From a211b239a3c521f08dd5b9e654b2144ebc8db53d Mon Sep 17 00:00:00 2001
From: Erik Currin <erik.currin@elastic.co>
Date: Fri, 18 Sep 2026 15:56:30 -0400
Subject: [PATCH] fix(ci): enable BuildKit for Docker builds (#505)
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## Summary

`COPY --chmod=...` in `Dockerfile.wolfi` requires BuildKit, but
`build-docker.sh` was calling plain `docker build` without enabling it,
causing every build to fail at step 15:

```
the --chmod option requires BuildKit. Refer to https://docs.docker.com/go/buildkit/
```

## Fix

Prefix the `docker build` call with `DOCKER_BUILDKIT=1`.

## Verification

Confirmed working in build
[#80](https://buildkite.com/elastic/crawler-docker-build-publish/builds/80)
by setting the env var manually at trigger time.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 .buildkite/publish/build-docker.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.buildkite/publish/build-docker.sh b/.buildkite/publish/build-docker.sh
index f1d41534..45cc9440 100755
--- a/.buildkite/publish/build-docker.sh
+++ b/.buildkite/publish/build-docker.sh
@@ -24,7 +24,7 @@ pushd "$PROJECT_ROOT"
 
 # set our complete tag name and build the image
 TAG_NAME="$BASE_TAG_NAME:${VERSION}-${ARCHITECTURE}"
-docker build -f "$DOCKERFILE_PATH" -t "$TAG_NAME" .
+DOCKER_BUILDKIT=1 docker build -f "$DOCKERFILE_PATH" -t "$TAG_NAME" .
 
 # save the image to an archive file
 OUTPUT_PATH="$PROJECT_ROOT/.artifacts"