New pipeline for fetching Mariadb from Docker hub and pushing it to our registry.

.gitlab-ci.yml

+variables:
+  DUMMY_VERSION: "uib-11"
+
+image: docker
+
+stages:          # List of stages for jobs, and their order of execution
+  - import
+
+.docker_login: &docker_login
+    - echo -n $CI_JOB_TOKEN | docker login -u gitlab-ci-token --password-stdin $CI_REGISTRY
+
+
+.import:
+  script:
+    - *docker_login
+    - docker pull $image_name:$image_tag
+    - docker tag $image_name:$image_tag $CI_REGISTRY_IMAGE/$image_name:$image_tag
+    - docker tag $image_name:$image_tag $CI_REGISTRY_IMAGE/$image_name:${CI_PIPELINE_ID}
+    - docker tag $image_name:$image_tag $CI_REGISTRY_IMAGE/$image_name:${DUMMY_VERSION}
+    - docker tag $image_name:$image_tag $CI_REGISTRY_IMAGE/$image_name:latest
+    - docker push $CI_REGISTRY_IMAGE/$image_name:$image_tag
+    - docker push $CI_REGISTRY_IMAGE/$image_name:${CI_PIPELINE_ID}
+    - docker push $CI_REGISTRY_IMAGE/$image_name:${DUMMY_VERSION}
+    - docker push $CI_REGISTRY_IMAGE/$image_name:latest
+
+import:
+  stage: import
+  variables:
+    image_name: mariadb
+    image_tag: ubi-11
+  extends:
+    - .import
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "schedule"'
+