我有一个在 amd64 上运行的 Dockerfile,但想在 arm64 上运行。由于 go build 工具采用 GOARCH=arm64 作为参数,因此我不需要任何其他交叉编译工具来制作二进制文件。
# Run the build
FROM mojlighetsministeriet/go-polymer-faster-build
ENV WORKDIR /go/src/github.com/mojlighetsministeriet/email
COPY . $WORKDIR
WORKDIR $WORKDIR
RUN go get -t -v ./...
RUN CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build
# Create the final docker image
FROM scratch
COPY --from=0 /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
COPY --from=0 /go/src/github.com/mojlighetsministeriet/email/email /
ENTRYPOINT ["/email"]
问题是生成的图像被标记为错误的架构 amd64 而不是 arm64。如何将参数传递给 docker build 以便将 Architecture 设置为 arm64?
$ docker image inspect mojlighetsministeriet/email-arm64
[
{
"Id": "sha256:33bcd7da8631c7a0829d61cc53479a26ab7f31fab1cb039105de415ddc6178f3",
"RepoTags": [
"mojlighetsministeriet/email-arm64:latest"
],
"RepoDigests": [
"mojlighetsministeriet/email-arm64@sha256:ab3f05d5597c3a304953b5c14f795179aa75bdfd458af3dc3cfb8b8d8eb87bc3"
],
"Parent": "sha256:e5888262d93ea0946b5fd8146cf1c19ec3a7bac4d36eb51848ef0aefa75cf8e7",
"Comment": "",
"Created": "2017-12-05T18:36:36.273648787Z",
"Container": "7a226edb3b52aaeeefec9e0fb4dd1da50d84992fb6cc374aeda9d82eec1bb2c8",
"ContainerConfig": {
"Hostname": "7a226edb3b52",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd": [
"/bin/sh",
"-c",
"#(nop) ",
"ENTRYPOINT [\"/email\"]"
],
"Image": "sha256:e5888262d93ea0946b5fd8146cf1c19ec3a7bac4d36eb51848ef0aefa75cf8e7",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": [
"/email"
],
"OnBuild": null,
"Labels": {}
},
"DockerVersion": "17.10.0-ce",
"Author": "",
"Config": {
"Hostname": "",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd": null,
"Image": "sha256:e5888262d93ea0946b5fd8146cf1c19ec3a7bac4d36eb51848ef0aefa75cf8e7",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": [
"/email"
],
"OnBuild": null,
"Labels": null
},
"Architecture": "amd64",
"Os": "linux",
"Size": 7861466,
"VirtualSize": 7861466,
"GraphDriver": {
"Data": {
"LowerDir": "/var/lib/docker/overlay2/03cb0162bf922636e4e0ec90123b81565a447c6cd511741103551d2f0e7f09f9/diff",
"MergedDir": "/var/lib/docker/overlay2/091f74815a0caf457df7e57ade43b41c4dd8551388beca44815a7038501742ee/merged",
"UpperDir": "/var/lib/docker/overlay2/091f74815a0caf457df7e57ade43b41c4dd8551388beca44815a7038501742ee/diff",
"WorkDir": "/var/lib/docker/overlay2/091f74815a0caf457df7e57ade43b41c4dd8551388beca44815a7038501742ee/work"
},
"Name": "overlay2"
},
"RootFS": {
"Type": "layers",
"Layers": [
"sha256:66f615d03920919b0fa8bc9fed45515bb95636be1837fdd10a82b2c183e2ad5b",
"sha256:bd6a01b885eb6e3eec38a3fe3a2899646509633730b210cf6987456fd40b8a1c"
]
},
"Metadata": {
"LastTagTime": "2017-12-14T10:24:10.796813522+01:00"
}
}
]
对于构建单个 docker 映像:使用命令行设置环境变量或修改 .bashrc 或 .zshenv 文件。 (于 03/2019 在 v19.03.0 中引入)
export DOCKER_DEFAULT_PLATFORM=linux/arm64
或者,在 Dockerfile 中,在 FROM 命令中包含以下标志(对于多阶段 Dockerfile 构建,仅第一阶段需要该标志):
FROM --platform=linux/arm64 python:3.7-alpine
要将镜像构建为 docker-compose 构建的一部分,请为每个服务包含平台:linux/arm64。例如:
services:
frontend:
platform: linux/arm64
build: frontend
ports:
- 80:80
depends_on:
- backend
backend:
platform: linux/arm64
build: backend
反之亦然,例如,如果您有 Apple M1 芯片并希望将映像部署到基于 Linux 或 Windows 的 AMD64 环境。只需将“linux/arm64”替换为“linux/amd64”
https://docs.docker.com/desktop/multi-arch/
# Shows builders installed
docker buildx ls
# Use builder that supports platform
docker buildx use default
docker buildx build --platform linux/arm64 -t <image_name>:<image_tag> --push .
