diff --git a/jjb/pipeline/voltha/playground/voltha-scale-multi-stack.groovy b/jjb/pipeline/voltha/playground/voltha-scale-multi-stack.groovy
new file mode 100644
index 0000000..8420da0
--- /dev/null
+++ b/jjb/pipeline/voltha/playground/voltha-scale-multi-stack.groovy
@@ -0,0 +1,468 @@
+// Copyright 2019-2023 Open Networking Foundation (ONF) and the ONF Contributors//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// deploy VOLTHA using kind-voltha and performs a scale test
+
+// NOTE we are importing the library even if it's global so that it's
+// easier to change the keywords during a replay
+library identifier: 'cord-jenkins-libraries@master',
+    retriever: modernSCM([
+      $class: 'GitSCMSource',
+      remote: 'https://gerrit.opencord.org/ci-management.git'
+])
+
+pipeline {
+
+  /* no label, executor is determined by JJB */
+  agent {
+    label "${params.buildNode}"
+  }
+  options {
+      timeout(time: 120, unit: 'MINUTES')
+  }
+  environment {
+    JENKINS_NODE_COOKIE="dontKillMe" // do not kill processes after the build is done
+    KUBECONFIG="$HOME/.kube/config"
+    SSHPASS="karaf"
+    PATH="$PATH:$WORKSPACE/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"
+
+    LOG_FOLDER="$WORKSPACE/logs"
+  }
+
+  stages {
+    stage ('Cleanup') {
+      steps {
+        timeout(time: 11, unit: 'MINUTES') {
+          script {
+            def namespaces = ["infra"]
+            // FIXME we may have leftovers from more VOLTHA stacks (eg: run1 had 10 stacks, run2 had 2 stacks)
+            volthaStacks.toInteger().times {
+              namespaces += "voltha${it + 1}"
+            }
+            helmTeardown(namespaces)
+          }
+          sh returnStdout: false, script: '''
+            helm repo add onf https://charts.opencord.org
+            helm repo update
+
+            # remove all persistent volume claims
+            kubectl delete pvc --all-namespaces --all
+            PVCS=\$(kubectl get pvc --all-namespaces --no-headers | wc -l)
+            while [[ \$PVCS != 0 ]]; do
+              sleep 5
+              PVCS=\$(kubectl get pvc --all-namespaces --no-headers | wc -l)
+            done
+
+            # remove orphaned port-forward from different namespaces
+            ps aux | grep port-forw | grep -v grep | awk '{print $2}' | xargs --no-run-if-empty kill -9 || true
+
+            cd $WORKSPACE
+            rm -rf $WORKSPACE/*
+          '''
+        }
+      }
+    }
+    stage('Download Code') {
+      steps {
+        getVolthaCode([
+          branch: "${release}",
+          volthaSystemTestsChange: "${volthaSystemTestsChange}",
+          volthaHelmChartsChange: "${volthaHelmChartsChange}",
+        ])
+      }
+    }
+    stage('Deploy common infrastructure') {
+      // includes monitoring
+      steps {
+        sh '''
+        if [ ${withMonitoring} = true ] ; then
+          helm install -n infra nem-monitoring cord/nem-monitoring \
+          -f $HOME/voltha-scale/grafana.yaml \
+          --set prometheus.alertmanager.enabled=false,prometheus.pushgateway.enabled=false \
+          --set kpi_exporter.enabled=false,dashboards.xos=false,dashboards.onos=false,dashboards.aaa=false,dashboards.voltha=false
+        fi
+        '''
+      }
+    }
+    stage('Start logging') {
+      steps {
+        script {
+          startComponentsLogs([
+            appsToLog: [
+              'app.kubernetes.io/name=etcd',
+              'app.kubernetes.io/name=kafka',
+              'app=onos-classic',
+              'app=adapter-open-onu',
+              'app=adapter-open-olt',
+              'app=rw-core',
+              'app=ofagent',
+              'app=bbsim',
+              'app=radius',
+              'app=bbsim-sadis-server',
