Question

我正在尝试使用Dockerfile构建一个小导出，其中包含Perl，curl和git，以便与GitHub一起用作chroot环境。任何将curl或git放入Dockerfile的尝试都会导致从导出的tar文件中删除目录。我可以将Perl与其他软件包（例如Firefox）结合使用，最终得到一个可用的tar。

这是Dockerfile。如上所述，如果我只使用Perl请求Perl或者除了卷曲/ git以外的任何东西，它确实有效。

FROM gliderlabs/alpine:3.4

RUN apk add --update \
    curl \
    perl-dev \
    git \
  && rm -rf /var/cache/apk/*

ENTRYPOINT ["/usr/bin/perl", "-de0"]

欢迎任何见解。

Answer 1

要尝试的一些事情

尝试额外的＆＃34; RUN＆＃34;每次安装的命令
在每个步骤后删除缓存
在构建docker镜像时使用no cache选项。 docker build -no-cache

Answer 2

我没有问题地运行你的Dockerfile：

$ cat df.alpine
FROM gliderlabs/alpine:3.4

RUN apk add --update \
    curl \
    perl-dev \
    git \
  && rm -rf /var/cache/apk/*

$ docker build -t alpinetest -f df.alpine .
Sending build context to Docker daemon 37.89 kB
Step 1 : FROM gliderlabs/alpine:3.4
3.4: Pulling from gliderlabs/alpine
a03be5b52c0f: Pull complete
Digest: sha256:f34605566fc0827029c786094d104703f68953a7845d5bf4334c4c50fea6200c
Status: Downloaded newer image for gliderlabs/alpine:3.4
 ---> eeae34df12d9
Step 2 : RUN apk add --update     curl     perl-dev     git   && rm -rf /var/cache/apk/*
 ---> Running in 21aeec842908
fetch http://alpine.gliderlabs.com/alpine/v3.4/main/x86_64/APKINDEX.tar.gz
fetch http://alpine.gliderlabs.com/alpine/v3.4/community/x86_64/APKINDEX.tar.gz
(1/9) Installing ca-certificates (20160104-r4)
(2/9) Installing libssh2 (1.7.0-r0)
(3/9) Installing libcurl (7.49.1-r0)
(4/9) Installing curl (7.49.1-r0)
(5/9) Installing expat (2.1.1-r1)
(6/9) Installing pcre (8.38-r1)
(7/9) Installing git (2.8.3-r0)
(8/9) Installing perl (5.22.2-r0)
(9/9) Installing perl-dev (5.22.2-r0)
Executing busybox-1.24.2-r9.trigger
Executing ca-certificates-20160104-r4.trigger
OK: 69 MiB in 20 packages
 ---> 7ee2fd822c7a
Removing intermediate container 21aeec842908
Successfully built 7ee2fd822c7a

$ docker run --rm -it alpinetest /bin/sh
/ # which git
/usr/bin/git
/ # which perl
/usr/bin/perl
/ # which curl
/usr/bin/curl

/ # perl -v

This is perl 5, version 22, subversion 2 (v5.22.2) built for x86_64-linux-thread-multi

Copyright 1987-2015, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl".  If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.

/ # curl --version
curl 7.49.1 (x86_64-alpine-linux-musl) libcurl/7.49.1 OpenSSL/1.0.2h zlib/1.2.8 libssh2/1.7.0
Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: IPv6 Largefile NTLM NTLM_WB SSL libz TLS-SRP UnixSockets

/ # git --version
git version 2.8.3

如果您的输出与上述内容不同，请更新您的问题以了解更多详情。

编辑：根据您的请求，我还包含了一个导出，二进制文件显示没有问题：

$ docker create --name alpinetestc alpinetest /bin/true
$ docker export alpinetestc | gzip >alpinetest.tgz
$ tar -tvzf alpinetest.tgz usr/bin/git
-rwxr-xr-x 0/0         1944216 2016-05-26 10:44 usr/bin/git
$ tar -tvzf alpinetest.tgz usr/bin/curl
-rwxr-xr-x 0/0          173912 2016-05-30 12:11 usr/bin/curl
$ tar -tvzf alpinetest.tgz usr/bin/perl
-rwxr-xr-x 0/0            9872 2016-05-16 06:22 usr/bin/perl

您似乎没有提供足够的详细信息来重现您的问题。

构建Dockerfile时，我不能在同一个定义中使用Perl和curl / git

2 个答案: