Initial Custom Metrics - Node & Task Heartbeat (#3082)

* Refactor logging to use  and new function queue

* Testing setup of custom metric.

* Changing host.json

* Updating log interface.

* changes.

* Fix encoding.

* Updating.

* Updating tests.

* Adding metrics to program

* Pushing latest changes.

* Update interface references.

* Removing string type.

* Add string back.

* Getting additional data for task heartbeat.

* Removing additional fields.

* Removing containers.

* Cleaning up.

* Adding feature flag.

* Adding bicep changes.

* Fixing tests.

* Fixing test metrics.

* Removing most of tests.

* Telemetry Refact Round 2.

* Updated metrics.

* Remove custom metric function.

* Syncing events.cs

* Making optional.

* Using events as metric dimensions.

* Fixing ORM tests.

* Remove metric records.

* Removing bad test.

* Remove testmetrics.'

* Adding test back.

* Improving custom dimensions serialization.

* Update src/ApiService/ApiService/onefuzzlib/Metrics.cs

Co-authored-by: Cheick Keita <kcheick@gmail.com>

* Reverting change.

---------

Co-authored-by: Cheick Keita <kcheick@gmail.com>

src/ApiService/ApiService/FeatureFlags.cs

@@ -4,4 +4,5 @@ public static class FeatureFlagConstants {
     public const string RenderOnlyScribanTemplates = "RenderOnlyScribanTemplates";
     public const string EnableNodeDecommissionStrategy = "EnableNodeDecommissionStrategy";
     public const string SemanticNotificationConfigValidation = "SemanticNotificationConfigValidation";
+    public const string EnableCustomMetricTelemetry = "EnableCustomMetricTelemetry";
 }

src/ApiService/ApiService/Functions/QueueNodeHeartbeat.cs

@@ -17,10 +17,12 @@ public class QueueNodeHearbeat {
 
     [Function("QueueNodeHeartbeat")]
     public async Async.Task Run([QueueTrigger("node-heartbeat", Connection = "AzureWebJobsStorage")] string msg) {
-        _log.Info($"heartbeat: {msg}");
+
         var nodes = _context.NodeOperations;
         var events = _context.Events;
+        var metrics = _context.Metrics;
 
+        _log.Info($"heartbeat: {msg}");
         var hb = JsonSerializer.Deserialize<NodeHeartbeatEntry>(msg, EntityConverter.GetJsonSerializerOptions()).EnsureNotNull($"wrong data {msg}");
         var node = await nodes.GetByMachineId(hb.NodeId);
 
@@ -35,7 +37,12 @@ public class QueueNodeHearbeat {
             _log.WithHttpStatus(r.ErrorV).Error($"Failed to replace heartbeat: {hb.NodeId:Tag:NodeId}");
         }
 
+        var nodeHeartbeatEvent = new EventNodeHeartbeat(node.MachineId, node.ScalesetId, node.PoolName, node.State);
         // TODO: do we still send event if we fail do update the table ?
-        await events.SendEvent(new EventNodeHeartbeat(node.MachineId, node.ScalesetId, node.PoolName));
+        await events.SendEvent(nodeHeartbeatEvent);
+        if (await _context.FeatureManagerSnapshot.IsEnabledAsync(FeatureFlagConstants.EnableCustomMetricTelemetry)) {
+            metrics.SendMetric(1, nodeHeartbeatEvent);
+        }
+
     }
 }

src/ApiService/ApiService/Functions/QueueTaskHeartbeat.cs

@@ -7,34 +7,45 @@ namespace Microsoft.OneFuzz.Service.Functions;
 
 public class QueueTaskHearbeat {
     private readonly ILogTracer _log;
+    private readonly IOnefuzzContext _context;
 
-    private readonly IEvents _events;
+    public QueueTaskHearbeat(ILogTracer logTracer, IOnefuzzContext context) {
-    private readonly ITaskOperations _tasks;
-
-    public QueueTaskHearbeat(ILogTracer logTracer, ITaskOperations tasks, IEvents events) {
         _log = logTracer;
-        _tasks = tasks;
+        _context = context;
-        _events = events;
     }
 
