Some opcache and composer optimizations

- add opcache preload to docs and docker config
- add disable opcache timestamp validation in docs and docker config
- enable composers authoritative classmap

Author: BentiGorlich

composer.json

@@ -156,6 +156,7 @@
             "ergebnis/composer-normalize": true
         },
         "optimize-autoloader": true,
+        "classmap-authoritative": true,
         "preferred-install": {
             "*": "dist"
         },

docker/php/conf.d/app.prod.ini

@@ -8,4 +8,7 @@ opcache.enable_cli=1
 opcache.memory_consumption=512
 opcache.interned_strings_buffer=128
 opcache.max_accelerated_files=100000
-opcache.jit_buffer_size=500M
+opcache.validate_timestamps=0
+opcache.preload=/var/www/mbin/config/preload.php
+opcache.preload_user=www-data
+opcache.jit_buffer_size=500M

docs/02-admin/01-installation/01-bare_metal.md

@@ -265,18 +265,20 @@ realpath_cache_size = 4096K
 realpath_cache_ttl = 600
 ```
 
-Optionally also enable OPCache for improved performances with PHP (recommended for both fpm and cli ini files):
+Optionally also enable OPCache for improved performances with PHP (replace `/var/www/mbin` with `/var/www/kbin` if needed):
 
 ```ini
 opcache.enable = 1
 opcache.enable_cli = 1
+opcache.preload = /var/www/mbin/config/preload.php
+opcache.preload_user = www-data
 ; Memory consumption (in MBs), personal preference
 opcache.memory_consumption = 512
 ; Internal string buffer (in MBs), personal preference
 opcache.interned_strings_buffer = 128
 opcache.max_accelerated_files = 100000
-; Enable PHP JIT with all optimizations
-opcache.jit = 1255
+opcache.validate_timestamps = 0
+; Enable PHP JIT
 opcache.jit_buffer_size = 500M
 ```