Merge branch 'master' into 'release'

Master

See merge request !9

.gitlab-ci.yml

@@ -168,6 +168,7 @@ docker:
     # build docker image and tag with version
     - docker login harbor.bjoernbartels.earth:8013 -u "${CI_HARBOR_USERNAME}" -p "${CI_HARBOR_PASSWORD}"
     - docker build --no-cache --build-arg ARTIFACT_DIR=${BUILD_TARGET} -t harbor.bjoernbartels.earth:8013/${PROJECTNAMESPACE}/${PROJECTNAME}:${BUILD_LABEL} .
+    - if [[ ! -z "${CI_COMMIT_TAG}" ]] ; then docker build --no-cache --build-arg ARTIFACT_DIR=${BUILD_TARGET} -t harbor.bjoernbartels.earth:8013/${PROJECTNAMESPACE}/${PROJECTNAME}:latest . ; fi
     - docker push harbor.bjoernbartels.earth:8013/${PROJECTNAMESPACE}/${PROJECTNAME}:${BUILD_LABEL}