根据业务需要，需要使用centos环境，但是安装的docker desktop没有任务镜像可用
登录docker hub去查询需要的镜像文件
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搜索centos
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点击Tags
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先选择复制对应的拉去命令“docker pull centos:latest”
那么问题来了，我直接执行命令，拉取的到底是什么架构的镜像，这里可以尝试拉取一次
win + r --> cmd
docker pull centos:latest
返回
latest: Pulling from library/centos
a1d0c7532777: Pull complete
Digest: sha256:a27fd8080b517143cbbbab9dfb7c8571c40d67d534bbdee55bd6c473f432b177
Status: Downloaded newer image for centos:latest
docker.io/library/centos:latest
看起来只会拉去第一个架构的镜像
如果我们需要拉取非第一个镜像那该怎么操作？
这里我们选择arm64/v8的镜像
找到对应的DIGEST:sha256:65a4aad1156d8a0679537cb78519a17eb7142e05a968b26a5361153006224fdc
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拉取的命令就改成
docker pull centos:latest@sha256:65a4aad1156d8a0679537cb78519a17eb7142e05a968b26a5361153006224fdc
返回
docker.io/library/centos@sha256:65a4aad1156d8a0679537cb78519a17eb7142e05a968b26a5361153006224fdc: Pulling from library/centos
52f9ef134af7: Pull complete
Digest: sha256:65a4aad1156d8a0679537cb78519a17eb7142e05a968b26a5361153006224fdc
Status: Downloaded newer image for centos@sha256:65a4aad1156d8a0679537cb78519a17eb7142e05a968b26a5361153006224fdc
docker.io/library/centos:latest@sha256:65a4aad1156d8a0679537cb78519a17eb7142e05a968b26a5361153006224fdc
拉取完成
确认镜像是否存在
docker images
返回
REPOSITORY TAG IMAGE ID CREATED SIZE
centos latest 5d0da3dc9764 19 months ago 231MB
centos <none> e6a0117ec169 19 months ago 272MB
拉取完成
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