display commit if node not aligned with release tag

.github/workflows/container.yml

@@ -14,6 +14,14 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Resolve git metadata
+        id: gitmeta
+        run: |
+          echo "sha=$(git rev-parse --short=7 HEAD)" >> "$GITHUB_OUTPUT"
+          echo "tag=$(git describe --tags --exact-match HEAD 2>/dev/null || true)" >> "$GITHUB_OUTPUT"
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
@@ -30,6 +38,9 @@ jobs:
         with:
           context: .
           push: true
+          build-args: |
+            GIT_COMMIT=${{ steps.gitmeta.outputs.sha }}
+            GIT_TAG=${{ steps.gitmeta.outputs.tag }}
           tags: |
             ghcr.io/routstr/proxy:latest
             ghcr.io/routstr/core:latest