cli build

docker build --platform linux/arm64  .

cli run

docker run --platform linux/arm/v8 dbmigration:1.1

all platforms

docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 -t username/demo:latest --push .

add to from

FROM --platform=linux/x86_64 $REGISTRY_HOST/guardian/base-images/node16-builder:1.0.0 as builder

Stop repeating flag when you perform a docker run command:

useful only for macOS Silicon M1,

still working but useless for the other platforms

Add this snipped to your ~/.zshrc and ~/.bashrc

docker() {
  if [ `uname -m` == "arm64" ](%60uname%20-m%60%20==%20%22arm64%22.md#) && [| "$1" == "build" ](%22$1%22%20==%20%22run%22.md#); then
     /usr/local/bin/docker "$1" --platform linux/amd64 "${@:2}"
  else
     /usr/local/bin/docker "$@"
  fi
}

set the environment variable DOCKER_DEFAULT_PLATFORM

export DOCKER_DEFAULT_PLATFORM=linux/amd64

add in your docker-compose.yaml

services:
  service_name:
    environment:
      - DOCKER_DEFAULT_PLATFORM=linux/amd64

add to build as env

DOCKER_DEFAULT_PLATFORM=linux/amd64 docker-compose build

Keep in mind that if you’ve already downloaded the image for a different platform, docker will keep using that image no matter what platform you
specify as your default, you would delete the image
using docker image rm your_img first to fix that.

Alternatively - Adding 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/amd64 python:3.7-alpine

Building images as part of a docker-compose build

include the platform: linux/amd64 for each service

services:
  frontend:
    platform: linux/amd64
    build:    frontend
    ports:
      - 80:80
    depends_on:
      - backend
  backend:
    platform: linux/amd64
    build:    backend

Debian ARM

  FROM        aemdesign/tini:debian-arm

LABEL   os="debian 8 arm" \
        container.description="oracle jdk" \
        version="jdk8" \
        maintainer="devops <devops@aem.design>" \
        imagename="oracle-jdk" \
        test.command=" java -version 2>&1 | grep 'java version' | sed -e 's/.*java version "\(.*\)".*/\1/'" \
        test.command.verify="1.8"


ARG JAVA_VERSION="8"
ARG JAVA_VERSION_TIMESTAMP="2133151"
ARG JAVA_DOWNLOAD_URL="https://www.oracle.com/au/java/technologies/javase-jdk${JAVA_VERSION}-downloads.html"
ARG JDK_DRIVEID="xxx"

ENV JAVA_HOME=/opt/jdk1.8.0_321/

COPY gdrive.sh .

RUN \
    echo "DOWNLOAD JDK DONE" && \
    bash ./gdrive.sh "download" "${JDK_DRIVEID}" "/opt/jdk.tar.gz" && \
    echo "INSTALL JDK" && \
    cd /opt/ && \
    tar -xvzf jdk.tar.gz && \
    export JAVA_HOME=${JAVA_HOME}  && \
    update-alternatives --install /usr/bin/java java ${JAVA_HOME%*/}/bin/java 1 && \
    update-alternatives --install /usr/bin/javac javac ${JAVA_HOME%*/}/bin/javac 1 && \
    update-alternatives --config java && \
    rm -rf /opt/jdk.tar.gz