Dockerfile:从源代码安装PHP，docker-php-ext-install不工作

Question

我正在构建一个从源代码安装PHP的基本映像，并试图安装一些扩展。我在扩展安装中发现了一些不一致之处，并在寻找一些清晰的地方。我把码头文件的某些部分排除在外。

FROM private-registry:hardened-ubuntu20:latest as base

COPY --from=php:7.4-fpm /usr/local/bin/docker-php-ext-install /usr/local/bin/docker-php-ext-install
COPY --from=php:7.4-fpm /usr/local/bin/docker-php-source /usr/local/bin/docker-php-source
COPY --from=php:7.4-fpm /usr/local/bin/docker-php-ext-enable /usr/local/bin/docker-php-ext-enable
COPY --from=php:7.4-fpm /usr/local/bin/docker-php-ext-configure /usr/local/bin/docker-php-ext-configure
COPY --from=php:7.4-fpm /usr/local/bin/phpize /usr/local/bin/phpize
COPY --from=php:7.4-fpm /usr/src/php.tar.xz /usr/src/php.tar.xz

ENV PHP_INI_DIR=/usr/local/etc/php

RUN apt-get update \ 
    && apt-get install -y \
        #PHP extension requirements


RUN docker-php-source extract \
    && cd /usr/src/php \
    && ./configure \
        --enable-fpm \
        --with-fpm-user=www-data \
        --with-fpm-group=www-data \
        --enable-mysqlnd \
        --with-pdo-mysql=mysqlnd \
        --enable-mbstring \
        --with-openssl \
    && make \
    && make install \
    && docker-php-source delete

当我使用所需的扩展运行时，所有的安装似乎都是正确的，并且我的子映像能够获取它们。

但是，在上面的片段中，如果我删除--enable-mbstring行并尝试使用docker-php-ext-install mbstring安装它，子映像似乎没有安装扩展。.ini文件是按预期在/usr/local/etc/php/conf.d中创建的，它出现在子图像中，但没有满足要求。如果我删除--enable-mysqlnd并尝试使用docker-php-ext-install mysqli进行安装，情况也是如此。

因此，为了巩固，如果我省略了任何配置选项，并且只使用docker-php-ext-install安装我的扩展，则安装似乎无法工作。我可以在基本映像中的./configure调用中包含所有必需的扩展，但这是有问题的，因为我们系统中的一些子映像正在它们的Dockerfile中调用docker-php-ext-install，并且我们希望能够更改基本映像而不需要对子映像进行任何更改。底线是，docker-php-ext-install必须工作。

，例如

FROM parent-image-with-php-from-source
...
docker-php-ext-install bcmath
...

子图像生成输出：bcMath似乎安装正确，但在后面的层中，这一要求没有得到满足。

...

PATH="$PATH:/sbin" ldconfig -n /usr/src/php/ext/bcmath/modules
----------------------------------------------------------------------              
Libraries have been installed in:                                                                          
   /usr/src/php/ext/bcmath/modules
                                                                                                                       
If you ever happen to want to link against installed libraries                                         
in a given directory, LIBDIR, you must either use libtool, and                              
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:                                                                                                                                                   
   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
     during execution                         
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-Wl,--rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------

Build complete.
Don't forget to run 'make test'.


...


Step 21/29 : RUN composer install     --no-cache        --no-scripts    --no-autoloader         --no-ansi       --no-dev        --optimize-autoloader   --no-interaction        --no-progress   --prefer-dis
t
 ---> Running in ace1fd609a27
Installing dependencies from lock file
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - The requested PHP extension ext-bcmath * is missing from your system. Install or enable PHP's bcmath extension.
  Problem 2
    - Installation request for s1lentium/iptools v1.1.1 -> satisfiable by s1lentium/iptools[v1.1.1].
    - s1lentium/iptools v1.1.1 requires ext-bcmath * -> the requested PHP extension bcmath is missing from your system.
  Problem 3
    - Installation request for sabre/http 5.1.1 -> satisfiable by sabre/http[5.1.1].
    - sabre/http 5.1.1 requires ext-curl * -> the requested PHP extension curl is missing from your system.
  Problem 4
    - s1lentium/iptools v1.1.1 requires ext-bcmath * -> the requested PHP extension bcmath is missing from your system.
    - casbin/casbin v2.4.0 requires s1lentium/iptools ^1.1 -> satisfiable by s1lentium/iptools[v1.1.1].
    - Installation request for casbin/casbin v2.4.0 -> satisfiable by casbin/casbin[v2.4.0].

The command '/bin/sh -c composer install     --no-cache         --no-scripts    --no-autoloader         --no-ansi       --no-dev        --optimize-autoloader   --no-interaction        --no-progress   --pr
efer-dist' returned a non-zero code: 2

任何洞察力都将不胜感激。我想知道是否可以像修改路径一样简单，但我不确定。

Answer 1

我想我发现了这个问题-

我需要在我的./configure调用中添加以下标志

--with-config-file-scan-dir=/usr/local/etc/php/conf.d \
--with-config-file-path=/usr/local/etc/php \

现在，子图像知道在哪里查找docker-php-ext-*..ini文件。