Added GitLab CI/CD config

Author: Philipp Potisk

.gitlab-ci.yml

@@ -0,0 +1,23 @@
+image: registry.gitlab.com/danubetech/devops/docker-maven-danubetech:latest
+
+stages:
+  - build
+  - test
+
+variables:
+  MAVEN_OPTS: "-Dmaven.repo.local=.m2/repository"
+
+cache:
+  paths:
+    - .m2/repository/
+    - target/
+
+build:
+  stage: build
+  script:
+    - mvn $MAVEN_CLI_OPTS compile
+
+test:
+  stage: test
+  script:
+    - mvn $MAVEN_CLI_OPTS test