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使用 docker buildx 多平台构建的时候，遇到了一个问题，就是我的 ENV 命令被忽略了？
# syntax=docker/dockerfile:1
# x86 架构
FROM ubuntu:focal AS base_focal
RUN if [ "$TARGETPLATFORM" = "linux/amd64" ]; then \
. /etc/os-release && cat << EOF > /etc/apt/sources.list \
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse \
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse \
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse \
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse \
EOF \
; fi
RUN if [ "$TARGETPLATFORM" = "linux/arm64" ]; then \
. /etc/os-release && cat << EOF > /etc/apt/sources.list \
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ focal main restricted universe multiverse \
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ focal-updates main restricted universe multiverse \
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ focal-backports main restricted universe multiverse \
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ focal-security main restricted universe multiverse \
EOF \
; fi
RUN apt-get update
RUN apt-get install -y vim
RUN apt-get install -y openjdk-8-jdk
RUN apt-get install -y wget
WORKDIR /root
RUN wget -P /root https://mirrors.tuna.tsinghua.edu.cn/apache/hbase/2.4.17/hbase-2.4.17-bin.tar.gz
RUN tar xvf /root/hbase-2.4.17-bin.tar.gz
# RUN echo "export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-arm64" | tee -a /etc/profile >/dev/null
# RUN if [ "$TARGETPLATFORM" = "linux/arm64" ]; then \
# export JAVA_HOME="/usr/lib/jvm/java-8-openjdk-arm64"; \
# else \
# export JAVA_HOME="/usr/lib/jvm/java-8-openjdk-amd64"; \
# fi && \
# echo "JAVA_HOME=$JAVA_HOME" >> /etc/environment
# ENV JAVA_HOME=$JAVA_HOME
COPY entrypoint.sh /root/
ENV JAVA_HOME2="haha"
CMD ["/root/entrypoint.sh"]我在后面设置了一个 ENV JAVA_HOME2="haha"
输入命令
docker buildx build --platform linux/amd64,linux/arm64 -t ponponon/hbase:2.4.17 .输出
╰─➤ docker buildx build --platform linux/amd64,linux/arm64 -t ponponon/hbase:2.4.17 .
[+] Building 3.7s (33/33) FINISHED docker-container:mybuilder
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 1.97kB 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> resolve image config for docker.io/docker/dockerfile:1 1.6s
=> [auth] docker/dockerfile:pull token for registry-1.docker.io 0.0s
=> CACHED docker-image://docker.io/docker/dockerfile:1@sha256:39b85bbfa7536a5feceb7372a0817649ecb2724562a38360f4d6a7782a409b14 0.0s
=> => resolve docker.io/docker/dockerfile:1@sha256:39b85bbfa7536a5feceb7372a0817649ecb2724562a38360f4d6a7782a409b14 0.0s
=> [linux/arm64 internal] load metadata for docker.io/library/ubuntu:focal 0.5s
=> [linux/amd64 internal] load metadata for docker.io/library/ubuntu:focal 0.8s
=> [auth] library/ubuntu:pull token for registry-1.docker.io 0.0s
=> [linux/amd64 1/12] FROM docker.io/library/ubuntu:focal@sha256:c9820a44b950956a790c354700c1166a7ec648bc0d215fa438d3a339812f1d01 0.0s
=> => resolve docker.io/library/ubuntu:focal@sha256:c9820a44b950956a790c354700c1166a7ec648bc0d215fa438d3a339812f1d01 0.0s
=> [internal] load build context 0.0s
