make PHP worker process and memory limits configurable

app/Dockerfile

@@ -28,6 +28,9 @@ ADD config.docker.php ${SCRIPT_ROOT}
 ENV OWNER_UID=1000
 ENV OWNER_GID=1000
 
+ENV PHP_WORKER_MAX_CHILDREN=5
+ENV PHP_WORKER_MEMORY_LIMIT=256M
+
 # don't try to update local plugins on startup (except for nginx_xaccel)
 ENV TTRSS_NO_STARTUP_PLUGIN_UPDATES=""
 

app/startup.sh

@@ -120,4 +120,10 @@ rm -f /tmp/error.log && mkfifo /tmp/error.log && chown app:app /tmp/error.log
 
 touch $DST_DIR/.app_is_ready
 
+sed -i.bak "s/^\(memory_limit\) = \(.*\)/\1 = ${PHP_WORKER_MEMORY_LIMIT}/" \
+	/etc/php8/php.ini
+
+sed -i.bak "s/^\(pm.max_children\) = \(.*\)/\1 = ${PHP_WORKER_MAX_CHILDREN}/" \
+	/etc/php8/php-fpm.d/www.conf
+
 exec /usr/sbin/php-fpm8 --nodaemonize --force-stderr -R