fix: move error log to stderr globally

Dockerfile.multiarch

@@ -38,7 +38,7 @@ RUN mkdir -p /var/www /etc/nginx-s3 /etc/nginx/conf.d /var/tmp/nginx /var/cache/
     touch /run/nginx.pid && \
     touch /etc/nginx/conf.d/vhosts.conf && \
     chown nginx /run/nginx.pid && \
-    chown -R nginx /var/log/nginx /var/tmp/nginx /var/cache/nginx && \
+    chown -R nginx /var/tmp/nginx /var/cache/nginx && \
     chown -R nginx:nginx /var/www && \
     chown -R root:nginx /etc/nginx /etc/nginx/conf.d && \
     chmod -R 640 /etc/nginx /etc/nginx/conf.d && \

overlay/etc/nginx/nginx.conf

@@ -1,5 +1,6 @@
 worker_processes 1;
 pid /var/run/nginx.pid;
+error_log stderr error;
 
 events {
     worker_connections 1024;
@@ -15,7 +16,6 @@ http {
     keepalive_timeout 65;
     server_tokens off;
     access_log off;
-    error_log          /dev/stderr;
 
     fastcgi_buffers 16 16k;
     fastcgi_buffer_size 32k;

overlay/usr/local/bin/entrypoint

@@ -8,12 +8,12 @@ set -eo pipefail
 
 start_server() {
     log_info "Start nginx server"
-    if ! nginx -q -g 'daemon off;' -t; then
+    if ! nginx -e stderr -q -g 'daemon off;' -t; then
         log_error 'Nginx config validation failed, exit'
         exit 1
     fi
 
-    exec nginx -g "daemon off;" &
+    exec nginx -e stderr -g "daemon off;" &
     PID=$!
 
     {
@@ -21,7 +21,7 @@ start_server() {
             inotifywait -rq --timefmt "%F %T" --format "%T [INFO] [$(basename "$0")] %e %f" -e modify,move,create,delete /etc/nginx/
             log_info 'Detected nginx config update, run validation'
 
-            if ! nginx -q -g 'daemon off;' -t; then
+            if ! nginx -e stderr -q -g 'daemon off;' -t; then
                 log_warn 'Nginx config validation failed, skip reload'
                 continue
             fi