diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 82e6c7d..5f0fa0c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,13 +3,27 @@ stages:
   - test
   - publish
 
-services:
-  - docker:19.03.12-dind
+.img: &img
+  image: "domaindrivenarchitecture/ddadevops-dind:4.7.2"
+  services:
+    - docker:dind
+  before_script:
+  - export RELEASE_ARTIFACT_TOKEN=$MEISSA_REPO_BUERO_RW
+  - export IMAGE_DOCKERHUB_USER=$DOCKERHUB_USER
+  - export IMAGE_DOCKERHUB_PASSWORD=$DOCKERHUB_PASSWORD
+  - export IMAGE_TAG=$CI_COMMIT_TAG
 
-build:
-  image: domaindrivenarchitecture/devops-build:latest
-  stage: build
+.tag_only: &tag_only
   rules:
-    - if: '$CI_COMMIT_TAG != null'
+    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
+      when: never
+    - if: '$CI_COMMIT_TAG =~ /^[0-9]+\.[0-9]+\.[0-9]+$/'
+
+dda-backup-image-publish:
+  <<: *img
+  <<: *tag_only
+  stage: image
   script:
-    - cd infrastructure/docker && pyb image test publish
+    - cd infrastructure/docker && pyb image publish
+
+
diff --git a/build.py b/build.py
new file mode 100644
index 0000000..f696b00
--- /dev/null
+++ b/build.py
@@ -0,0 +1,74 @@
+from os import environ
+from subprocess import run
+from pybuilder.core import init, task
+from ddadevops import *
+
+default_task = "dev"
+
+name = "dda-backup"
+MODULE = "not-used"
+PROJECT_ROOT_PATH = "."
+
+
+@init
+def initialize(project):
+    input = {
+        "name": name,
+        "module": MODULE,
+        "stage": "notused",
+        "project_root_path": PROJECT_ROOT_PATH,
+        "build_types": [],
+        "mixin_types": ["RELEASE"],
+        "release_primary_build_file": "build.py",
+        "release_secondary_build_files": [            
+            "infrastructure/docker/build.py"
+        ],
+        "release_artifact_server_url": "https://repo.prod.meissa.de",
+        "release_organisation": "meissa",
+        "release_repository_name": name,
+        "release_artifacts": [],
+    }
+
+    build = ReleaseMixin(project, input)
+    build.initialize_build_dir()
+
+@task
+def patch(project):
+    build = get_devops_build(project)
+    build.update_release_type("PATCH")
+    release(project)
+
+
+@task
+def minor(project):
+    build = get_devops_build(project)
+    build.update_release_type("MINOR")
+    release(project)
+
+
+@task
+def major(project):
+    build = get_devops_build(project)
+    build.update_release_type("MAJOR")
+    release(project)
+
+
+@task
+def prepare(project):
+    build = get_devops_build(project)
+    build.prepare_release()
+
+
+@task
+def tag(project):
+    build = get_devops_build(project)
+    build.tag_bump_and_push_release()
+
+@task
+def publish_artifacts(project):
+    build = get_devops_build(project)
+    build.publish_artifacts()
+
+def release(project):
+    prepare(project)
+    tag(project)
diff --git a/development-version.sh b/development-version.sh
deleted file mode 100755
index 3b0c926..0000000
--- a/development-version.sh
+++ /dev/null
@@ -1 +0,0 @@
-VERSION=1.0.8 $@
diff --git a/doc/Releasing.md b/doc/Releasing.md
deleted file mode 100644
index ac96134..0000000
--- a/doc/Releasing.md
+++ /dev/null
@@ -1,11 +0,0 @@
-# stable release (should be done from master)
-
-1. Test if image build, image test and image publish is working:
-```
-cd infrastructure/docker && pyb image test publish
-```
-
-2. If image, test & publish is working, you can run the release script in the project root:
-```
-./release.sh
-```
\ No newline at end of file
diff --git a/infrastructure/docker/build.py b/infrastructure/docker/build.py
index 25d175c..7b21959 100644
--- a/infrastructure/docker/build.py
+++ b/infrastructure/docker/build.py
@@ -1,32 +1,35 @@
 from os import environ
+from datetime import datetime
 from pybuilder.core import task, init
 from ddadevops import *
 import logging
 
 name = 'dda-backup'
-MODULE = 'docker'
+MODULE = 'NOT_SET'
 PROJECT_ROOT_PATH = '../..'
+version = "1.0.9-SNAPSHOT"
 
 
-class MyBuild(DevopsDockerBuild):
-    pass
-
 @init
 def initialize(project):
-    project.build_depends_on('ddadevops>=0.12.4')
-    stage = 'notused'
-    dockerhub_user = environ.get('DOCKERHUB_USER')
-    if not dockerhub_user:
-        dockerhub_user = gopass_field_from_path('meissa/web/docker.com', 'login')
-    dockerhub_password = environ.get('DOCKERHUB_PASSWORD')
-    if not dockerhub_password:
-        dockerhub_password = gopass_password_from_path('meissa/web/docker.com')
-    tag = environ.get('CI_COMMIT_TAG')
-    if not tag:
-        tag = get_tag_from_latest_commit()
-    config = create_devops_docker_build_config(
-        stage, PROJECT_ROOT_PATH, MODULE, dockerhub_user, dockerhub_password, docker_publish_tag=tag)
-    build = MyBuild(project, config)
+    image_tag = version
+    if "dev" in image_tag:
+        image_tag += datetime.now().strftime("%Y-%m-%d-%H-%M-%S")
+
+    input = {
+        "name": name,
+        "module": MODULE,
+        "stage": "notused",
+        "project_root_path": PROJECT_ROOT_PATH,
+        "build_types": ["IMAGE"],
+        "mixin_types": [],
+        "image_naming": "NAME_ONLY",
+        "image_tag": f"{image_tag}",
+    }
+
+    project.build_depends_on("ddadevops>=4.7.0")
+
+    build = DevopsImageBuild(project, input)
     build.initialize_build_dir()
 
 
@@ -40,13 +43,9 @@ def drun(project):
     build = get_devops_build(project)
     build.drun()
 
+
 @task
 def publish(project):
     build = get_devops_build(project)
     build.dockerhub_login()
     build.dockerhub_publish()
-
-@task
-def test(project):
-    build = get_devops_build(project)
-    build.test()
diff --git a/release.sh b/release.sh
deleted file mode 100755
index ddcd39c..0000000
--- a/release.sh
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/bin/bash
-
-source development-version.sh
-
-if [ -z "$VERSION" ]
-then
-    echo "Error: VERSION needs to be set!"
-else
-    git pull
-    echo "Release version: $VERSION"
-    
-    while IFS='.' read -ra NUM; do
-        echo "VERSION=${NUM[0]}.${NUM[1]}.$((NUM[2]+1)) \$@" > development-version.sh
-    done <<< "$VERSION"
-    echo "Version bumped in file 'development-version.sh'"
-
-    git add -A && git commit -m "Version ${VERSION}"
-    git tag -a ${VERSION} -m "Release ${VERSION}"
-    git push --follow-tags
-fi