构建准备工作

Introduction

Dayu is deployed on a cloud-edge collaborative environment with heterogeneous devices, which requires components in dayu has multi-architecture (like amd64/arm64).

An easy way to build multi-architecture docker images is cross-building. buildx is an official Docker build tool provided by Docker, which helps users quickly and efficiently build Docker images and supports building on multiple platforms. With buildx, users can build images for multiple architectures in a single command without manually operating multiple build commands.

Enable Docker Experimental Mode

Edit /etc/docker/daemon.json and add the following line:

{
  "experimental": true
}

Restart docker to enable the change.

systemctl daemon-reload
systemctl restart docker

Install Docker Buildx

Choose an appropriate buildx version at https://github.com/docker/buildx/releases based on your docker version.

Download docker buildx package (we take version buildx-v0.10.4.darwin-amd64 as an example).

wget https://github.com/docker/buildx/releases/download/v0.10.4/buildx-v0.10.4.darwin-amd64

Rename and move buildx package.

mv buildx-v0.10.4.darwin-amd64 docker-buildx
mv docker-buildx $HOME/.docker/cli-plugins

Add execution permission.

chmod +x ~/.docker/cli-plugins/docker-buildx

Test Buildx

Use the following command to test whether buildx installed successfully.

docker buildx version

If buildx is not installed successfully, use the following command to see the possible error.

docker info