+              'app=onos-config-loader',
+            ]
+          ])
+        }
+      }
+    }
+    stage('Deploy VOLTHA infrastructure') {
+      steps {
+        timeout(time: 5, unit: 'MINUTES') {
+          script {
+            def localCharts = false
+            if (volthaHelmChartsChange != "" || release != "master") {
+              localCharts = true
+            }
+
+            def infraHelmFlags =
+                "--set global.log_level=${logLevel} " +
+                "--set radius.enabled=${withEapol} " +
+                "--set onos-classic.onosSshPort=30115 " +
+                "--set onos-classic.onosApiPort=30120 " +
+                params.extraHelmFlags
+
+            volthaInfraDeploy([
+              workflow: workflow,
+              infraNamespace: "infra",
+              extraHelmFlags: infraHelmFlags,
+              localCharts: localCharts,
+              onosReplica: onosReplicas,
+              atomixReplica: atomixReplicas,
+              kafkaReplica: kafkaReplicas,
+              etcdReplica: etcdReplicas,
+            ])
+          }
+        }
+      }
+    }
+    stage('Deploy Voltha') {
+      steps {
+        installVoltctl("${release}")
+        deploy_voltha_stacks(params.volthaStacks)
+      }
+    }
+    stage('Configuration') {
+      steps {
+        script {
+          sh returnStdout: false, script: """
+
+          # forward ETCD port
+          JENKINS_NODE_COOKIE="dontKillMe" _TAG=etcd-port-forward /bin/bash -c "while true; do kubectl -n infra port-forward --address 0.0.0.0 service/etcd 9999:2379; done 2>&1 " &
+
+          # forward ONOS ports
+          JENKINS_NODE_COOKIE="dontKillMe" _TAG=onos-port-forward /bin/bash -c "while true; do kubectl -n infra port-forward --address 0.0.0.0 service/voltha-infra-onos-classic-hs 8101:8101; done 2>&1 " &
+          JENKINS_NODE_COOKIE="dontKillMe" _TAG=onos-port-forward /bin/bash -c "while true; do kubectl -n infra port-forward --address 0.0.0.0 service/voltha-infra-onos-classic-hs 8181:8181; done 2>&1 " &
+
+          # make sure the the port-forward has started before moving forward
+          sleep 5
+          """
+          sh returnStdout: false, script: """
+          # TODO this needs to be repeated per stack
+          # kubectl exec \$(kubectl get pods | grep -E "bbsim[0-9]" | awk 'NR==1{print \$1}') -- bbsimctl log ${logLevel.toLowerCase()} false
+
+          #Setting link discovery
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.provider.lldp.impl.LldpLinkProvider enabled ${withLLDP}
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.net.flow.impl.FlowRuleManager allowExtraneousRules true
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.net.flow.impl.FlowRuleManager importExtraneousRules true
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.net.flowobjective.impl.InOrderFlowObjectiveManager accumulatorMaxBatchMillis 900
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.net.flowobjective.impl.InOrderFlowObjectiveManager accumulatorMaxIdleMillis 500
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.opencord.olt.impl.Olt provisionDelay 1000
+
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg log:set ${logLevel} org.onosproject
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg log:set ${logLevel} org.opencord
+
+          # Set Flows/Ports/Meters poll frequency
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.provider.of.flow.impl.OpenFlowRuleProvider flowPollFrequency ${onosStatInterval}
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.provider.of.device.impl.OpenFlowDeviceProvider portStatsPollFrequency ${onosStatInterval}
+
+          #SR is not needed in scale tests and not currently used by operators in production, can be disabled.
