我不确定这是否是问这个问题的正确地方。我会尽力。如果不符合要求，请关闭。
我在使用docker octopress在github.io上发布内容时遇到问题，特别是在Alpine Linux上。
这是我的Dockerfile:
FROM alpine:edge
MAINTAINER Emanuele Ianni <[email protected]>
ENV BUILD_PACKAGES bash curl-dev build-base git
ENV RUBY_PACKAGES ruby ruby-dev ruby-io-console ruby-bundler
ENV EXECJS_DEPENDENCY nodejs
ENV GIT_URL https://github.com/invasionofsmallcubes/invasionofsmallcubes.github.io.git
# Update and install all of the required packages.
# At the end, remove the apk cache
RUN apk update && \
apk upgrade && \
apk add $BUILD_PACKAGES && \
apk add $RUBY_PACKAGES && \
apk add $EXECJS_DEPENDENCY && \
rm -rf /var/cache/apk/*
# RUN gem install --no-rdoc --no-ri posix-spawn -v 0.3.11
RUN gem install --no-rdoc --no-ri execjs
# cloning existing octopress repo
WORKDIR ~
RUN git clone $GIT_URL octopress
WORKDIR octopress
RUN gem install --no-rdoc --no-ri bundler
它在这里中断，这是步骤12
RUN bundle install的一部分: Installing posix-spawn 0.3.6 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/usr/bin/ruby -r ./siteconf20150914-5-1oxh9qm.rb extconf.rb
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
compiling posix-spawn.c
In file included from /usr/include/ruby-2.2.0/ruby/ruby.h:24:0,
from /usr/include/ruby-2.2.0/ruby.h:33,
from posix-spawn.c:14:
/usr/include/ruby-2.2.0/x86_64-linux-musl/ruby/config.h:17:0: warning: "_GNU_SOURCE" redefined
#define _GNU_SOURCE 1
^
posix-spawn.c:3:0: note: this is the location of the previous definition
#define _GNU_SOURCE
^
posix-spawn.c: In function 'rb_posixspawn_pspawn':
posix-spawn.c:403:11: error: 'POSIX_SPAWN_USEVFORK' undeclared (first use in this function)
flags |= POSIX_SPAWN_USEVFORK;
^
posix-spawn.c:403:11: note: each undeclared identifier is reported only once for each function it appears in
Makefile:237: recipe for target 'posix-spawn.o' failed
make: *** [posix-spawn.o] Error 1
make failed, exit code 2
Gem files will remain installed in /usr/lib/ruby/gems/2.2.0/gems/posix-spawn-0.3.6 for inspection.
Results logged to /usr/lib/ruby/gems/2.2.0/extensions/x86_64-linux/2.2.0/posix-spawn-0.3.6/gem_make.out
An error occurred while installing posix-spawn (0.3.6), and Bundler cannot
continue.
Make sure that `gem install posix-spawn -v '0.3.6'` succeeds before bundling.
The command '/bin/sh -c bundle install' returned a non-zero code: 5
我没有安装较大版本的posix-spawn的问题，但这是 bundle 安装所需的版本。
如果我使用Ubuntu运行文件，则不会出现此错误:
Installing syntax 1.0.0
Installing maruku 0.6.1
Installing posix-spawn 0.3.6 with native extensions
Installing yajl-ruby 1.1.0 with native extensions
我已经安装了ruby-dev，所以我认为这就足够了。你知道我还有什么可以检查的吗？
最佳答案
Alpine Linux使用musl libc而不是glibc，这有时会导致一些极端情况。参见issue #54 at rtomayko/posix-spawn。
如果您坚持使用Alpine，有两种可能的解决方案。首先是在 Alpine 上 check out this experimental package的posix-spawn。当然，您必须在http://dl-4.alpinelinux.org/alpine/edge/testing/x86_64/上添加边缘/测试存储库
另外，您可以为Alpine安装实验性glibc软件包。这是用于安装Java 8 JDK入门的示例:https://github.com/sillelien/base-java/blob/master/Dockerfile(特别是第10-16行)。
当然，如果您无法进行其他操作，则始终可以使用debian:jessie(或Ubuntu)代替Alpine。那不是世界末日，但是作为阿尔卑斯迷，我想知道您是否想继续尝试解决方法以使Octopress在阿尔卑斯上工作。
希望这可以帮助!
关于docker - 使用Alpine Linux对octopress进行Docker化，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/32560047/