docs(): update readme

Dockerfile

@@ -5,7 +5,7 @@ LABEL description "Rainloop is a simple, modern & fast web-based client" \
 
 ARG GPG_FINGERPRINT="3B79 7ECE 694F 3B7B 70F3  11A4 ED7C 49D9 87DA 4591"
 
-ENV UID=991 GID=991 UPLOAD_MAX_SIZE=25M
+ENV UID=991 GID=991 UPLOAD_MAX_SIZE=25M LOG_TO_STDOUT=false
 
 RUN echo "@community https://nl.alpinelinux.org/alpine/v3.7/community" >> /etc/apk/repositories \
  && apk -U upgrade \

README.md

@@ -30,7 +30,7 @@ Rainloop is a simple, modern & fast web-based client. More details on the [offic
 | **UID** | rainloop user id | *optional* | 991
 | **GID** | rainloop group id | *optional* | 991
 | **UPLOAD_MAX_SIZE** | Attachment size limit | *optional* | 25M
-| **LOG_TO_STDOUT** | set to "true" | *optional* | undef
+| **LOG_TO_STDOUT** | Enable nginx and php error logs to stdout | *optional* | false
 
 ### Docker-compose.yml
 

rootfs/usr/local/bin/run.sh

@@ -9,10 +9,11 @@ if [ -d "/rainloop/data/_data_/_default_/plugins/postfixadmin-change-password" ]
 fi
 
 # Set log output to STDOUT if wanted (LOG_TO_STDOUT=true)
-if [ "$LOG_TO_STDOUT" == "true" ]; then
+if [ "$LOG_TO_STDOUT" = true ]; then
+  echo "[INFO] Logging to stdout activated"
   chmod o+w /dev/stdout
   sed -i "s/.*error_log.*$/error_log \/dev\/stdout warn;/" /etc/nginx/nginx.conf
-  echo "Logging to STDOUT activated" > /dev/stdout
+  sed -i "s/.*error_log.*$/error_log = \/dev\/stdout/" /etc/php7/php-fpm.conf
 fi
 
 # Add postfixadmin-change-password plugin