Finish merging php.ini files

Author: mnapoli

layers/fpm/bref.ini

@@ -535,12 +535,12 @@ FROM public.ecr.aws/lambda/provided:al2-${IMAGE_VERSION_SUFFIX} as function
 # We selected the files in /bref-layer, now we copy them to /opt (the real directory for the Lambda layer)
 COPY --link --from=build-environment /bref-layer /opt
 
-COPY --link layers/php.ini /opt/bref/etc/php/conf.d/bref.ini
-COPY --link layers/php-fpm.conf /opt/bref/etc/php-fpm.conf
+COPY --link src/php.ini /opt/bref/etc/php/conf.d/bref.ini
+COPY --link src/php-fpm.conf /opt/bref/etc/php-fpm.conf
 
-COPY --link layers/bootstrap.php /opt/bootstrap
+COPY --link src/bootstrap.php /opt/bootstrap
 # Copy files to /var/runtime to support deploying as a Docker image
-COPY --link layers/bootstrap.php /var/runtime/bootstrap
+COPY --link src/bootstrap.php /var/runtime/bootstrap
 RUN chmod +x /opt/bootstrap && chmod +x /var/runtime/bootstrap
 
 
@@ -558,7 +558,7 @@ RUN cp $(php -r "echo ini_get('extension_dir');")/xdebug.so /opt/bref/extensions
 FROM function as dev
 
 COPY --link --from=build_dev /opt /opt
-COPY --link layers/dev-entrypoint.sh /bref-entrypoint.sh
+COPY --link src/dev-entrypoint.sh /bref-entrypoint.sh
 RUN chmod +x /bref-entrypoint.sh
 
 # Install node to run the JS app below

php-84/Dockerfile

@@ -12,8 +12,10 @@ memory_limit=10240M
 opcache.enable=1
 opcache.enable_cli=1
 
-; Store the opcodes into a file cache instead of memory
-; Since PHP runs on lambdas with a new process each time the memory cache is lost
+; Store the opcodes into a file cache (on top of storing in memory)
+; With FPM, this is only useful if FPM restarts or if the shared memory cache is full.
+; With the function runtime, this is useful when the function restarts the PHP
+; process on every invocation.
 ; TODO store in a subdirectory (but the problem is that the subdirectory doesn't exist when PHP starts...)
 opcache.file_cache="/tmp"
 ; Disable the memory cache since it's useless