Dockerfile change

Signed-off-by: Govind Kamat <govkamat@amazon.com>

.github/workflows/docker-build.yml

@@ -34,6 +34,6 @@ jobs:
             docker buildx version
             tag=osb/osb-`echo ${{ matrix.platform }} | tr '/' '-'`
             set -x
-            docker buildx build --platform ${{ matrix.platform }} --build-arg VERSION=`cat version.txt` --build-arg BUILD_DATE=`date -u +%Y-%m-%dT%H:%M:%SZ` -f docker/Dockerfile -t "$tag" -o type=docker .
+            docker buildx build --platform ${{ matrix.platform }} --build-arg GITHUB_SHA="$GITHUB_SHA" --build-arg VERSION=`cat version.txt` --build-arg BUILD_DATE=`date -u +%Y-%m-%dT%H:%M:%SZ` -f docker/Dockerfile -t "$tag" -o type=docker .
             set +x
             docker images | grep "$tag"

docker/Dockerfile

@@ -14,7 +14,8 @@ RUN apt-get -y update && \
 RUN groupadd --gid 1000 opensearch-benchmark && \
     useradd -d /opensearch-benchmark -m -k /dev/null -g 1000 -N -u 1000 -l -s /bin/bash benchmark
 
-RUN set -e; git clone https://github.com/opensearch-project/opensearch-benchmark; cd opensearch-benchmark; make install; cd ..; rm -rf opensearch-benchmark
+ARG GITHUB_SHA
+RUN set -e; git clone https://github.com/opensearch-project/opensearch-benchmark; cd opensearch-benchmark; git checkout "$GITHUB_SHA"; make install; cd ..; rm -rf opensearch-benchmark
 
 RUN mkdir -p /opensearch-benchmark/.benchmark && \
     chown -R 1000:0 /opensearch-benchmark/.benchmark