=> => transferring context: 35B 0.0s
=> [linux/arm64 1/12] FROM docker.io/library/ubuntu:focal@sha256:c9820a44b950956a790c354700c1166a7ec648bc0d215fa438d3a339812f1d01 0.0s
=> => resolve docker.io/library/ubuntu:focal@sha256:c9820a44b950956a790c354700c1166a7ec648bc0d215fa438d3a339812f1d01 0.0s
=> CACHED [linux/amd64 2/12] RUN if [ "$TARGETPLATFORM" = "linux/amd64" ]; then . /etc/os-release && cat << EOF > /etc/apt/sources.list deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse deb http://mirrors. 0.0s
=> CACHED [linux/amd64 3/12] RUN if [ "$TARGETPLATFORM" = "linux/arm64" ]; then . /etc/os-release && cat << EOF > /etc/apt/sources.list deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ focal main restricted universe multiverse deb http://mi 0.0s
=> CACHED [linux/amd64 4/12] RUN apt-get update 0.0s
=> CACHED [linux/amd64 5/12] RUN apt-get install -y vim 0.0s
=> CACHED [linux/amd64 6/12] RUN apt-get install -y openjdk-8-jdk 0.0s
=> CACHED [linux/amd64 7/12] RUN apt-get install -y wget 0.0s
=> CACHED [linux/amd64 8/12] WORKDIR /root 0.0s
=> CACHED [linux/amd64 9/12] RUN wget -P /root https://mirrors.tuna.tsinghua.edu.cn/apache/hbase/2.4.17/hbase-2.4.17-bin.tar.gz 0.0s
=> CACHED [linux/amd64 10/12] RUN tar xvf /root/hbase-2.4.17-bin.tar.gz 0.0s
=> CACHED [linux/amd64 11/12] RUN echo "export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-arm64" | tee -a /etc/profile >/dev/null 0.0s
=> CACHED [linux/arm64 2/12] RUN if [ "$TARGETPLATFORM" = "linux/amd64" ]; then . /etc/os-release && cat << EOF > /etc/apt/sources.list deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse deb http://mirrors. 0.0s
=> CACHED [linux/arm64 3/12] RUN if [ "$TARGETPLATFORM" = "linux/arm64" ]; then . /etc/os-release && cat << EOF > /etc/apt/sources.list deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ focal main restricted universe multiverse deb http://mi 0.0s
=> CACHED [linux/arm64 4/12] RUN apt-get update 0.0s
=> CACHED [linux/arm64 5/12] RUN apt-get install -y vim 0.0s
=> CACHED [linux/arm64 6/12] RUN apt-get install -y openjdk-8-jdk 0.0s
=> CACHED [linux/arm64 7/12] RUN apt-get install -y wget 0.0s
=> CACHED [linux/arm64 8/12] WORKDIR /root 0.0s
=> CACHED [linux/arm64 9/12] RUN wget -P /root https://mirrors.tuna.tsinghua.edu.cn/apache/hbase/2.4.17/hbase-2.4.17-bin.tar.gz 0.0s
=> CACHED [linux/arm64 10/12] RUN tar xvf /root/hbase-2.4.17-bin.tar.gz 0.0s
=> CACHED [linux/arm64 11/12] RUN echo "export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-arm64" | tee -a /etc/profile >/dev/null 0.0s
=> [linux/amd64 12/12] COPY entrypoint.sh /root/ 0.0s
=> [linux/arm64 12/12] COPY entrypoint.sh /root/ 看不到有 ENV 的被执行了
查看镜像的信息
docker image inspect ponponon/hbase:2.4.17 确实没有 JAVA_HOME2
╭─pon@admini ~/opt/docker-compose-public/hbase-focal docker image inspect ponponon/hbase:2.4.17 130 ↵
[
{
"Id": "sha256:e97a9027dfd6bbf70ad6a5b0b73dba25f540fc8569e2a8cf2a3e4cfbcf721473",
"RepoTags": [
"ponponon/hbase-x86-focal:latest",
"ponponon/hbase:2.4.17"
],
"RepoDigests": [
"ponponon/hbase@sha256:0c66a2af5ea9ea0c2413657e4fb2cd9115039024a0ffe80508a58890af618579"
