From 82c8e73a9082f30a552e7cd7b7766924f2a74c8c Mon Sep 17 00:00:00 2001
From: zstadler <zeev.stadler@gmail.com>
Date: Thu, 16 Mar 2023 11:45:13 +0200
Subject: [PATCH] Launch Xvfb only if needed

Resolve #794
---
 docker-entrypoint.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 7c0b1e3..ba08bd2 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -2,7 +2,8 @@
 if ! which -- "${1}"; then
   # first arg is not an executable
   export DISPLAY=:99
-  Xvfb "${DISPLAY}" -nolisten unix &
+  # Launch Xvfb if needed
+  xdpyinfo --display "${DISPLAY}" >/dev/null 2>&1 || Xvfb "${DISPLAY}" -nolisten unix &
   exec node /usr/src/app/ "$@"
 fi