docker - 在Alpine docker容器中运行geckodriver

Question

我正在尝试在Alpine 3.10 docker容器中运行GeckoDriver v0.26.0，特别是python:3.6.6-alpine3.10。

在弄清楚一些事情之后，我碰壁了:

/ # geckodriver --version
Error relocating /usr/bin/geckodriver: __register_atfork: symbol not found
Error relocating /usr/bin/geckodriver: __res_init: symbol not found

我想念什么？

我怎么到这里

首先启动docker容器:

docker run -it python:3.6.9-alpine3.10 /bin/sh

然后尝试安装GeckoDriver

/ # wget https://github.com/mozilla/geckodriver/releases/download/v0.26.0/geckodriver-v0.26.0-linux64.tar.gz
/ # tar -zxf geckodriver-v0.26.0-linux64.tar.gz -C /usr/bin
/ # geckodriver --version
/bin/sh: geckodriver: not found.

真的吗？但我只是将其提取出来...嗯...好提取正确吗？ $PATH是否正确？

/ # ls -lah /usr/bin/geckodriver
-rwxr-xr-x    1 1000     1000        6.7M Oct 12 10:19 /usr/bin/geckodriver
/ # echo $PATH
/usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

是的。好吧，让我们用谷歌搜索。好吧，也许我应该 check the file info。默认情况下，Alpine没有。

/ # apk add file
fetch http://dl-cdn.alpinelinux.org/alpine/v3.10/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.10/community/x86_64/APKINDEX.tar.gz
(1/2) Installing libmagic (5.37-r1)
(2/2) Installing file (5.37-r1)
Executing busybox-1.30.1-r2.trigger
OK: 24 MiB in 36 packages
/ # file /usr/bin/geckodriver
/usr/bin/geckodriver: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.26, BuildID[sha1]=32c4cfc2d9346336dc7c20e99a62df9be344d609, with debug_info, not stripped

answer to that same question说要检查 /lib64/ld-linux-x86-64.so.2:

/ # ls /lib64
ls: /lib64: No such file or directory

丢失的。好的，我们如何得到呢？ Alpine package repo说它是 libc6-compat的一部分。酷安装，一切都会起作用...对吗？

/ # apk add libc6-compat
(1/1) Installing libc6-compat (1.1.22-r3)
OK: 24 MiB in 37 packages
/ # ls /lib64
ld-linux-x86-64.so.2
/ # geckodriver --version
Error loading shared library libgcc_s.so.1: No such file or directory (needed by /usr/bin/geckodriver)
Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /usr/bin/geckodriver)
Error relocating /usr/bin/geckodriver: __register_atfork: symbol not found
Error relocating /usr/bin/geckodriver: _Unwind_Resume: symbol not found
Error relocating /usr/bin/geckodriver: __res_init: symbol not found
Error relocating /usr/bin/geckodriver: _Unwind_GetIP: symbol not found
Error relocating /usr/bin/geckodriver: _Unwind_Backtrace: symbol not found

...好吧，至少现在它可以将其识别为可执行文件...好，所以我们需要 libgcc_s.so.1。 That's in libgcc。说得通。

/ # apk add libgcc
(1/1) Installing libgcc (8.3.0-r0)
OK: 24 MiB in 38 packages
/ # geckodriver --version
Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /usr/bin/geckodriver)
Error relocating /usr/bin/geckodriver: __register_atfork: symbol not found
Error relocating /usr/bin/geckodriver: __res_init: symbol not found

什么？我们在 ld-linux-x86-64.so.2中有 /lib64，它在哪里看？我确实注意到 gcompat包为 /lib/ld-linux-x86-64.so.2，也许它在那儿？

# / apk add gcompat
(1/2) Installing libucontext (0.1.3-r1)
(2/2) Installing gcompat (0.4.0-r0)
OK: 24 MiB in 40 packages
# / geckodriver --version
Error relocating /usr/bin/geckodriver: __register_atfork: symbol not found
Error relocating /usr/bin/geckodriver: __res_init: symbol not found

那就是我的位置。搜寻 __register_atfork和 __res_init不会返回任何有用的信息。

Answer 1

因此，此问题的根本原因似乎是Alpine使用musl libc，而GeckoDriver(间接地)使用glibc。

SGerrand有一个很棒的glibc compatibility layer package for Alpine Linux，我们将利用它。

要在Alpine上运行GeckoDriver，请执行以下操作:

# Get all the prereqs
wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub
wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-2.30-r0.apk
wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-bin-2.30-r0.apk
apk add glibc-2.30-r0.apk
apk add glibc-bin-2.30-r0.apk

# And of course we need Firefox if we actually want to *use* GeckoDriver
apk add firefox-esr=60.9.0-r0

# Then install GeckoDriver
wget https://github.com/mozilla/geckodriver/releases/download/v0.26.0/geckodriver-v0.26.0-linux64.tar.gz
tar -zxf geckodriver-v0.26.0-linux64.tar.gz -C /usr/bin
geckodriver --version

注意事项:

仅在python:3.6.9-alpine3.10 docker镜像上进行了测试。

Alpine 3.10仅具有Firefox ESR60。幸运的是，GeckoDriver v0.26的最低版本为FireFox 60。

The Alpine Edge branch has Firefox-ESR 86 and Firefox 70。