],
"Parent": "",
"Comment": "buildkit.dockerfile.v0",
"Created": "2023-07-18T03:16:00.174219334Z",
"Container": "",
"ContainerConfig": {
"Hostname": "",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": null,
"Cmd": null,
"Image": "",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": null,
"Labels": null
},
"DockerVersion": "",
"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": [
"bash"
],
"Image": "",
"Volumes": null,
"WorkingDir": "/root",
"Entrypoint": null,
"OnBuild": null,
"Labels": null
},
"Architecture": "amd64",
"Os": "linux",
"Size": 1298017597,
"VirtualSize": 1298017597,
"GraphDriver": {
"Data": {
"LowerDir": "/var/lib/docker/overlay2/p6scpswh8i0nueawa10qifmi6/diff:/var/lib/docker/overlay2/i5qd96mj8g7ktq429qtx6ouni/diff:/var/lib/docker/overlay2/nzjsz04yctk37sp1j1q5xrl7k/diff:/var/lib/docker/overlay2/7fpbypao40nnmmyekywouarkf/diff:/var/lib/docker/overlay2/tknfyh2le3lh196lw9b0c9pa0/diff:/var/lib/docker/overlay2/yi2684mu1kfro7mqejgk2te80/diff:/var/lib/docker/overlay2/ib49q6zhd2rxnoqxn9sqjckil/diff:/var/lib/docker/overlay2/llv1kxk8pqpx41qarot5q2s3w/diff:/var/lib/docker/overlay2/qow3hd2q1srvjosa89mzx8y02/diff:/var/lib/docker/overlay2/e2a3710f4d5a0c6b7fe989d38368df9984e581afa8032728e3f2bb4dd70ca363/diff",
"MergedDir": "/var/lib/docker/overlay2/jdgfcxhc763s6uph8fxpankcn/merged",
"UpperDir": "/var/lib/docker/overlay2/jdgfcxhc763s6uph8fxpankcn/diff",
"WorkDir": "/var/lib/docker/overlay2/jdgfcxhc763s6uph8fxpankcn/work"
},
"Name": "overlay2"
},
"RootFS": {
"Type": "layers",
"Layers": [
"sha256:9f54eef412758095c8079ac465d494a2872e02e90bf1fb5f12a1641c0d1bb78b",
"sha256:14d6affed4adc0ef5f5bf13088d30c8bc2ad380b4a3ecfcc99317fef0c44b318",
"sha256:c294749127ef4fa7a907998b83a39fa118c9c8ae2b182fdba08268956b18c665",
"sha256:e144ebbfe1198309c450f06a75523cc48f27313982b2b0a5c5e1d827fdc4ad8f",
"sha256:b071800f76fa7f5c42c64f4a1367eda78859d1a8e3299d75afd0e025fb20f801",
"sha256:1fb8d5fc27059aa0ba8150971902e2478c4a70153cc40c85e65f50271def8473",
"sha256:5f70bf18a086007016e948b04aed3b82103a36bea41755b6cddfaf10ace3c6ef",
"sha256:d82aed3adae27707e39f3ce3a4fb923cfdb3e81b13df0ccd3d24fc7ccd5b61a7",
"sha256:b21157a8f1f435cac7a2ba1e93ca3faa63221cc41ba587b4ad830dc99f7428bc",
"sha256:5303d123946a39704644497c7752882fae4abe7055f295c1c07b1affb12c135b",
"sha256:5cbe117ca7a7c9b431dfe15dad6815e56a9d65f7525a9209e6f7fe8af114db3d"
]
},
"Metadata": {
"LastTagTime": "2023-07-18T05:32:14.609481323Z"
}
}
]
我发现不仅仅是 ENV 没有被执行，连 CMD 都没有执行
CMD 还是默认的 bash
我大概知道了，我用的
docker buildx build --platform linux/amd64,linux/arm64 -t ponponon/hbase:2.4.17 .命令有问题，这个命令是不会把镜像保存到本地的也就是说，docker image ls 看到的镜像，是很久以前 docker build 产生的，而不是现在 docker buildx build 产生的
那么，怎么才能让 docker buildx build 把镜像保存到本地呢？可以用 --output 参数（具体参考：https://docs.docker.com/engine/reference/commandline/buildx_b...）
但是这个参数设计的太脑残了，我换着法子跑了几遍，还是不行
所以我就放弃了，直接 push 到 docker hub 吧
把命令改成下面的样子：
这样镜像打包好后，就会自己 push 到 docker hub 了
然后我去 docker hub 看了一下，你猜怎么着？
虽然 docker buildx 输出的 log 里面没有处理 ENV 和 CMD，但是从 docker hub 是能看到有 ENV 和 CMD 的
https://hub.docker.com/layers/ponponon/hbase/2.4.17/images/sh...
无力吐槽