Container build without Docker

With this MR we use Kaniko instead of Docker to build our images. This way, we can also build and push them without Docker-in-Docker.

.gitlab-ci.yml

@@ -324,7 +324,10 @@ deploy-theodolite-kaniko:
     - echo "{\"auths\":{\"${CR_HOST}\":{\"auth\":\"$(printf "%s:%s" "${CR_USER}" "${CR_PW}" | base64 | tr -d '\n')\"}}}" > /kaniko/.docker/config.json
   script:
     - DOCKER_TAG_NAME=$(echo $CI_COMMIT_REF_SLUG- | sed 's/^master-$//')
-    - /kaniko/executor --context $PWD --dockerfile $PWD/src/main/docker/Dockerfile.jvm -d $CR_HOST/$CR_ORG/theodolite:${DOCKER_TAG_NAME}latest-kaniko
+    #- DESTINATION="$DESTINATION -d $CR_HOST/$CR_ORG/theodolite:${DOCKER_TAG_NAME}latest-kaniko"
+    #- DESTINATION="$DESTINATION -d $CR_HOST/$CR_ORG/theodolite:$DOCKER_TAG_NAME$CI_COMMIT_SHORT_SHA-kaniko"
+    #- DESTINATION="$DESTINATION -d theodolite $CR_HOST/$CR_ORG/theodolite:$CI_COMMIT_TAG-kaniko"
+    - /kaniko/executor --context `pwd` --dockerfile src/main/docker/Dockerfile.jvm $DESTINATION
   rules:
     - if: "$CR_HOST && $CR_ORG && $CR_USER && $CR_PW && $CI_COMMIT_TAG"
       when: always