Tente de construire et d'utiliser une image Docker en CI.

.gitlab-ci.yml

 default:
-  tags: [docker]
-  image: node:14
   retry: 2
   interruptible: true
 
 stages:
   - test
+  - build
   - deploy
 
 lint:
   stage: test
+  tags: [docker]
+  image: node:12-buster-slim
   variables:
     NPM_CONFIG_CACHE: "$CI_PROJECT_DIR/.npm"
   before_script:
@@ -18,23 +19,30 @@ lint:
     - npm install
   script:
     - npm run lint
-  artifacts:
-    name: node_modules
-    expire_in: 1 day
-    paths:
-      - node_modules/
   cache:
-    key: "$CI_COMMIT_REF_NAME-$CI_JOB_NAME"
+    key: "$CI_COMMIT_REF_SLUG-$CI_JOB_NAME"
     paths:
       - "$NPM_CONFIG_CACHE"
 
+docker:
+  stage: build
+  tags: [dind]
+  variables:
+    - IMAGE: "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG"
+  script:
+    - docker build --tag "$IMAGE" .
+    - docker run --rm "$IMAGE" build
+    - docker push "$IMAGE"
+
 pages:
   stage: deploy
-  needs: [lint]
+  tags: [dind]
   rules:
     - if: $CI_COMMIT_BRANCH == "master"
+  variables:
+    - IMAGE: "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG"
   script:
-    - npm run build
+    - docker run --rm -v "$PWD/src:/src/ro" -v "$PWD/public:/public" "$IMAGE" build
   artifacts:
     name: pages
     paths: