diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/PrometheusTelemetryManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/PrometheusTelemetryManager.java
new file mode 100644
index 0000000..f06a961
--- /dev/null
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/PrometheusTelemetryManager.java
@@ -0,0 +1,196 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.
+ */
+package org.onosproject.openstacktelemetry.impl;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onosproject.openstacktelemetry.api.FlowInfo;
+import org.onosproject.openstacktelemetry.api.OpenstackTelemetryService;
+import org.onosproject.openstacktelemetry.api.PrometheusTelemetryAdminService;
+import org.onosproject.openstacktelemetry.api.config.PrometheusTelemetryConfig;
+import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import io.prometheus.client.Counter;
+import io.prometheus.client.exporter.MetricsServlet;
+import org.eclipse.jetty.server.Server;
+import org.eclipse.jetty.servlet.ServletContextHandler;
+import org.eclipse.jetty.servlet.ServletHolder;
+import java.util.Set;
+
+/**
+ * Prometheus telemetry manager.
+ */
+@Component(immediate = true)
+@Service
+public class PrometheusTelemetryManager implements PrometheusTelemetryAdminService {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private Server prometheusExporter;
+
+    private static final String BYTE_VM2VM = "byte_vm2vm";
+    private static final String BYTE_DEVICE = "byte_device";
+    private static final String BYTE_SRC_IP = "byte_src_ip";
+    private static final String BYTE_DST_IP = "byte_dst_ip";
+
+    private static final String PKT_VM2VM = "pkt_vm2vm";
+    private static final String PKT_DEVICE = "pkt_device";
+    private static final String PKT_SRC_IP = "pkt_src_ip";
+    private static final String PKT_DST_IP = "pkt_dst_ip";
+
+    private static final String PKT_ERROR = "pkt_error";
+    private static final String PKT_DROP = "pkt_drop";
+
+    private static final String LABEL_IP_5_TUPLE = "IP_5_TUPLE";
+    private static final String LABEL_DEV_ID = "DEVICE_ID";
+    private static final String LABEL_SRC_IP = "SOURCE_IP";
+    private static final String LABEL_DST_IP = "DESTINATION_IP";
+
+    private static final String HELP_MSG = "SONA Flow statistics";
+
+    private static Counter byteVM2VM = Counter.build().name(BYTE_VM2VM)
+                                    .help(HELP_MSG)
+                                    .labelNames(LABEL_IP_5_TUPLE).register();
+
+    private static Counter byteDevice = Counter.build().name(BYTE_DEVICE)
+                                    .help(HELP_MSG)
+                                    .labelNames(LABEL_DEV_ID).register();
+
+    private static Counter byteSrcIp = Counter.build().name(BYTE_SRC_IP)
+                                    .help(HELP_MSG)
+                                    .labelNames(LABEL_SRC_IP).register();
+
+    private static Counter byteDstIp = Counter.build().name(BYTE_DST_IP)
+                                    .help(HELP_MSG)
+                                    .labelNames(LABEL_DST_IP).register();
+
+    private static Counter pktVM2VM = Counter.build().name(PKT_VM2VM)
+                                    .help(HELP_MSG)
+                                    .labelNames(LABEL_IP_5_TUPLE).register();
+
+    private static Counter pktDevice = Counter.build().name(PKT_DEVICE)
+                                    .help(HELP_MSG)
+                                    .labelNames(LABEL_DEV_ID).register();
+
+    private static Counter pktSrcIp = Counter.build().name(PKT_SRC_IP)
+                                    .help(HELP_MSG)
+                                    .labelNames(LABEL_SRC_IP).register();
+
+    private static Counter pktDstIp = Counter.build().name(PKT_DST_IP)
+                                    .help(HELP_MSG)
+                                    .labelNames(LABEL_DST_IP).register();
+
+    private static Counter pktError = Counter.build().name(PKT_ERROR)
+                                    .help(HELP_MSG)
+                                    .register();
+    private static Counter pktDrop = Counter.build().name(PKT_DROP)
+                                    .help(HELP_MSG)
+                                    .register();
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected OpenstackTelemetryService openstackTelemetryService;
+
+    @Activate
+    protected void activate() {
+        openstackTelemetryService.addTelemetryService(this);
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        stop();
+        openstackTelemetryService.removeTelemetryService(this);
+        log.info("Stopped");
+    }
+
+    @Override
+    public void start(TelemetryConfig config) {
+        log.info("Prometheus exporter starts.");
+
+        PrometheusTelemetryConfig prometheusConfig = (PrometheusTelemetryConfig) config;
+
+        try {
+            // TODO  Offer a 'Authentication'
+            prometheusExporter = new Server(prometheusConfig.port());
+            ServletContextHandler context = new ServletContextHandler();
+            context.setContextPath("/");
+            prometheusExporter.setHandler(context);
+            context.addServlet(new ServletHolder(new MetricsServlet()), "/metrics");
+
+            log.info("Prometeus server start");
+
+            prometheusExporter.start();
+        } catch (Exception ex) {
+            log.warn("Exception: {}", ex.toString());
+        }
+    }
+
+    @Override
+    public void stop() {
+        try {
+            prometheusExporter.stop();
+        } catch (Exception ex) {
+            log.warn("Exception: {}", ex.toString());
+        }
+        log.info("Prometheus exporter has stopped");
+    }
+
+    @Override
+    public void restart(TelemetryConfig config) {
+        stop();
+        start(config);
+    }
+
+    @Override
+    public void publish(Set<FlowInfo> flowInfos) {
+        if (flowInfos.size() == 0) {
+            log.debug("No record to publish");
+            return;
+        }
+
+        long flowByte;
+        int flowPkt;
+        for (FlowInfo flowInfo: flowInfos) {
+            flowByte = flowInfo.statsInfo().currAccBytes() - flowInfo.statsInfo().prevAccBytes();
+            flowPkt = flowInfo.statsInfo().currAccPkts() - flowInfo.statsInfo().prevAccPkts();
+
+            byteVM2VM.labels(flowInfo.uniqueFlowInfoKey()).inc(flowByte);
+            byteDevice.labels(flowInfo.deviceId().toString()).inc(flowByte);
+            byteSrcIp.labels(flowInfo.srcIp().toString()).inc(flowByte);
+            byteDstIp.labels(flowInfo.dstIp().toString()).inc(flowByte);
+
+            pktVM2VM.labels(flowInfo.uniqueFlowInfoKey()).inc(flowPkt);
+            pktDevice.labels(flowInfo.deviceId().toString()).inc(flowPkt);
+            pktSrcIp.labels(flowInfo.srcIp().toString()).inc(flowPkt);
+            pktDstIp.labels(flowInfo.dstIp().toString()).inc(flowPkt);
+
+            pktError.inc(flowInfo.statsInfo().errorPkts());
+            pktDrop.inc(flowInfo.statsInfo().dropPkts());
+        }
+    }
+
+    @Override
+    public boolean isRunning() {
+        log.info("Prometheus Exporter State: {}", prometheusExporter.isRunning());
+        return prometheusExporter.isRunning();
+    }
+}