diff --git a/Jenkinsfile b/Jenkinsfile
new file mode 100644
index 00000000..5c1722d6
--- /dev/null
+++ b/Jenkinsfile
@@ -0,0 +1,52 @@
+pipeline {
+    agent {
+        dockerfile {
+            filename 'etc/jenkinsAgent.Dockerfile'
+            // additionalBuildArgs  ...
+            args '--network=bridge --user root -v $PWD:$PWD -v /var/run/docker.sock:/var/run/docker.sock --group-add 984'
+            reuseNode true
+       }
+    }
+
+    environment {
+        DOCKER_HOST = 'unix:///var/run/docker.sock'
+        HSADMINNG_POSTGRES_ADMIN_USERNAME = 'admin'
+        HSADMINNG_POSTGRES_RESTRICTED_USERNAME = 'restricted'
+        HSADMINNG_MIGRATION_DATA_PATH = 'migration'
+    }
+
+    triggers {
+        pollSCM('H/1 * * * *')
+    }
+
+    stages {
+        stage('Checkout') {
+            steps {
+                checkout scm
+            }
+        }
+
+        stage ('Compile & Test') {
+            steps {
+                sh './gradlew clean check --no-daemon -x pitest -x dependencyCheckAnalyze'
+            }
+        }
+    }
+
+    post {
+        always {
+            // archive test results
+            junit 'build/test-results/test/*.xml'
+
+            // archive the JaCoCo coverage report in XML and HTML format
+            jacoco(
+                execPattern: 'build/jacoco/*.exec',
+                classPattern: 'build/classes/java/main',
+                sourcePattern: 'src/main/java'
+            )
+
+            // cleanup workspace
+            cleanWs()
+        }
+    }
+}
diff --git a/etc/jenkinsAgent.Dockerfile b/etc/jenkinsAgent.Dockerfile
new file mode 100644
index 00000000..648e2f8e
--- /dev/null
+++ b/etc/jenkinsAgent.Dockerfile
@@ -0,0 +1,10 @@
+FROM eclipse-temurin:21-jdk
+RUN apt-get update && \
+    apt-get install -y bind9-utils && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+
+# RUN mkdir /opt/app
+# COPY japp.jar /opt
+# CMD ["java", "-jar", "/opt/app/japp.jar"]
diff --git a/src/main/java/net/hostsharing/hsadminng/hs/office/relation/HsOfficeRelationRbacRepository.java b/src/main/java/net/hostsharing/hsadminng/hs/office/relation/HsOfficeRelationRbacRepository.java
index e5761a5c..96d4b8d5 100644
--- a/src/main/java/net/hostsharing/hsadminng/hs/office/relation/HsOfficeRelationRbacRepository.java
+++ b/src/main/java/net/hostsharing/hsadminng/hs/office/relation/HsOfficeRelationRbacRepository.java
@@ -28,10 +28,10 @@ public interface HsOfficeRelationRbacRepository extends Repository<HsOfficeRelat
      * @return a list of (accessible) relations which match all given criteria
      */
     default List<HsOfficeRelationRbacEntity> findRelationRelatedToPersonUuidRelationTypePersonAndContactData(
-            UUID personUuid,
-            HsOfficeRelationType relationType,
-            String personData,
-            String contactData) {
+            final UUID personUuid,
+            final HsOfficeRelationType relationType,
+            final String personData,
+            final String contactData) {
         return findRelationRelatedToPersonUuidRelationTypePersonAndContactDataImpl(
                 personUuid, toStringOrNull(relationType), toSqlLikeOperand(personData), toSqlLikeOperand(contactData));
     }
diff --git a/src/test/java/net/hostsharing/hsadminng/hs/hosting/asset/validators/HsDomainDnsSetupHostingAssetValidatorUnitTest.java b/src/test/java/net/hostsharing/hsadminng/hs/hosting/asset/validators/HsDomainDnsSetupHostingAssetValidatorUnitTest.java
index 41684c3b..607485bf 100644
--- a/src/test/java/net/hostsharing/hsadminng/hs/hosting/asset/validators/HsDomainDnsSetupHostingAssetValidatorUnitTest.java
+++ b/src/test/java/net/hostsharing/hsadminng/hs/hosting/asset/validators/HsDomainDnsSetupHostingAssetValidatorUnitTest.java
@@ -176,6 +176,7 @@ class HsDomainDnsSetupHostingAssetValidatorUnitTest {
         // given
         final var givenEntity = validEntityBuilder().build();
         final var validator = HostingAssetEntityValidatorRegistry.forType(givenEntity.getType());
+        Dns.fakeResultForDomain(givenEntity.getIdentifier(), Dns.Result.fromRecords());
 
         // when
         final var errors = validator.validateContext(givenEntity);
@@ -317,6 +318,7 @@ class HsDomainDnsSetupHostingAssetValidatorUnitTest {
                     ))
                 .build();
         final var validator = HostingAssetEntityValidatorRegistry.forType(givenEntity.getType());
+        Dns.fakeResultForDomain("example.org", Dns.Result.fromRecords());
 
         // when
         final var errors = validator.validateContext(givenEntity);
@@ -340,6 +342,7 @@ class HsDomainDnsSetupHostingAssetValidatorUnitTest {
                 ))
                 .build();
         final var validator = HostingAssetEntityValidatorRegistry.forType(givenEntity.getType());
+        Dns.fakeResultForDomain("example.org", Dns.Result.fromRecords());
 
         // when
         final var zonefileErrors = new ArrayList<String>();
diff --git a/src/test/resources/application.yml b/src/test/resources/application.yml
index 923c62e9..54141c3e 100644
--- a/src/test/resources/application.yml
+++ b/src/test/resources/application.yml
@@ -33,3 +33,11 @@ logging:
     level:
         liquibase: WARN
         net.ttddyy.dsproxy.listener: DEBUG # HOWTO: log meaningful SQL statements
+        # just for the case there are problems with Testcontainers/Docker integration
+        # org.testcontainers: DEBUG
+        # com.github.dockerjava: DEBUG
+
+testcontainers:
+    network:
+        mode: host
+