Question

我正在尝试在x86计算机上基于ARMv7容器运行Docker映像。根据此site，可以通过首先运行此容器来实现。

docker run --rm --privileged hypriot/qemu-register

此命令在Mac OS X和Ubuntu 19虚拟机（带有Windows 10主机）上有效。但是，当我尝试在CentOS 7和AWS A1 instances之一上运行时，收到消息standard_init_linux.go:211: exec user process caused "exec format error"。 CentOS 7的CPU是Intel Core i7-8700K，AWS A1基于Graviton processor。

有人知道我在这里想念什么吗？

关于AWS A1实例的投诉是安装miniconda。我不确定是否有办法说“是”（继续安装），因为应该已经-b标志让miniconda静默安装了。

Step 6/11 : RUN /bin/bash /tmp/miniconda.sh -b -p /opt/miniconda
 ---> Running in ab9b5fef6837
WARNING:
    Your processor does not appear to be an armv7l.  This software
    was sepicically build for the Raspberry Pi 2 running raspbian wheezy
    (or above).
    Are sure you want to continue the installation? [yes|no]
[no] >>> Aborting installation

Answer 1

AWS A1实例确实支持运行Armv7二进制文件。使用可用的适用于A1的Ubuntu 18.04 AMI，在命令行上运行它：

import asyncio
import requests_html
from time import time
from bs4 import BeautifulSoup


async def fetch_content(url, session):
    async with session.get(url, allow_redirects=True) as response:
        data = await respone.read()
        respone.html.render()
        soup = BeautifulSoup(respone.html.html, 'lxml')
        txt = soup.find_all('span', {'class': 'text'})
        print(txt)




async def main():
    url = 'http://quotes.toscrape.com/js/'
    tasks = []
    async with requests_html.AsyncHTMLSession() as session:
        for i in range(10):
            tasks.append(asyncio.create_task(fetch_content(url, session)))
        await asyncio.gather(*tasks)



if __name__ == '__main__':
    t0 = time()
    asyncio.run(main())
    print(time() - t0)

如果成功，则表明AMI和内核已构建为支持在64位平台上运行32位可执行文件。要测试此功能，请使用cat /boot/config-4.15.0-1043-aws | grep "CONFIG_COMPAT=y"进行安装以获取最小的32位构建环境，创建可执行文件并在其上执行apt-get install gcc:armhf libc6:armhf。您应该看到计算机列为ARM，而不是AArch64。执行也应该成功。

使用armv7映像测试docker在A1的Ubuntu 18.04 AMI上也可以立即使用。我通过readelf -h进行了测试，然后使用bash进入了交互模式，并尝试安装Miniconda3。问题似乎与上面链接的Miniconda安装脚本有关。它在第58行上无条件尝试：

docker pull armhf/ubuntu:latest

Docker不会对if [[ `uname -m` != 'armv7l' ]]; then echo -n "WARNING: Your processor does not appear to be an armv7l. This software was sepicically build for the Raspberry Pi 2 running raspbian wheezy (or above). Are sure you want to continue the installation? [yes|no] [no] >>> " read ans if [[ ($ans != "yes") && ($ans != "Yes") && ($ans != "YES") && ($ans != "y") && ($ans != "Y") ]] then echo "Aborting installation" exit 2 fi fi返回的内容进行任何重写，它将在A1实例上看到AArch64并将跳到那里。注释掉此阻止将使您继续使用A1实例。

要使其在x86笔记本电脑上正常工作，您需要将uname -m复制到Docker映像以启用仿真。我不确定，但是我会怀疑qemu-arm-static仍不会返回Miniconda期望的正确机器类型。

在x86桌面上运行由ARMv7基本映像构建的Docker映像时出现问题

1 个答案: