Update .gitlab-ci.yml

.gitlab-ci.yml

-build-job:
-  stage: build
-  tags:
-    - ci
-  script:
-    - echo "Hello, "
+image: gitlab/dind
+services:
+  - docker:dind
 
-test-job1:
-  stage: test
-  tags:
-    - ci
-  script:
-    - echo "This job tests something"
+variables:
+  DOCKER_DRIVER: overlay
+  SPRING_PROFILES_ACTIVE: gitlab-ci
+  USER_GITLAB: sanjaybsm
+  APP_NAME: springbootgitlab
+  REPO: springbootlabtest
 
-test-job2:
+stages:
+  - build
+  - test
+  - docker
+
+maven-build:
+  image: maven:3-jdk-8
+  stage: build
+  script: "mvn clean package -B"
+  artifacts:
+    paths:
+      - target/*.jar
+
+maven-test:
+  image: maven:3-jdk-8
   stage: test
-  tags:
-    - ci
-  script:
-    - echo "This job tests something, but takes more time than test-job1."
-    - echo "After the echo commands complete, it runs the sleep command for 20 seconds"
-    - echo "which simulates a test that runs 20 seconds longer than test-job1"
-    - sleep 20
+  script: "mvn test"
+  artifacts:
+    paths:
+      - target/*.jar
 
-deploy-prod:
-  stage: deploy
-  tags:
-    - ci
+docker-build:
+  stage: docker
   script:
-    - echo "This job deploys something from the $CI_COMMIT_BRANCH branch."
+    - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
\ No newline at end of file
+    - docker build -t registry.gitlab.com/yournameingitlab/springbootlabtest .
+    - docker push registry.gitlab.com/yournameingitlab/springbootlabtest