Add support for docker-entrypoint.d

Dockerfile

@@ -1,5 +1,35 @@
 FROM php:7.1-apache
 
-COPY . /var/www/html
 
 HEALTHCHECK --interval=5s CMD curl -f http://localhost:$(cat /etc/apache2/ports.conf | grep '^Listen' | cut -d ' ' -f 2) || exit 1
+
+# Unfortunately this repository is used in other places and not simple to restructure.
+# All files are in the root at the moment.
+COPY H5P.Accordion.h5p /var/www/html
+COPY behat-rsstest.xml /var/www/html
+COPY downloadtests.md5 /var/www/html
+COPY downloadtests.zip /var/www/html
+COPY h5pcontenttypes.json /var/www/html
+COPY h5puuid.json /var/www/html
+COPY ical.ics /var/www/html
+COPY ims_cartridge_basic_lti_link.xml /var/www/html
+COPY index.html /var/www/html
+COPY lti_keyset.json /var/www/html
+COPY rss_redir.php /var/www/html
+COPY rsstest.xml /var/www/html
+COPY test.html /var/www/html
+COPY test.jpg /var/www/html
+COPY test_agent.php /var/www/html
+COPY test_file.php /var/www/html
+COPY test_file_name.php /var/www/html
+COPY test_post.php /var/www/html
+COPY test_redir.php /var/www/html
+COPY test_redir_proto.php /var/www/html
+COPY test_relative_redir.php /var/www/html
+COPY testnodtd.html /var/www/html
+
+# Create the entrypoint.
+COPY root/usr /usr
+
+CMD ["apache2-foreground"]
+ENTRYPOINT ["moodle-docker-php-entrypoint"]

root/usr/local/bin/moodle-docker-php-entrypoint

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+set -Eeo pipefail
+
+docker_process_init_files() {
+  local f
+  for f; do
+    case "$f" in
+      *.sh)
+        # Note: This hack is required for MacOS because the exeute bit is not checked for bind mounts.
+        # The executable bit is stored, but the test -x flag does not return corretly.
+        # Copying the file to an alternate file system allows it to be respected.
+        rm -f /tmp/testscript
+        cp "$f" /tmp/testscript
+        if [ -x "/tmp/testscript" ]; then
+          echo "$0: running $f"
+          "$f"
+        else
+          echo "$0: sourcing $f"
+          . "$f"
+        fi
+        ;;
+      *.ini)
+        echo "$0: copying $f into /usr/local/etc/php/conf.d/"
+        cp "$f" /usr/local/etc/php/conf.d/
+        ;;
+    esac
+  done
+}
+
+echo "Running entrypoint files from /docker-entrypoint.d/*"
+docker_process_init_files /docker-entrypoint.d/*
+echo
+
+echo "Starting docker-php-entrypoint with $@"
+source /usr/local/bin/docker-php-entrypoint
+echo