+          sshpass -e ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 app deactivate org.onosproject.segmentrouting
+
+
+          if [ ${withFlows} = false ]; then
+            sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 app deactivate org.opencord.olt
+          fi
+          """
+        }
+      }
+    }
+    stage('Setup Test') {
+      steps {
+        sh '''
+          mkdir -p $WORKSPACE/RobotLogs
+          cd $WORKSPACE/voltha-system-tests
+          make vst_venv
+        '''
+      }
+    }
+    stage('Run Test') {
+      steps {
+        test_voltha_stacks(params.volthaStacks)
+      }
+    }
+  }
+  post {
+    always {
+      stopComponentsLogs([compress: true])
+      // collect result, done in the "post" step so it's executed even in the
+      // event of a timeout in the tests
+      plot([
+        csvFileName: 'scale-test.csv',
+        csvSeries: [
+          [file: 'plots/plot-voltha-onus.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
+          [file: 'plots/plot-onos-ports.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
+          [file: 'plots/plot-voltha-flows-before.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
+          [file: 'plots/plot-voltha-openolt-flows-before.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
+          [file: 'plots/plot-onos-flows-before.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
+          [file: 'plots/plot-onos-auth.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
+          [file: 'plots/plot-voltha-flows-after.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
+          [file: 'plots/plot-voltha-openolt-flows-after.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
+          [file: 'plots/plot-onos-flows-after.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
+          [file: 'plots/plot-onos-dhcp.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
+        ],
+        group: 'Voltha-Scale-Numbers', numBuilds: '20', style: 'line', title: "Scale Test (Stacks: ${params.volthaStacks}, OLTs: ${olts}, PONs: ${pons}, ONUs: ${onus})", yaxis: 'Time (s)', useDescr: true
+      ])
+      step([$class: 'RobotPublisher',
+        disableArchiveOutput: false,
+        logFileName: 'RobotLogs/**/log.html',
+        otherFiles: '',
+        outputFileName: 'RobotLogs/**/output.xml',
+        outputPath: '.',
+        passThreshold: 100,
+        reportFileName: 'RobotLogs/**/report.html',
+        onlyCritical: true,
+        unstableThreshold: 0]);
+      // get all the logs from kubernetes PODs
+      sh returnStdout: false, script: '''
+
+        # store information on running charts
+        helm ls --all-namespaces > $LOG_FOLDER/helm-list.txt || true
+
+        # store information on the running pods
+        kubectl get pods --all-namespaces -o wide > $LOG_FOLDER/pods.txt || true
+        kubectl get pods --all-namespaces -o jsonpath="{range .items[*].status.containerStatuses[*]}{.image}{'\\n'}" | sort | uniq | tee $LOG_FOLDER/pod-images.txt || true
+        kubectl get pods --all-namespaces -o jsonpath="{range .items[*].status.containerStatuses[*]}{.imageID}{'\\n'}" | sort | uniq | tee $LOG_FOLDER/pod-imagesId.txt || true
+
+        # copy the ONOS logs directly from the container to avoid the color codes
+        printf '%s\n' $(kubectl get pods -n infra -l app=onos-classic -o=jsonpath="{.items[*]['metadata.name']}") | xargs --no-run-if-empty -I# bash -c "kubectl cp -n infra #:${karafHome}/data/log/karaf.log $LOG_FOLDER/#.log" || true
+
+      '''
+      // dump all the BBSim(s) ONU information
+      script {
+        for (int i = 1; i <= params.volthaStacks.toInteger(); i++) {
