[Azure Iot Edge]How to build arm64v8 docker image based on Ubuntu 18.04 amd64 OS by VS Code?

Question

How to build arm64v8 docker image based on Ubuntu 18.04 amd64 OS by VS Code?

I try to build it by VS Code, but it can not excute RUN command in Dockerfile:

Step 2/11 : RUN mvn org.apache.maven.plugins:maven-dependency-plugin:3.1.1:get -Dartifact=com.microsoft.azure.sdk.iot:iot-device-client:1.17.5 -DrepoUrl=https://repo.maven.apache.org/maven2/
 ---> [Warning] The requested image's platform (linux/arm64) does not match the detected host platform (linux/amd64) and no specific platform was requested
 ---> Running in dbb1381f9c56
standard_init_linux.go:219: exec user process caused: exec format error

Thanks.

Answer 1

I find a solution for this, we can use qemu-user-static to build arm64 docker image based on Ubuntu 18.04 Intel processor .

Modify the Dockerfile as follow:

FROM multiarch/qemu-user-static:x86_64-aarch64 as qemu #Add this line
FROM arm64v8/maven:3.5-jdk-8-slim AS build-env

COPY --from=qemu /usr/bin/qemu-aarch64-static /usr/bin #Add this line

RUN mvn org.apache.maven.plugins:maven-dependency-plugin:3.1.1:get -Dartifact=com.microsoft.azure.sdk.iot:iot-device-client:1.17.5 -DrepoUrl=https://repo.maven.apache.org/maven2/

WORKDIR /app
COPY . /app
RUN mvn install -Dmaven.test.skip=true
...

Answer 2

Hello @罗宇恒 罗宇恒 ,

I guess you try to build this image in VS Code on a Windows OS with an Intel/AMD processor.

VS Code is available for Linux too!

Have you tried to build it on an actual Arm64 device like the NVidia Jetson Nano?