enable device without intel video card

docker-compose.gen

@@ -22,7 +22,10 @@ SMB_UID_ADMIN=$(id -u ${SMB_UNAME_ADMIN})
 
 # media(jellyfin) service
 MEDIA_UGID=$(stat -c '%u:%g' "${MEDIA_PATH}")
-MEDIA_GID_RENDER=$(stat -c '%g' /dev/dri/renderD128)
+_VIDEO_DEV='/dev/dri/renderD128'
+if [ -c "${_VIDEO_DEV}" ]; then
+    MEDIA_GID_RENDER=$(stat -c '%g' "${_VIDEO_DEV}")
+fi
 
 cat <<-EOF >docker-compose.yml
 version: '3'
@@ -113,8 +116,10 @@ services:
       args:
         - JELLYFIN_VERSION=${ARGS_JELLYFIN_VERSION}
     user: ${MEDIA_UGID}
-    group_add:
+    group_add:$( \
-      - "$MEDIA_GID_RENDER"$( \
+    if [ -n "${MEDIA_GID_RENDER}" ]; then
+        echo "      - ${MEDIA_GID_RENDER}"
+    fi)$( \
     for GNAME in "${MEDIA_GNAME_EXTRA[@]}"; do
         echo
         echo "      - \"$(gid_of $GNAME)\""