+          stack_ns="voltha"+i
+          sh """
+          mkdir -p \$LOG_FOLDER/${stack_ns}
+          BBSIM_IDS=\$(kubectl -n ${stack_ns} get pods | grep bbsim | grep -v server | awk '{print \$1}')
+          IDS=(\$BBSIM_IDS)
+
+          for bbsim in "\${IDS[@]}"
+          do
+            kubectl -n ${stack_ns} exec -t \$bbsim -- bbsimctl onu list > \$LOG_FOLDER/${stack_ns}/\$bbsim-device-list.txt || true
+            kubectl -n ${stack_ns} exec -t \$bbsim -- bbsimctl service list > \$LOG_FOLDER/${stack_ns}/\$bbsim-service-list.txt || true
+            kubectl -n ${stack_ns} exec -t \$bbsim -- bbsimctl olt resources GEM_PORT > \$LOG_FOLDER/${stack_ns}/\$bbsim-flows-gem-ports.txt || true
+            kubectl -n ${stack_ns} exec -t \$bbsim -- bbsimctl olt resources ALLOC_ID > \$LOG_FOLDER/${stack_ns}/\$bbsim-flows-alloc-ids.txt || true
+            kubectl -n ${stack_ns} exec -t \$bbsim -- bbsimctl olt pons > \$LOG_FOLDER/${stack_ns}/\$bbsim-pon-resources.txt || true
+          done
+          """
+        }
+      }
+      // get ONOS debug infos
+      sh '''
+
+        sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 apps -a -s > $LOG_FOLDER/onos-apps.txt || true
+        sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 nodes > $LOG_FOLDER/onos-nodes.txt || true
+        sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 masters > $LOG_FOLDER/onos-masters.txt || true
+        sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 roles > $LOG_FOLDER/onos-roles.txt || true
+
+        sshpass -e ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 30115 karaf@127.0.0.1 netcfg > $LOG_FOLDER/onos-netcfg.txt || true
+        sshpass -e ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 30115 karaf@127.0.0.1 cfg get > $LOG_FOLDER/onos-cfg.txt || true
+
+        sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 ports > $LOG_FOLDER/onos-ports-list.txt || true
+        sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 hosts > $LOG_FOLDER/onos-hosts-list.txt || true
+
+        if [ ${withFlows} = true ] ; then
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 volt-olts > $LOG_FOLDER/onos-olt-list.txt || true
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 flows -s > $LOG_FOLDER/onos-flows-list.txt || true
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 meters > $LOG_FOLDER/onos-meters-list.txt || true
+          sshpass -e ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 30115 karaf@127.0.0.1 volt-port-status > $LOG_FOLDER/onos-volt-port-status.txt || true
+        fi
+
+        if [ ${provisionSubscribers} = true ]; then
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 volt-programmed-subscribers > $LOG_FOLDER/onos-programmed-subscribers.txt || true
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 volt-programmed-meters > $LOG_FOLDER/onos-programmed-meters.txt || true
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 volt-bpmeter-mappings > $LOG_FOLDER/onos-bpmeter-mappings.txt || true
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 volt-failed-subscribers > $LOG_FOLDER/onos-failed-subscribers.txt || true
+        fi
+
+        if [ ${withEapol} = true ] ; then
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 aaa-users > $LOG_FOLDER/onos-aaa-users.txt || true
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 aaa-statistics > $LOG_FOLDER/onos-aaa-statistics.txt || true
+        fi
+
+        if [ ${withDhcp} = true ] ; then
+          sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 dhcpl2relay-allocations > $LOG_FOLDER/onos-dhcp-allocations.txt || true
+        fi
+      '''
