Nginx: disable open_file_cache if media is on NFS

docker/main/rootfs/etc/s6-overlay/s6-rc.d/nginx/run

@@ -89,6 +89,15 @@ python3 /usr/local/nginx/get_tls_settings.py | \
     tempio  -template /usr/local/nginx/templates/listen.gotmpl \
             -out /usr/local/nginx/conf/listen.conf
 
+# disable open_file_cache on NFS filesystems
+# https://trac.nginx.org/nginx/ticket/478
+NFS_CLIPS_FS=`findmnt -n -o FSTYPE --target /media/frigate/clips`
+
+shopt -s nocasematch; if [[ "$NFS_CLIPS_FS" =~ ^nfs* ]]; then
+    echo "[INFO] NFS mount detected for /media/frigate/clips, disabling NGINX open_file_cache"
+    echo "open_file_cache off;" > /usr/local/nginx/conf/open_file_cache.conf
+fi
+
 # Replace the bash process with the NGINX process, redirecting stderr to stdout
 exec 2>&1
 exec \

docker/main/rootfs/usr/local/nginx/conf/nginx.conf

@@ -75,10 +75,7 @@ http {
         vod_hls_mpegts_interleave_frames on;
 
         # file handle caching / aio
-        open_file_cache max=1000 inactive=5m;
-        open_file_cache_valid 2m;
-        open_file_cache_min_uses 1;
-        open_file_cache_errors on;
+        include open_file_cache.conf;
         aio on;
 
         # file upload size

docker/main/rootfs/usr/local/nginx/conf/open_file_cache.conf

@@ -0,0 +1,4 @@
+open_file_cache max=1000 inactive=5m;
+open_file_cache_valid 2m;
+open_file_cache_min_uses 1;
+open_file_cache_errors on;