build docker image

.gitlab-ci.yml

@@ -11,6 +11,7 @@ variables:
   MAVEN_DEPLOY_OPTS: "--settings=$MAVEN_SETTINGS_PATH"
   # File for storing the POM project.version
   VARIABLES_FILE: ./variables.txt
+  CONTAINER_IMAGE: $CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:$CI_COMMIT_SHA
 
 ###################
 ###  TEMPLATES  ###
@@ -31,6 +32,10 @@ variables:
     - 'curl -u ${APTLY_USER}:${APTLY_PASSWORD} -X PUT -H "Content-Type: application/json" --data "{}" ${APTLY_URL}/publish/:./indy'
     - fi
 
+.kaniko-setup_template: &kaniko-setup
+  - mkdir -p /kaniko/.docker
+  - echo "{\"auths\":{\"$CI_REGISTRY\":{\"auth\":\"$(echo -n ${CI_REGISTRY_USER}:${CI_REGISTRY_PASSWORD} | base64 | tr -d '\n')\"}}}" > /kaniko/.docker/config.json
+
 stages:
   - build_version
   - deploy_java
@@ -79,6 +84,19 @@ build_and_deploy:
     name: WEBAPP_DEB_PACKAGES
     paths:
       - ./target/*.deb
+      
+build_container:
+  image:
+    name: gcr.io/kaniko-project/executor:debug
+    entrypoint: [""]
+  stage: build
+  before_script:
+    - *kaniko-setup
+  script:
+    - /kaniko/executor
+      --context $CI_PROJECT_DIR
+      --dockerfile $CI_PROJECT_DIR/Dockerfile
+      --destination $CONTAINER_IMAGE
 
 # Deploy DEB files to APTLY repository.
 # All four DEB files are deployed with SNAPSHOT version (branch: develop)!

Dockerfile

+FROM maven:3-jdk-8 as builder
+
+COPY . /build
+WORKDIR /build
+RUN mvn package -Dmaven.test.skip=true -P \!textgrid.deb
+
+
+FROM tomcat:8-jdk8-openjdk-slim-bullseye
+
+# latex for PDF generation (TODO: test if PDF generation is really working, otherwise safe that space)
+RUN apt-get update -y && apt-get upgrade -y && apt-get install --no-install-recommends -y \
+    #texlive-xetex \
+    texlive-latex-base \
+    texlive-latex-extra \
+    texlive-plain-generic \
+    # save some space
+    && rm -rf /var/lib/apt/lists/*
+
+COPY --from=builder /build/target/aggregator-*.war /usr/local/tomcat/webapps/aggregator.war
+