How to set Architecture for docker build to arm64?

For building single docker images: Set your environment variable using the command line or modifying your .bashrc or .zshenv file. (introduced in v19.03.0 in 03/2019)

export DOCKER_DEFAULT_PLATFORM=linux/arm64

Alternatively, in the Dockerfile, include the following flag in the FROM command (for a multi-stage Dockerfile build, the flag is only needed for the first stage):

FROM --platform=linux/arm64 python:3.7-alpine

For building images as part of a docker-compose build, include the platform: linux/arm64 for each service. For example:

services:  
  frontend:  
    platform: linux/arm64
    build: frontend  
    ports:
      - 80:80  
    depends_on:
      - backend  
  backend:  
    platform: linux/arm64
    build: backend  

This also works the other way around, for instance if you have an Apple M1 Chip and want to deploy images to a Linux or Windows based AMD64 environment. Simply swap ‘linux/arm64’ for ‘linux/amd64’