1. Because yiisoft/yii2-composer (2.0.7) could not be downloaded from dist, it now attempts to download from source. The Process class relies on proc_open, which is not available on your PHP installation, as shown in Figure 1.
2. Edit the Dockerfile to remove proc_open and proc_close from disable_functions.
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. Previously, proc_open and proc_close were also disabled, but the build worked fine. This was because yiisoft/yii2-composer (2.0.6) could be downloaded normally from dist, so it would not download from source and thus would not use proc_open or proc_close, as shown in Figure 2.
4. Rebuild the image; the download from source succeeds and the build completes successfully, as shown in Figure 3.
