use var PHP_OPCACHE_MEMORY_CONSUMPTION for configuration (#2090)

* use var PHP_OPCACHE_MEMORY_CONSUMTION for configuration

Signed-off-by: Thomas Clavier <tom@tcweb.org>

* Use PHP_OPCACHE_MEMORY_CONSUMTION in Dockerfile-alpine.template

Signed-off-by: Thomas Clavier <tom@tcweb.org>

* fix typo : CONSUMTION -> CONSUMPTION

* Add opcache.memory_consumption documentation

* fix typo

---------

Signed-off-by: Thomas Clavier <tom@tcweb.org>

Author: tclavier

Dockerfile-alpine.template

@@ -88,11 +88,12 @@ RUN set -ex; \
 # see https://docs.nextcloud.com/server/latest/admin_manual/installation/server_tuning.html#enable-php-opcache
 ENV PHP_MEMORY_LIMIT 512M
 ENV PHP_UPLOAD_LIMIT 512M
+ENV PHP_OPCACHE_MEMORY_CONSUMPTION 128
 RUN { \
         echo 'opcache.enable=1'; \
         echo 'opcache.interned_strings_buffer=32'; \
         echo 'opcache.max_accelerated_files=10000'; \
-        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.memory_consumption=${PHP_OPCACHE_MEMORY_CONSUMPTION}'; \
         echo 'opcache.save_comments=1'; \
         echo 'opcache.revalidate_freq=60'; \
         echo 'opcache.jit=1255'; \

Dockerfile-debian.template

@@ -20,6 +20,7 @@ RUN set -ex; \
 # see https://docs.nextcloud.com/server/stable/admin_manual/installation/source_installation.html
 ENV PHP_MEMORY_LIMIT 512M
 ENV PHP_UPLOAD_LIMIT 512M
+ENV PHP_OPCACHE_MEMORY_CONSUMPTION 128
 RUN set -ex; \
     \
     savedAptMark="$(apt-mark showmanual)"; \
@@ -97,7 +98,7 @@ RUN { \
         echo 'opcache.enable=1'; \
         echo 'opcache.interned_strings_buffer=32'; \
         echo 'opcache.max_accelerated_files=10000'; \
-        echo 'opcache.memory_consumption=128'; \
+        echo 'opcache.memory_consumption=${PHP_OPCACHE_MEMORY_CONSUMPTION}'; \
         echo 'opcache.save_comments=1'; \
         echo 'opcache.revalidate_freq=60'; \
         echo 'opcache.jit=1255'; \

README.md

@@ -300,6 +300,7 @@ Check the [Nextcloud documentation](https://docs.nextcloud.com/server/latest/adm
 To customize PHP limits you can change the following variables:
 - `PHP_MEMORY_LIMIT` (default `512M`) This sets the maximum amount of memory in bytes that a script is allowed to allocate. This is meant to help prevent poorly written scripts from eating up all available memory but it can prevent normal operation if set too tight.
 - `PHP_UPLOAD_LIMIT` (default `512M`) This sets the upload limit (`post_max_size` and `upload_max_filesize`) for big files. Note that you may have to change other limits depending on your client, webserver or operating system. Check the [Nextcloud documentation](https://docs.nextcloud.com/server/latest/admin_manual/configuration_files/big_file_upload_configuration.html) for more information.
+- `PHP_OPCACHE_MEMORY_CONSUMPTION` (default `128`) This sets the `opcache.memory_consumption` value. It's the size of the shared memory storage used by OPcache, in megabytes. 
 
 ### Apache Configuration