Update Dockerfile with Maven version and install Git.

.gitlab-ci.yml

@@ -3,7 +3,7 @@ before_script:
 
 build-master:
   script:
-    - docker build --pull -t $CI_REGISTRY_IMAGE/maven ./docker
+    - docker build --pull -t $CI_REGISTRY_IMAGE/maven .
     - docker push $CI_REGISTRY_IMAGE/maven
   only:
     - master

Dockerfile

-FROM ubuntu:16.04
+FROM maven:3-jdk-11-slim
+
+
 
 LABEL com.example.vendor="PARAGON Executive Service GmbH" \
       maintainer="juergen@paragon-es.de" \
       version="1.0.0" \
       description="Base Ansible image to be built upon by https://gitlab.lakedrops.com/ansible-playbooks/general"
 
-RUN echo "===> Adding Ansible's prerequisites..."
+RUN echo "===> Adding GIT..." && \
+    apt-get update -y && \
+    apt-get install -y -q git && \
+    echo "Completed"
+
+