Fix Docker image build metadata

.github/workflows/pipeline.yml

@@ -130,6 +130,10 @@ jobs:
           platforms: linux/amd64
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.service_ref.outputs.image_ref }}
+          build-args: |
+            BUILD_COMMIT=${{ github.sha }}
+            BUILD_DATE=${{ github.event.head_commit.timestamp || github.event.repository.pushed_at }}
+            BUILD_VERSION=v1.0-beta2
 
       - name: Write image ref artifact
         run: |

Dockerfile

@@ -1,6 +1,10 @@
 # Stage 1 - build the bridge binary
 FROM golang:1.25.1 AS builder
 
+ARG BUILD_COMMIT=unknown
+ARG BUILD_DATE=unknown
+ARG BUILD_VERSION=v1.0-beta2
+
 WORKDIR /src
 
 COPY go.mod go.sum ./
@@ -9,10 +13,8 @@ RUN go mod download
 COPY . .
 
 RUN set -euo pipefail; \
-    build_commit="$(git rev-parse --short HEAD)"; \
-    build_date="$(git log -1 --format=%cI)"; \
     CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
-      -ldflags="-s -w -X main.buildCommit=${build_commit} -X main.buildVersion=v1.0-beta2 -X main.buildDate=${build_date}" \
+      -ldflags="-s -w -X main.buildCommit=${BUILD_COMMIT} -X main.buildVersion=${BUILD_VERSION} -X main.buildDate=${BUILD_DATE}" \
       -o /out/xworkmate-bridge .
 
 # Stage 2 - minimal runtime image