拉docker镜像用于不同的体系结构 [英] Pull docker image for different architecture

问题描述

我有一个空气隔离的系统，正在运行一些Docker容器.我正在尝试获取一些图像，但是系统与我正在运行的体系结构不同.对于一些图像(如GCC)，我只能说 docker pull repo/gcc ，效果很好，但是由于某些原因，当我尝试执行 docker pull repo/python 我得到:

I have an air gapped system that I'm running some docker containers on. I'm trying to get some images on it however the system is a different architecture than what I'm running. For a few images (like GCC) I was able to just say docker pull repo/gcc and that worked fine, however for some reason when I try to do docker pull repo/python I get:

Using default tag: latest
latest: Pulling from repo/python
no matching manifest for linux/amd64 in the manifest list entries

是否可以在请求请求中指定体系结构?

Is there a way to specify the architecture in my pull request?

推荐答案

要回答标题中的问题:您可以按摘要提取图像.

To answer question from the title: you can pull image by digest.

示例:列出所有受支持的体系结构(清单):

Example: list all supported architectures (manifest):

$ docker manifest inspect ckulka/multi-arch-example
{
   "schemaVersion": 2,
   "mediaType": "application/vnd.docker.distribution.manifest.list.v2+json",
   "manifests": [
      {
         "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
         "size": 2200,
         "digest": "sha256:6eaeab9bf8270ce32fc974c36a15d0bac4fb6f6cd11a0736137c4248091b3646",
         "platform": {
            "architecture": "amd64",
            "os": "linux"
         }
      },
      {
         "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
         "size": 2413,
         "digest": "sha256:f02e0fd2918a894ecd49d67b802c22082dc3c6424f6566e1753a83ba833b0993",
         "platform": {
            "architecture": "arm",
            "os": "linux",
            "variant": "v5"
         }
      },
...

然后按摘要操作，例如 arm 拱(在 linux 机器上拉):

And then pull by digest, e.g. arm arch (pulled on linux machine):

$  docker pull ckulka/multi-arch-example@sha256:f02e0fd2918a894ecd49d67b802c22082dc3c6424f6566e1753a83ba833b0993

但是您不能运行所有体系结构，因此当您为其他体系结构提取映像时，它可能会毫无用处.

But you can't run all architectures, so it can be useless when you pull image for different architecture.

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