Ajout de .gitlab-ci.yml

.gitlab-ci.yml

+variables:
+  GIT_SSL_NO_VERIFY: "true"
+  DOCKER_DRIVER: overlay2
+  DOCKER_TLS_CERTDIR: ""
+  MAVEN_OPTS: "-Dmaven.repo.local=./.m2/repository"
+  
+stages:
+  - build_java
+
+
+.machine: &runner-shell
+    tags:
+        - dev, shell
+
+.machine: &runner-docker
+    tags:
+        - dev, docker 
+
+
+build_api:dev:
+  image: maven:3.6.3-jdk-8
+  stage: build_java
+  only:
+    - master
+  <<: *runner-docker
+  script:
+    - mvn clean install -Pdev -DskipTests
+