PHP-FPM with Nginx in different containers (share init.d response between)
Here is nginx and php done as an s2i builder image. You can basically have plain old php in a git repo and run s2i to make a runtime image that runs it with nginx and php. You simply docker build that dockerfile and pass the resultant image as the builder image to s2i along with your source code.

You will notice I have archived that project. That is because redhat have security patched image for php at https://access.redhat.com/containers/#/registry.access.redhat.com/rhscl/php-72-rhel7 they happen to use apache httpd but since I don’t see that I use tell s2i “make a runtime container for my php code in git” and it just works and I get frequent security patches it’s way easier than messing around with my own dockerfile to do security patches.