Add LGTM traces test / check

(cherry picked from commit e92d99f)

integration-tests/observability-lgtm/src/main/resources/application.properties

@@ -6,12 +6,9 @@ quarkus.micrometer.export.otlp.enabled=true
 quarkus.micrometer.export.otlp.publish=true
 quarkus.micrometer.export.otlp.step=PT5S
 quarkus.micrometer.export.otlp.default-registry=true
-%dev.quarkus.micrometer.export.otlp.url=http://${quarkus.otel-collector.url}/v1/metrics
 %prod.quarkus.micrometer.export.otlp.url=http://localhost:4318/v1/metrics
 
 #opentelemetry
-quarkus.otel.exporter.otlp.traces.protocol=http/protobuf
-%dev.quarkus.otel.exporter.otlp.traces.endpoint=http://${quarkus.otel-collector.url}
 %prod.quarkus.otel.exporter.otlp.traces.endpoint=http://localhost:4318
 
 #quarkus.observability.lgtm.image-name=grafana/otel-lgtm

integration-tests/observability-lgtm/src/test/java/io/quarkus/observability/test/LgtmTestBase.java

@@ -28,6 +28,9 @@ public void testTracing() {
         Awaitility.await().atMost(61, TimeUnit.SECONDS).until(
                 () -> client.query("xvalue_X"),
                 result -> !result.data.result.isEmpty());
+        Awaitility.await().atMost(61, TimeUnit.SECONDS).until(
+                () -> client.traces("quarkus-integration-test-observability-lgtm", 20, 3),
+                result -> !result.traces.isEmpty());
     }
 
 }

integration-tests/observability-lgtm/src/test/java/io/quarkus/observability/test/support/GrafanaClient.java

@@ -89,4 +89,23 @@ public QueryResult query(String query) {
                 });
         return ref.get();
     }
+
+    public TempoResult traces(String service, int limit, int spss) {
+        AtomicReference<TempoResult> ref = new AtomicReference<>();
+        String path = "/api/datasources/proxy/uid/tempo/api/search?q=%7Bresource.service.name%3D%22"
+                + service + "%22%7D&limit=" + limit + "&spss=" + spss;
+        handle(
+                path,
+                HttpRequest.Builder::GET,
+                HttpResponse.BodyHandlers.ofString(),
+                (r, b) -> {
+                    try {
+                        TempoResult result = MAPPER.readValue(b, TempoResult.class);
+                        ref.set(result);
+                    } catch (JsonProcessingException e) {
+                        throw new UncheckedIOException(e);
+                    }
+                });
+        return ref.get();
+    }
 }

integration-tests/observability-lgtm/src/test/java/io/quarkus/observability/test/support/TempoResult.java

@@ -0,0 +1,38 @@
+package io.quarkus.observability.test.support;
+
+import java.util.List;
+import java.util.Map;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+public class TempoResult {
+    public List<Map<Object, Object>> traces;
+    public Metrics metrics;
+
+    // getters and setters
+
+    @Override
+    public String toString() {
+        return "TempoResult{" +
+                "traces=" + traces +
+                ", metrics=" + metrics +
+                '}';
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static class Metrics {
+        public int inspectedBytes;
+        public int completedJobs;
+        public int totalJobs;
+
+        @Override
+        public String toString() {
+            return "Metrics{" +
+                    "inspectedBytes=" + inspectedBytes +
+                    ", completedJobs=" + completedJobs +
+                    ", totalJobs=" + totalJobs +
+                    '}';
+        }
+    }
+}