Image build is optimized.

.gitlab-ci.yml

@@ -31,8 +31,6 @@ build:
     - export DOCKER_TMPDIR=/mnt/volume
     - docker system prune -a -f --volumes || true
     - df -h
-  tmpfs:
-    - /var/lib/docker:rw,noexec,nosuid,size=20g
   script:
     - docker build --no-cache --progress=plain -t flask-backend-full -f flask_ml_api/Dockerfile .
   cache:
@@ -47,4 +45,3 @@ deploy:
     - build
   script:
     - docker run -d flask-backend-full
-