From c6d0e533ea2d5ce97ed0197909f4309ce4ff4f84 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Wed, 7 Oct 2026 21:42:06 +0000
Subject: [PATCH] ci: serialize PR image validate builds on self-hosted runners

Co-authored-by: cynarAI <cynarAI@users.noreply.github.com>
---
 .github/workflows/publish-server-image.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/publish-server-image.yml b/.github/workflows/publish-server-image.yml
index deb4b49..b9f70be 100644
--- a/.github/workflows/publish-server-image.yml
+++ b/.github/workflows/publish-server-image.yml
@@ -57,6 +57,9 @@ jobs:
       contents: read
     strategy:
       fail-fast: false
+      # One build at a time: parallel matrix jobs on the same self-hosted runner
+      # contend for a single buildkitd and lose the daemon mid-build.
+      max-parallel: 1
       matrix:
         include:
           - name: app