use github.sha

Signed-off-by: Alex Co <alex.tuan@mindvalley.com>

Author: onimsha

.github/workflows/gar-build-push-model-server-container-on-tag.yml

@@ -48,7 +48,7 @@ jobs:
         id: metadata
         with:
           images: |
-            us-docker.pkg.dev/${{ env.GarProjectID }}/${{ env.GarRepo }}/${{ env.GarImageName }}:${{ github.ref_name }}
+            us-docker.pkg.dev/${{ env.GarProjectID }}/${{ env.GarRepo }}/${{ env.GarImageName }}:${{ github.sha }}
 
       - name: Model Server Image Docker Build and Push
         uses: int128/kaniko-action@v1
@@ -63,7 +63,7 @@ jobs:
             --snapshot-mode=redo
             --cache-ttl=730h
           tags: |
-            us-docker.pkg.dev/${{ env.GarProjectID }}/${{ env.GarRepo }}/${{ env.GarImageName }}:${{ github.ref_name }}
+            us-docker.pkg.dev/${{ env.GarProjectID }}/${{ env.GarRepo }}/${{ env.GarImageName }}:${{ ggithub.sha }}
             us-docker.pkg.dev/${{ env.GarProjectID }}/${{ env.GarRepo }}/${{ env.GarImageName }}:latest
           build-args: |
-            DANSWER_VERSION=${{ github.ref_name }}
+            DANSWER_VERSION=${{ github.sha }}