Image build is optimized.

.gitlab-ci.yml

@@ -11,8 +11,8 @@
 # for the default branch and all other (MR) branches.
 
 stages:
-  - build
-  - deploy
+- build
+- deploy
 
 variables:
   DOCKER_DRIVER: overlay2
@@ -27,17 +27,21 @@ build:
   image: docker:dind
   services:
     - name: docker:dind
-      command: ["--tls=false", "--storage-driver=overlay2", "--mtu=1500", "--data-root=/mnt/volume"]
+      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
     - df -h
   after_script:
     - df -h
     - docker system prune -a -f
     - docker volume prune -f
+    - docker container prune -f
+    - docker network prune -f
   script:
     - docker build --cache-from=flask-backend-full --no-cache --progress=plain -t flask-backend-full -f flask_ml_api/Dockerfile .
     - df -h
@@ -58,7 +62,7 @@ deploy:
   image: docker:dind
   services:
     - name: docker:dind
-      command: ["--tls=false", "--storage-driver=overlay2", "--mtu=1500", "--data-root=/mnt/volume"]
+      command: [ "--tls=false", "--storage-driver=overlay2", "--mtu=1500", "--data-root=/mnt/volume" ]
   before_script:
     - df -h
     - docker load -i /mnt/volume/flask-backend-full.tar