disable entrypoint

Jenkinsfile

@@ -40,7 +40,7 @@ pipeline {
         echo "Building ${DOCKER_REGISTRY}/${DOCKER_IMAGE}:${repo}-${BUILD_NUMBER}."
         sh "docker build --build-arg repo=${repo} --no-cache -t ${DOCKER_REGISTRY}/${DOCKER_IMAGE}:${repo}-${BUILD_NUMBER} ."
         script {
-           NEWTAG = sh script: "docker run --rm ${DOCKER_REGISTRY}/${DOCKER_IMAGE}:${repo}-${BUILD_NUMBER} rpm -q --qf %{VERSION}-%{RELEASE} ${PACKAGE_NAME} 2> /dev/null", returnStdout: true
+           NEWTAG = sh script: "docker run --rm --entrypoint="" ${DOCKER_REGISTRY}/${DOCKER_IMAGE}:${repo}-${BUILD_NUMBER} rpm -q --qf %{VERSION}-%{RELEASE} ${PACKAGE_NAME} 2> /dev/null", returnStdout: true
            NEWTAG = repo + "-" + NEWTAG + "_" + BUILD_NUMBER
            echo "NEWTAG is $NEWTAG"
         }