Merge branch 'sonarqube/gitlabCI' into 'master'

feat: [none] add git-ci.yml

See merge request rays/pcloud-book!1673

.gitlab-ci.yml

+stages:
+  - sonarqube_stage
+
+sonarqube_master_job:
+  stage: sonarqube_stage
+  only:
+    - master
+  script:
+    - git pull origin master
+    - echo $CI_PROJECT_PATH_SLUG
+    - echo $CI_PROJECT_ID-$CI_JOB_ID
+    - mvn --batch-mode verify sonar:sonar
+      -Dsonar.host.url=http://192.168.92.120:9000/
+      -Dsonar.login=admin
+      -Dsonar.password=admin
+      -Dsonar.projectKey=$CI_PROJECT_PATH_SLUG
+      -Dsonar.projectName=$CI_PROJECT_PATH_SLUG
+      -Dsonar.sourceEncoding=UTF-8
+      -Dsonar.projectVersion=$CI_PROJECT_ID-$CI_JOB_ID
+      -Dsonar.ce.workerCount=1
+      -Dsonar.language=java
+      -Dsonar.forceAnalysis=true
+      -Dsonar.java.binaries=target/classes
+      -Dsonar.sources=src/main/java
+      -Dprod
+      -Dreversion=3.1.1-RELEASE
+      
+# code review
+sonarqube_preview_feature_job:
+  stage: sonarqube_stage
+  only:
+    - /^feature\/*/
+    - /^fixbug\/*/
+  script:
+    - git checkout origin/master
+    - git pull origin master
+    - git merge $CI_COMMIT_SHA --no-commit --no-ff
+    - mvn --batch-mode verify sonar:sonar 
+        -Dsonar.host.url=http://192.168.92.120:9000/ 
+        -Dsonar.login=admin 
+        -Dsonar.password=admin 
+        -Dsonar.analysis.mode=preview 
+        -Dsonar.gitlab.commit_sha=$CI_COMMIT_SHA 
+        -Dsonar.gitlab.ref_name=$CI_COMMIT_REF_NAME 
+        -Dsonar.gitlab.project_id=$CI_PROJECT_ID
+        -Dprod
+        -Dreversion=3.1.1-RELEASE