than we execute it in bash terminal of the container.

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uname -a
Linux dfe4f9696511 4.19.121-linuxkit SMP Tue Dec 1 17:50:32 UTC 2020 aarch64 GNU/Linux

We can see linuxkit as the running operating sysyem of the container. Now that we create the enviroment for little kernel, we can install cross compiler(gcc) and a text editor.

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apt update
apt install gcc-aarch64-linux-gnu
apt install vim