Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -0,0 +1,21 @@
+image: gradle:alpine
+
+variables:
+  GRADLE_OPTS: "-Dorg.gradle.daemon=false"
+
+before_script:
+  - export GRADLE_USER_HOME=`pwd`/.gradle
+
+build_test:
+  stage: deploy
+  script:
+    - gradle --build-cache assemble
+    - cp build/libs/* ./
+    - rm *-dev.jar
+    - mv *.jar latest.jar
+  artifacts:
+    paths:
+      - build/libs
+      - latest.jar
+  only:
+    - master