Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -45,7 +45,11 @@ build:
   stage: build
   image: docker:latest
   services:
-    - docker:dind
+    - name: docker:dind
+      alias: docker
+  variables:
+    DOCKER_HOST: tcp://docker:2375/
+    DOCKER_TLS_CERTDIR: ""     # Disable TLS since we’re in a trusted CI env
   before_script:
     - echo "Building Docker image for commit:" ${CI_COMMIT_SHORT_SHA}
     - echo "Logging in to Docker registry..."
@@ -60,3 +64,5 @@ build:
     - docker push "${IMAGE_NAME}:${IMAGE_TAG}"
   after_script:
     - echo "Docker image pushed successfully!"
+  tags:
+    - docker
\ No newline at end of file