Guide for Making Your Own Docker Images Work on Resin

Introduction

Resin.io offers you the flexibility to deploy your application from a custom Dockerfile which allows you to define your own development environment.

To make an image works on resin, it needs to embed QEMU because we do cross-compiling on our servers to build your images.

Follow each step in this guide and you will find how easy to make an image work on resin

Steps

In this example, we use sdhibit/rpi-raspbian as the target image.

• Rebuild your image with qemu embedded.

FROM sdhibit/rpi-raspbian

COPY qemu-arm-static /usr/bin/

And

docker build -t nghiant2710/sdhibit-rpi-raspbian-qemu .

Replace sdhibit/rpi-raspbian with your image name and nghiant2710/sdhibit-rpi-raspbian-qemu with you new image name then build this Dockerfile, the new image will have QEMU embedded. We highly recommend using the qemu-arm-static in this repo for your image. This is the resin's patched QEMU for your stability your application.

• Push you new image docker push nghiant2710/sdhibit-rpi-raspbian-qemu

Replace nghiant2710/sdhibit-rpi-raspbian-qemu with your new image name and push it to Docker Hub

• Push your application using the newly built image

FROM nghiant2710/sdhibit-rpi-raspbian-qemu

RUN apt-get update && apt-get install -y python

COPY . /

CMD ["python", "/hello.py"]

We've made a simple appication using the newly created image. What will you create?