DockerFile

FROM harbor.ym/php-fpm/php56fpm
RUN apk add make gcc libc-dev libcurl curl-dev libpng libpng-dev openldap-dev postgresql-dev autoconf && \ 
    cd /tmp && \
    wget "https://www.php.net/distributions/php-5.6.40.tar.gz" && \
    tar -xzvf php-5.6.40.tar.gz && cd php-5.6.40 && \
    ./configure --prefix=/usr/local/php5.6.40/ \ 
    --with-config-file-path=/usr/local/php5.6.40/etc/ --with-config-file-scan-dir=/usr/local/php5.6.40/etc/conf/ \
    --enable-bcmath --with-curl --enable-exif --with-gd --with-ldap --enable-mbstring --with-mysql --with-mysqli --enable-pcntl --enable-opcache --with-pdo-mysql \
    --with-pdo-pgsql --without-pdo-sqlite --with-pgsql --enable-phpdbg --enable-maintainer-zts &&\
    make && make install &&\
    cp php.ini-production /usr/local/php5.6.40/etc/php.ini && \
    #add redis
    wget "https://pecl.php.net/get/redis-4.3.0.tgz" && tar -xzvf redis-4.3.0.tgz && cd redis-4.3.0 && /usr/local/php5.6.40/bin/phpize &&\
    ./configure --with-php-config=/usr/local/php5.6.40/bin/php-config && make && make install && \
    mkdir /usr/local/php5.6.40/etc/conf &&\
    echo extension=redis.so >> /usr/local/php5.6.40/etc/conf/redis.ini &&\ 
    wget https://pecl.php.net/get/pthreads-2.0.10.tgz && tar -xzvf pthreads-2.0.10.tgz && cd pthreads-2.0.10 && /usr/local/php5.6.40/bin/phpize &&\
    ./configure --with-php-config=/usr/local/php5.6.40/bin/php-config && make && make install && \
    echo extension=pthreads.so >> /usr/local/php5.6.40/etc/conf/redis.ini &&\
    rm -rf /tmp/* && \
    apk del make gcc libc-dev libcurl curl-dev libpng libpng-dev openldap-dev postgresql-dev autoconf && \
    apk cache --purge

安装通用依赖：

-dev和-devel 后缀的包是一样的，比如libxml2-devel ，如果apk add libxml2-devel 找不到，则可以用libxml2-dev  ，一般来说如果缺少xx包，一般需要按照xx-dev/devel的包依赖。

有dev/devel后缀的是指开发包，包括配置，否则只有库包。如果是编译安装，则需要安装dev/devel后缀的依赖包。比如：需要 sqlite-dev-3.35.5-r0,而不是sqlite-3.35.5-r0（这个装了还是会提示没有依赖包）

apk add make gcc libc-dev libcurl curl-dev libpng libpng-dev openldap-dev postgresql-dev autoconf libxml2-dev freetype-dev oniguruma-dev gettext-dev sqlite-dev libjpeg-turbo-dev

./configure 后如果发现少了依赖比如：libjpeg

apk search libjpeg