+      // collect etcd metrics
+      sh '''
+        mkdir -p $WORKSPACE/etcd-metrics
+        curl -s -X GET -G http://10.90.0.101:31301/api/v1/query --data-urlencode 'query=etcd_debugging_mvcc_keys_total' | jq '.data' > $WORKSPACE/etcd-metrics/etcd-key-count.json || true
+        curl -s -X GET -G http://10.90.0.101:31301/api/v1/query --data-urlencode 'query=grpc_server_handled_total{grpc_service="etcdserverpb.KV"}' | jq '.data' > $WORKSPACE/etcd-metrics/etcd-rpc-count.json || true
+        curl -s -X GET -G http://10.90.0.101:31301/api/v1/query --data-urlencode 'query=etcd_debugging_mvcc_db_total_size_in_bytes' | jq '.data' > $WORKSPACE/etcd-metrics/etcd-db-size.json || true
+        curl -s -X GET -G http://10.90.0.101:31301/api/v1/query --data-urlencode 'query=etcd_disk_backend_commit_duration_seconds_sum' | jq '.data'  > $WORKSPACE/etcd-metrics/etcd-backend-write-time.json || true
+      '''
+      // get VOLTHA debug infos
+      script {
+        for (int i = 1; i <= params.volthaStacks.toInteger(); i++) {
+          stack_ns="voltha"+i
+          voltcfg="~/.volt/config-voltha"+i
+          try {
+            sh """
+
+            # _TAG=voltha-port-forward kubectl port-forward --address 0.0.0.0 -n voltha${i} svc/voltha${i}-voltha-api 55555:55555& > /dev/null 2>&1
+            _TAG="voltha-port-forward" bash -c "while true; do kubectl port-forward --address 0.0.0.0 -n voltha${i} svc/voltha${i}-voltha-api 55555:55555 > /dev/null 2>&1; done"&
+
+            voltctl -m 32MB device list -o json > $LOG_FOLDER/${stack_ns}/device-list.json || true
+            python -m json.tool $LOG_FOLDER/${stack_ns}/device-list.json > $LOG_FOLDER/${stack_ns}/voltha-devices-list.json || true
+            rm $LOG_FOLDER/${stack_ns}/device-list.json || true
+            voltctl -m 32MB device list > $LOG_FOLDER/${stack_ns}/voltha-devices-list.txt || true
+
+            DEVICE_LIST=
+            printf '%s\n' \$(voltctl -m 32MB device list | grep olt | awk '{print \$1}') | xargs --no-run-if-empty -I# bash -c "voltctl -m 32MB device flows # > $LOG_FOLDER/${stack_ns}/voltha-device-flows-#.txt" || true
+            printf '%s\n' \$(voltctl -m 32MB device list | grep olt | awk '{print \$1}') | xargs --no-run-if-empty -I# bash -c "voltctl -m 32MB device port list --format 'table{{.PortNo}}\t{{.Label}}\t{{.Type}}\t{{.AdminState}}\t{{.OperStatus}}' # > $LOG_FOLDER/${stack_ns}/voltha-device-ports-#.txt" || true
+
+            printf '%s\n' \$(voltctl -m 32MB logicaldevice list -q) | xargs --no-run-if-empty -I# bash -c "voltctl -m 32MB logicaldevice flows # > $LOG_FOLDER/${stack_ns}/voltha-logicaldevice-flows-#.txt" || true
+            printf '%s\n' \$(voltctl -m 32MB logicaldevice list -q) | xargs --no-run-if-empty -I# bash -c "voltctl -m 32MB logicaldevice port list # > $LOG_FOLDER/${stack_ns}/voltha-logicaldevice-ports-#.txt" || true
+
+            # remove VOLTHA port-forward
+            ps aux | grep port-forw | grep voltha-api | grep -v grep | awk '{print \$2}' | xargs --no-run-if-empty kill -9 || true
+            """
+          } catch(e) {
+            println e
+            sh '''
+            echo "Can't get device list from voltctl"
+            '''
+          }
+        }
+      }
+      // get cpu usage by container
+      sh '''
+      if [ ${withMonitoring} = true ] ; then
+        cd $WORKSPACE/voltha-system-tests
+        source ./vst_venv/bin/activate
+        sleep 60 # we have to wait for prometheus to collect all the information
+        python scripts/sizing.py -o $WORKSPACE/plots || true
+      fi
+      '''
