1、由于无法从 dist 下载 yiisoft/yii2-composer (2.0.7)，现在尝试从源代码下载，Process 类依赖于 proc_open ，这在PHP安装中不可用，如图1
2、编辑 Dockerfile，在 disable_functions 中删除 proc_open、proc_close
Dockerfile
FROM registry-vpc.cn-beijing.aliyuncs.com/cmc/centos-nginx112-php71:0.2.4
MAINTAINER wjtester@sobey.com
RUN sed -i 's/open_basedir = .\/:\/sobey:\/tmp:\/data:\/webtv/;open_basedir = .\/:\/sobey:\/tmp:\/data:\/webtv:\/usr\/local\/php/g' /usr/local/php/etc/php.ini && \
sed -i 's/allow_url_fopen = Off/allow_url_fopen = On/g' /usr/local/php/etc/php.ini && \
sed -i 's/disable_functions = exec,system,passthru,shell_exec,escapeshellarg,escapeshellcmd,proc_close,proc_open,dl,popen,show/disable_functions = system,passthru,shell_exec,escapeshellarg,escapeshellcmd,dl,popen,show/g' /usr/local/php/etc/php.ini
COPY code /sobey/www/pcs-api
COPY code/build/c_files/ /
RUN chown -R nginx:nginx /sobey/www/ && \
rm -rf /etc/nginx/conf.d/status.conf && \
chmod +x /usr/local/bin/composer && \
cd /sobey/www/pcs-api && \
composer install
3、之前 proc_open、proc_close 也是禁用的，可以正常构建，原因在于可以从 dist 正常下载 yiisoft/yii2-composer (2.0.6)，因此，不会从源代码下载，也就不会使用到 proc_open、proc_close，如图2
4、重新构建镜像，从源代码下载成功，构建成功，如图3
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[…] 18、参考：Jenkins 构建镜像时，报错：The Process class relies on proc_open, which is not available on … 。 编辑 /usr/local/php/etc/php.ini，在 disable_functions 中删除 proc_open、proc_get_status […]
[…] Reference:The process class relies on proc_open, which is not available on your php installation. . Edit /usr/local/php/etc/php.ini, delete proc_open, proc_get_status in […]