diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
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+++ b/.gitlab-ci.yml
@@ -0,0 +1,98 @@
+variables:
+  # This will suppress any download for dependencies and plugins or upload messages which would clutter the console log.
+  # `showDateTime` will show the passed time in milliseconds. You need to specify `--batch-mode` to make this work.
+  MAVEN_OPTS: "-Dhttps.protocols=TLSv1.2 -Dmaven.repo.local=$CI_PROJECT_DIR/.m2/repository -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=WARN -Dorg.slf4j.simpleLogger.showDateTime=true -Djava.awt.headless=true"
+  # As of Maven 3.3.0 instead of this you may define these options in `.mvn/maven.config` so the same config is used
+  # when running from the command line.
+  #MAVEN_CLI_OPTS: "--batch-mode --errors --fail-at-end --show-version -DinstallAtEnd=true -DdeployAtEnd=true"
+  MAVEN_CLI_OPTS: "--batch-mode --errors --fail-at-end --show-version"
+  # Nexus Deployment settings, please use env vars in Settings -> CI/CD -> Variables.
+  MAVEN_SETTINGS_PATH: ".m2/settings.xml"
+  MAVEN_DEPLOY_OPTS: "--settings=$MAVEN_SETTINGS_PATH"
+  # File for storing the POM project.version
+  VARIABLES_FILE: ./variables.txt
+
+###################
+###  TEMPLATES  ###
+###################
+.webapp: &webapp
+  image: alpine:3.14
+  stage: deploy_deb
+  script:
+    - source $VARIABLES_FILE
+    - 'apk add --no-cache bash'
+    - 'apk add --no-cache curl'
+    - export PLOC="$(ls ./${PPATH}/*.deb)"
+    - DEB_NAME=$PNAME-$PVERSION.deb
+    - echo $DEB_NAME
+    - echo $PKEY
+    - echo $PLOC
+    - 'if [[ $PVERSION =~ .*${PKEY}$ ]]; then'
+    - echo "---A ${PKEY} BUILD IS BEING PERFORMED---"
+    - 'curl -u ${APTLY_USER}:${APTLY_PASSWORD} -X POST --header "Content-Type:multipart/form-data" -F file=@${PLOC} ${APTLY_URL}/files/${DEB_NAME}'
+    - 'curl -u ${APTLY_USER}:${APTLY_PASSWORD} -X POST ${APTLY_URL}/repos/${APTLY_TARGET}/file/${DEB_NAME}'
+    - 'curl -u ${APTLY_USER}:${APTLY_PASSWORD} -X PUT -H "Content-Type: application/json" --data "{}" ${APTLY_URL}/publish/:./indy'
+    - fi
+
+stages:
+  - build_version
+  - deploy_java
+  - deploy_deb
+
+# Cache downloaded dependencies and plugins between builds.
+# To keep cache across branches add 'key: "$CI_JOB_NAME"'
+cache:
+  key: $CI_JOB_NAME
+  paths:
+    - .m2/repository
+
+# Get the project version from main POM file and store it to artifact.
+get_version:
+  image: maven:3.8.3-jdk-8
+  only:
+    - develop
+#    - main
+  stage: build_version
+  script:
+    - 'PVERSION=$(mvn org.apache.maven.plugins:maven-help-plugin:3.1.1:evaluate -Dexpression=project.version -q -DforceStdout)'
+    - echo "export PVERSION=$PVERSION" > $VARIABLES_FILE
+    - echo "Project version from main pom file is $PVERSION"
+  artifacts:
+    name: POM_VERSION
+    paths:
+      - $VARIABLES_FILE
+
+# Build and deploy all the JARs to GWDG Nexus, and build all the DEBs and store DEBs to artifacts.
+build_and_deploy:
+  image: maven:3.8.3-jdk-8
+  only:
+    - develop
+#    - main
+  stage: deploy_java
+  script:
+    - 'mvn $MAVEN_OPTS $MAVEN_CLI_OPTS $MAVEN_DEPLOY_OPTS -U clean deploy -Pdhrep.deb'
+  artifacts:
+    name: WEBAPP_DEB_PACKAGES
+    paths:
+      - ./OAIPMH-webapp/target/*.deb
+
+# Deploy DEB files to APTLY repository.
+deploy_oaipmh-webapp_dev:
+  only:
+    - develop
+  variables:
+    PNAME: 'oaipmh-webapp'
+    PPATH: '${PNAME}/target'
+    PKEY: 'SNAPSHOT'
+    APTLY_TARGET: 'indy-snapshots'
+  <<: *webapp
+
+deploy_oaipmh-webapp_prd:
+  only:
+#    - main
+  variables:
+    PNAME: 'oaipmh-webapp'
+    PPATH: '${PNAME}/target'
+    PKEY: 'RELEASE'
+    APTLY_TARGET: 'indy-releases'
+  <<: *webapp