From d3442c3616264904e9054ae08032913db61fafe5 Mon Sep 17 00:00:00 2001
From: Sebastiaan van Stijn <github@gone.nl>
Date: Mon, 26 Oct 2026 16:02:04 +0100
Subject: [PATCH] build: disable gRPC tracing to reduce binary size

Add the grpcnotrace build tag to exclude gRPC's tracing integration.
This reduces the size of buildctl by ~492 KiB (1.51%).

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
---
 Dockerfile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 55388bdfe..3af2da11a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -99,7 +99,7 @@ RUN --mount=target=. --mount=target=/root/.cache,type=cache \
   --mount=target=/go/pkg/mod,type=cache \
   --mount=source=/tmp/.ldflags,target=/tmp/.ldflags,from=buildkit-version <<EOT
   set -ex
-  xx-go build ${GOBUILDFLAGS} -ldflags "$(cat /tmp/.ldflags)" -o /usr/bin/buildctl ./cmd/buildctl
+  xx-go build ${GOBUILDFLAGS} -tags 'grpcnotrace' -ldflags "$(cat /tmp/.ldflags)" -o /usr/bin/buildctl ./cmd/buildctl
   xx-verify --static /usr/bin/buildctl
   if [ "$(xx-info os)" = "linux" ] && ! xx-info is-cross; then /usr/bin/buildctl --version; fi
 EOT
@@ -118,7 +118,7 @@ RUN --mount=target=. --mount=target=/root/.cache,type=cache \
   --mount=target=/go/pkg/mod,type=cache \
   --mount=source=/tmp/.ldflags,target=/tmp/.ldflags,from=buildkit-version <<EOT
   set -ex
-  xx-go build ${GOBUILDFLAGS} -gcflags="${GOGCFLAGS}" -ldflags "$(cat /tmp/.ldflags) -extldflags '-static'" -tags "osusergo netgo static_build seccomp ${BUILDKITD_TAGS}" -o /usr/bin/buildkitd ./cmd/buildkitd
+  xx-go build ${GOBUILDFLAGS} -gcflags="${GOGCFLAGS}" -ldflags "$(cat /tmp/.ldflags) -extldflags '-static'" -tags "osusergo netgo static_build seccomp grpcnotrace ${BUILDKITD_TAGS}" -o /usr/bin/buildkitd ./cmd/buildkitd
   xx-verify ${VERIFYFLAGS} /usr/bin/buildkitd
 
   # buildkitd --version can be flaky when running through emulation related to