+      archiveArtifacts artifacts: 'kind-voltha/install-*.log,execution-time-*.txt,logs/**/*.txt,logs/**/*.tar.gz,logs/**/*.tgz,RobotLogs/**/*,plots/*,etcd-metrics/*'
+    }
+  }
+}
+
+def deploy_voltha_stacks(numberOfStacks) {
+  for (int i = 1; i <= numberOfStacks.toInteger(); i++) {
+    timeout(time: 5, unit: 'MINUTES') {
+      stage("Deploy VOLTHA stack " + i) {
+
+        def localCharts = false
+        if (volthaHelmChartsChange != "" || release != "master") {
+          localCharts = true
+        }
+
+        def volthaHelmFlags =
+                "--set global.log_level=${logLevel} " +
+                "--set enablePerf=true,onu=${onus},pon=${pons} " +
+                "--set securityContext.enabled=false " +
+                params.extraHelmFlags
+
+        volthaStackDeploy([
+          bbsimReplica: olts.toInteger(),
+          infraNamespace: "infra",
+          volthaNamespace: "voltha${i}",
+          stackName: "voltha${i}",
+          stackId: i,
+          workflow: workflow,
+          extraHelmFlags: volthaHelmFlags,
+          localCharts: localCharts,
+          onosReplica: onosReplicas,
+        ])
+      }
+    }
+  }
+}
+
+def test_voltha_stacks(numberOfStacks) {
+  for (int i = 1; i <= numberOfStacks.toInteger(); i++) {
+    stage("Test VOLTHA stack " + i) {
+      timeout(time: 15, unit: 'MINUTES') {
+        sh """
+
+        # we are restarting the voltha-api port-forward for each stack, no need to have a different voltconfig file
+        voltctl -s 127.0.0.1:55555 config > $HOME/.volt/config
+        export VOLTCONFIG=$HOME/.volt/config
+
+        # _TAG=voltha-port-forward kubectl port-forward --address 0.0.0.0 -n voltha${i} svc/voltha${i}-voltha-api 55555:55555& > /dev/null 2>&1
+        _TAG="voltha-port-forward" bash -c "while true; do kubectl port-forward --address 0.0.0.0 -n voltha${i} svc/voltha${i}-voltha-api 55555:55555 > /dev/null 2>&1; done"&
+
+        # wait a bit to make sure the port-forwarding has started
+        sleep 5
+
+
+          ROBOT_PARAMS="-v stackId:${i} \
+            -v olt:${olts} \
+            -v pon:${pons} \
+            -v onu:${onus} \
+            -v workflow:${workflow} \
+            -v withEapol:${withEapol} \
+            -v withDhcp:${withDhcp} \
+            -v withIgmp:${withIgmp} \
+            --noncritical non-critical \
+            -e igmp \
+            -e onu-upgrade \
+            -e teardown "
+
+          if [ ${withEapol} = false ] ; then
+            ROBOT_PARAMS+="-e authentication "
+          fi
+
+          if [ ${withDhcp} = false ] ; then
+            ROBOT_PARAMS+="-e dhcp "
+          fi
+
+          if [ ${provisionSubscribers} = false ] ; then
+            # if we're not considering subscribers then we don't care about authentication and dhcp
+            ROBOT_PARAMS+="-e authentication -e provision -e flow-after -e dhcp "
+          fi
+
+          if [ ${withFlows} = false ] ; then
+            ROBOT_PARAMS+="-i setup -i activation "
+          fi
+
+          cd $WORKSPACE/voltha-system-tests
+          source ./vst_venv/bin/activate
+          robot -d $WORKSPACE/RobotLogs/voltha${i} \
+          \$ROBOT_PARAMS tests/scale/Voltha_Scale_Tests.robot
+
+          # collect results
+          python tests/scale/collect-result.py -r $WORKSPACE/RobotLogs/voltha${i}/output.xml -p $WORKSPACE/plots > $WORKSPACE/execution-time-voltha${i}.txt || true
+          cat $WORKSPACE/execution-time-voltha${i}.txt
+        """
+        sh """
+          # remove VOLTHA port-forward
+          ps aux | grep port-forw | grep voltha-api | grep -v grep | awk '{print \$2}' | xargs --no-run-if-empty kill -9 2>&1 > /dev/null || true
+        """
+      }
+    }
+  }
+}