我能够解决问题,虽然不完全按照我想要的方式,但已经足够接近了。
拥有一台带docker的amd64 Linux机器
设置 qemu 用户静态以支持 Arm https://hub.docker.com/r/multiarch/qemu-user-static/
在您的 docker 文件中使用支持arm的基础镜像。例如。 ubuntu
使用类似于以下的命令构建图像:
docker build --platform arm --pull -t your_tag .
此命令将强制 docker 拉取基础映像的arm版本,并将arm架构设置为结果映像。但要小心,如果您使用多个架构的标签,上面的命令会将标签设置为arm版本。因此,要运行本机 amd64 版本,您需要在没有 --platform arg 的情况下再次拉取标签。
我在 qemu-user 的帮助下在 amd64 主机上构建并运行 arm64 映像。但是
docker inspect
这些arm64图像总是显示"Architecture": "amd64"
。我希望如此
可以显示"Architecture": "arm64"
我尝试了
DOCKER_DEFAULT_PLATFORM
和--platform=linux/arm64
,都不起作用。我正在使用 docker 19.03.13.
最后我找到了解决方案——先保存图片,更改其元数据,然后加载 回来了:
set -e
IMAGE_ID=$(docker image inspect --format '{{.ID}}' $1)
IMAGE_ID=${IMAGE_ID#sha256:}
if [ ${#IMAGE_ID} -ne 64 ]; then
echo "Invalid image sha256 id"
exit 1
fi
rm -rf ${IMAGE_ID}
mkdir -p ${IMAGE_ID}
echo "IMAGE ${IMAGE_ID}"
echo "> save..."
docker save ${IMAGE_ID} | tar -xC ${IMAGE_ID}
echo "> change arch..."
sed -i 's/"architecture":"amd64"/"architecture":"arm64"/' ${IMAGE_ID}/${IMAGE_ID}.json
echo "> reload..."
tar -cC ${IMAGE_ID} . | docker load
echo "> clean..."
rm -rf ${IMAGE_ID}
echo "Note: you need to tag it manually"
将其保存到changeArch.sh,然后运行
sh changeArch.sh <sha_id>
或sh changeArch.sh <image:tag>
。
以前的答案都不适合我。我正在为每个架构构建一个静态 Go 二进制文件,并将其复制到构建的完全空的容器中
FROM scratch
。我需要采取以下方法,使用 docker manifest annotate
命令显式设置构建容器的架构:
docker build -f myproject.Dockerfile --pull -t registry.gitlab.com/myuser/myproject/myproject:manifest-arm64 --build-arg ARCH=arm64 .
docker build -f myproject.Dockerfile --pull -t registry.gitlab.com/myuser/myproject/myproject:manifest-amd64 --build-arg ARCH=amd64 .
docker push registry.gitlab.com/myuser/myproject/myproject:manifest-arm64
docker push registry.gitlab.com/myuser/myproject/myproject:manifest-amd64
docker manifest create registry.gitlab.com/myuser/myproject/myproject:manifest-latest \
--amend registry.gitlab.com/myuser/myproject/myproject:manifest-arm64 \
--amend registry.gitlab.com/myuser/myproject/myproject:manifest-amd64
docker manifest annotate --arch arm64 registry.gitlab.com/myuser/myproject/myproject:manifest-latest registry.gitlab.com/myuser/myproject/myproject:manifest-arm64
docker manifest push registry.gitlab.com/myuser/myproject/myproject:manifest-latest
我已经在 azure 容器应用程序上部署了 docker 映像,该应用程序仅允许
amd64
。以下解决方案对我有用。
docker build -t user/image . --platform="linux/amd64"
以同样的方式,您可以为您更改平台。