1 files changed, 12 insertions, 0 deletions
diff --git a/metrics-proxy/src/main/java/ai/vespa/metricsproxy/metric/model/prometheus/PrometheusUtil.java b/metrics-proxy/src/main/java/ai/vespa/metricsproxy/metric/model/prometheus/PrometheusUtil.java
index 46591f29b4f..973e1adb96d 100644
--- a/metrics-proxy/src/main/java/ai/vespa/metricsproxy/metric/model/prometheus/PrometheusUtil.java
+++ b/metrics-proxy/src/main/java/ai/vespa/metricsproxy/metric/model/prometheus/PrometheusUtil.java
@@ -13,6 +13,9 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
+import static java.util.Collections.emptyList;
+import static java.util.Collections.singletonList;
+
 /**
  * @author yj-jtakagi
  * @author gjoranv
@@ -54,6 +57,15 @@ public class PrometheusUtil {
                     sampleList.add(new Sample(metricName, labels, labelValues, metric.getValue().doubleValue(), packet.timestamp * 1000));
                 }
             }
+            if (!packets.isEmpty()) {
+                var firstPacket = packets.get(0);
+                var statusMetricName = serviceName + "_status";
+                // MetricsPacket status 0 means OK, but it's the opposite in Prometheus.
+                var statusMetricValue = (firstPacket.statusCode == 0) ? 1 : 0;
+                var sampleList = singletonList(new Sample(statusMetricName, emptyList(), emptyList(),
+                        statusMetricValue, firstPacket.timestamp * 1000));
+                metricFamilySamples.add(new MetricFamilySamples(statusMetricName, Collector.Type.UNKNOWN, "status of service", sampleList));
+            }
         }));
 
         return new PrometheusModel(metricFamilySamples);