Image build is optimized.

.gitlab-ci.yml

@@ -43,7 +43,7 @@ build:
     - docker volume prune -f
   script:
 #    - docker build --cache-from=asyst-nlp-grader --no-cache --progress=plain -t asyst-nlp-grader -f flask_ml_api/Dockerfile .
-    - docker buildx build --cache-from=type=registry,ref=22baar1mst/asyst-nlp-grader --no-cache --progress=plain -t 22baar1mst/asyst-nlp-grader:latest -f flask_ml_api/Dockerfile --push .
+#    - docker buildx build --cache-from=type=registry,ref=22baar1mst/asyst-nlp-grader --no-cache --progress=plain -t 22baar1mst/asyst-nlp-grader:latest -f flask_ml_api/Dockerfile --push .
     - docker push 22baar1mst/asyst-nlp-grader:latest
   cache:
     key: build-cache