Image build is optimized.

.gitlab-ci.yml

@@ -21,6 +21,12 @@ variables:
   DOCKER_OPTS: "--data-root=/mnt/volume/docker-data"
   DOCKER_MEMORY: "4g"
   DOCKER_CPUS: "2"
+#  DOCKER_HUB_USERNAME: "22baar1mst@hft-stuttgart.de"
+#  DOCKER_HUB_PASSWORD: "" # is set at https://transfer.hft-stuttgart.de/gitlab/ulrike.pado/asyst-moodle-plugin/-/settings/ci_cd
+#  DOCKER_REPO: "22baar1mst/asyst-nlp-grader"
+
+before_script:
+  - docker login -u $DOCKER_USER -p $DOCKER_HUB_PASSWORD
 
 build:
   stage: build
@@ -28,53 +34,20 @@ build:
   services:
     - name: docker:dind
       command: ["--tls=false", "--storage-driver=overlay2", "--mtu=1500", "--data-root=/mnt/volume"]
-  before_script:
-    - mkdir -p /mnt/volume
-    - mount /dev/vdb /mnt/volume || echo "Failed to mount /dev/vdb"
-    - export DOCKER_TMPDIR=/mnt/volume
-    - docker system prune -a -f --volumes || true
-    - docker container prune -f || true
-    - docker network prune -f || true
-    - docker image prune -a -f || true
-    - df -h
-    - free -h
-    - top -b -n 1
-  after_script:
-    - df -h
-    - free -h
-    - top -b -n 1
-    - docker system prune -a -f
-    - docker volume prune -f
-    - docker container prune -f
-    - docker network prune -f
-    - docker image prune -a -f
   script:
-    - docker build --cache-from=flask-backend-full --no-cache --progress=plain -t flask-backend-full -f flask_ml_api/Dockerfile .
-    - df -h
-    - free -h
-    - top -b -n 1
-    - docker save flask-backend-full -o /mnt/volume/flask-backend-full.tar
-  artifacts:
-    paths:
-      - /mnt/volume/flask-backend-full.tar
-  cache:
-    key: build-cache
-    paths:
-      - /mnt/volume
-  timeout: 2h
+    - docker build --cache-from=$DOCKER_REPO --no-cache --progress=plain -t $DOCKER_REPO -f flask_ml_api/Dockerfile .
+    - docker push $DOCKER_REPO
+  only:
+    - master
 
 deploy:
   stage: deploy
-  dependencies:
-    - build
   image: docker:dind
   services:
     - name: docker:dind
       command: ["--tls=false", "--storage-driver=overlay2", "--mtu=1500", "--data-root=/mnt/volume"]
-  before_script:
-    - df -h
-    - free -h
-    - top -b -n 1
-    - docker load -i /mnt/volume/flask-backend-full.tar
   script:
-    - docker run -d flask-backend-full
+    - docker pull $DOCKER_REPO
+    - docker run -d $DOCKER_REPO
+  only:
+    - master
\ No newline at end of file