Add logging customization support via env variables

22/apache/config/logging.config.php

@@ -0,0 +1,13 @@
+<?php
+
+$CONFIG = array(
+    'loglevel' => getenv('LOGLEVEL') ?: 2,
+    'logtimezone' => getenv('LOGTIMEZONE') ?: 'UTC',
+    'syslog_tag' => getenv('LOGTAG') ?: 'Nextcloud',
+);
+
+if (getenv('LOGFILE')) {
+    $CONFIG['logfile'] = getenv('LOGFILE');
+} else {
+    $CONFIG['logfile'] = getenv('NEXTCLOUD_DATA_DIR') ?: '/var/www/nextcloud' + '/nextcloud.log';
+}

22/fpm-alpine/config/logging.config.php

@@ -0,0 +1,13 @@
+<?php
+
+$CONFIG = array(
+    'loglevel' => getenv('LOGLEVEL') ?: 2,
+    'logtimezone' => getenv('LOGTIMEZONE') ?: 'UTC',
+    'syslog_tag' => getenv('LOGTAG') ?: 'Nextcloud',
+);
+
+if (getenv('LOGFILE')) {
+    $CONFIG['logfile'] = getenv('LOGFILE');
+} else {
+    $CONFIG['logfile'] = getenv('NEXTCLOUD_DATA_DIR') ?: '/var/www/nextcloud' + '/nextcloud.log';
+}

22/fpm/config/logging.config.php

@@ -0,0 +1,13 @@
+<?php
+
+$CONFIG = array(
+    'loglevel' => getenv('LOGLEVEL') ?: 2,
+    'logtimezone' => getenv('LOGTIMEZONE') ?: 'UTC',
+    'syslog_tag' => getenv('LOGTAG') ?: 'Nextcloud',
+);
+
+if (getenv('LOGFILE')) {
+    $CONFIG['logfile'] = getenv('LOGFILE');
+} else {
+    $CONFIG['logfile'] = getenv('NEXTCLOUD_DATA_DIR') ?: '/var/www/nextcloud' + '/nextcloud.log';
+}

23/apache/config/logging.config.php

@@ -0,0 +1,13 @@
+<?php
+
+$CONFIG = array(
+    'loglevel' => getenv('LOGLEVEL') ?: 2,
+    'logtimezone' => getenv('LOGTIMEZONE') ?: 'UTC',
+    'syslog_tag' => getenv('LOGTAG') ?: 'Nextcloud',
+);
+
+if (getenv('LOGFILE')) {
+    $CONFIG['logfile'] = getenv('LOGFILE');
+} else {
+    $CONFIG['logfile'] = getenv('NEXTCLOUD_DATA_DIR') ?: '/var/www/nextcloud' + '/nextcloud.log';
+}

23/fpm-alpine/config/logging.config.php

@@ -0,0 +1,13 @@
+<?php
+
+$CONFIG = array(
+    'loglevel' => getenv('LOGLEVEL') ?: 2,
+    'logtimezone' => getenv('LOGTIMEZONE') ?: 'UTC',
+    'syslog_tag' => getenv('LOGTAG') ?: 'Nextcloud',
+);
+
+if (getenv('LOGFILE')) {
+    $CONFIG['logfile'] = getenv('LOGFILE');
+} else {
+    $CONFIG['logfile'] = getenv('NEXTCLOUD_DATA_DIR') ?: '/var/www/nextcloud' + '/nextcloud.log';
+}

23/fpm/config/logging.config.php

@@ -0,0 +1,13 @@
+<?php
+
+$CONFIG = array(
+    'loglevel' => getenv('LOGLEVEL') ?: 2,
+    'logtimezone' => getenv('LOGTIMEZONE') ?: 'UTC',
+    'syslog_tag' => getenv('LOGTAG') ?: 'Nextcloud',
+);
+
+if (getenv('LOGFILE')) {
+    $CONFIG['logfile'] = getenv('LOGFILE');
+} else {
+    $CONFIG['logfile'] = getenv('NEXTCLOUD_DATA_DIR') ?: '/var/www/nextcloud' + '/nextcloud.log';
+}

24/apache/config/logging.config.php

@@ -0,0 +1,13 @@
+<?php
+
+$CONFIG = array(
+    'loglevel' => getenv('LOGLEVEL') ?: 2,
+    'logtimezone' => getenv('LOGTIMEZONE') ?: 'UTC',
+    'syslog_tag' => getenv('LOGTAG') ?: 'Nextcloud',
+);
+
+if (getenv('LOGFILE')) {
+    $CONFIG['logfile'] = getenv('LOGFILE');
+} else {
+    $CONFIG['logfile'] = getenv('NEXTCLOUD_DATA_DIR') ?: '/var/www/nextcloud' + '/nextcloud.log';
+}

24/fpm-alpine/config/logging.config.php

@@ -0,0 +1,13 @@
+<?php
+
+$CONFIG = array(
+    'loglevel' => getenv('LOGLEVEL') ?: 2,
+    'logtimezone' => getenv('LOGTIMEZONE') ?: 'UTC',
+    'syslog_tag' => getenv('LOGTAG') ?: 'Nextcloud',
+);
+
+if (getenv('LOGFILE')) {
+    $CONFIG['logfile'] = getenv('LOGFILE');
+} else {
+    $CONFIG['logfile'] = getenv('NEXTCLOUD_DATA_DIR') ?: '/var/www/nextcloud' + '/nextcloud.log';
+}

24/fpm/config/logging.config.php

@@ -0,0 +1,13 @@
+<?php
+
+$CONFIG = array(
+    'loglevel' => getenv('LOGLEVEL') ?: 2,
+    'logtimezone' => getenv('LOGTIMEZONE') ?: 'UTC',
+    'syslog_tag' => getenv('LOGTAG') ?: 'Nextcloud',
+);
+
+if (getenv('LOGFILE')) {
+    $CONFIG['logfile'] = getenv('LOGFILE');
+} else {
+    $CONFIG['logfile'] = getenv('NEXTCLOUD_DATA_DIR') ?: '/var/www/nextcloud' + '/nextcloud.log';
+}

README.md

@@ -195,6 +195,15 @@ To customize other PHP limits you can simply 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.
 
+To customize the default logging behavior you can simply set the following variables:
+
+- `LOGLEVEL` (default: `2 (WARN)`) Logging verbosity
+- `LOGTIMEZONE` (default: `UTC`) Logging timezone
+- `LOGTAG` (default: `Nextcloud`) Logging identify tag for syslog
+- `LOGFILE` (defaults back to `NEXTCLOUD_DATA_DIR` or if also not set to file `/nextcloud.log`) this sets the logfile variable. It's possible to set this to StdOut with `/dev/stdout`
+
+Check the [Nextcloud documentation](https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/logging_configuration.html) for more information.
+
 
 ## Using the apache image behind a reverse proxy and auto configure server host and protocol