     [Function("QueueTaskHeartbeat")]
     public async Async.Task Run([QueueTrigger("task-heartbeat", Connection = "AzureWebJobsStorage")] string msg) {
-        _log.Info($"heartbeat: {msg}");
 
+        var _tasks = _context.TaskOperations;
+        var _jobs = _context.JobOperations;
+        var _events = _context.Events;
+        var _metrics = _context.Metrics;
+
+        _log.Info($"heartbeat: {msg}");
         var hb = JsonSerializer.Deserialize<TaskHeartbeatEntry>(msg, EntityConverter.GetJsonSerializerOptions()).EnsureNotNull($"wrong data {msg}");
 
         var task = await _tasks.GetByTaskId(hb.TaskId);
-
         if (task == null) {
             _log.Warning($"invalid {hb.TaskId:Tag:TaskId}");
             return;
         }
 
+        var job = await _jobs.Get(task.JobId);
+        if (job == null) {
+            _log.Warning($"invalid {task.JobId:Tag:JobId}");
+            return;
+        }
         var newTask = task with { Heartbeat = DateTimeOffset.UtcNow };
         var r = await _tasks.Replace(newTask);
         if (!r.IsOk) {
             _log.WithHttpStatus(r.ErrorV).Error($"failed to replace with new task {hb.TaskId:Tag:TaskId}");
         }
-        await _events.SendEvent(new EventTaskHeartbeat(newTask.JobId, newTask.TaskId, newTask.Config));
+
+        var taskHeartBeatEvent = new EventTaskHeartbeat(newTask.JobId, newTask.TaskId, job.Config.Project, job.Config.Name, newTask.State, newTask.Config);
+        await _events.SendEvent(taskHeartBeatEvent);
+        if (await _context.FeatureManagerSnapshot.IsEnabledAsync(FeatureFlagConstants.EnableCustomMetricTelemetry)) {
+            _metrics.SendMetric(1, taskHeartBeatEvent);
+        }
     }
 }

src/ApiService/ApiService/Log.cs

@@ -57,6 +57,8 @@ public struct LogStringHandler {
 public interface ILog {
     void Log(Guid correlationId, LogStringHandler message, SeverityLevel level, IReadOnlyDictionary<string, string> tags, string? caller);
     void LogEvent(Guid correlationId, LogStringHandler evt, IReadOnlyDictionary<string, string> tags, IReadOnlyDictionary<string, double>? metrics, string? caller);
+    void LogMetric(Guid correlationId, LogStringHandler metric, int value, IReadOnlyDictionary<string, string>? customDimensions, IReadOnlyDictionary<string, string> tags, string? caller);
+
     void LogException(Guid correlationId, Exception ex, LogStringHandler message, IReadOnlyDictionary<string, string> tags, IReadOnlyDictionary<string, double>? metrics, string? caller);
     void Flush();
 }
@@ -103,6 +105,17 @@ sealed class AppInsights : ILog {
         _telemetryClient.TrackEvent(telemetry);
     }
 
+    public void LogMetric(Guid correlationId, LogStringHandler metric, int value, IReadOnlyDictionary<string, string>? customDimensions, IReadOnlyDictionary<string, string> tags, string? caller) {
+        var telemetry = new MetricTelemetry(metric.ToString(), value, value, value, value, value);
+        // copy properties
+        Copy(telemetry.Properties, customDimensions);
+        telemetry.Properties["CorrelationId"] = correlationId.ToString();
+        if (caller is not null) telemetry.Properties["CalledBy"] = caller;
+        Copy(telemetry.Properties, metric.Tags);
+
+        _telemetryClient.TrackMetric(telemetry);
+    }
+
     public void LogException(Guid correlationId, Exception ex, LogStringHandler message, IReadOnlyDictionary<string, string> tags, IReadOnlyDictionary<string, double>? metrics, string? caller) {
         {
             var telemetry = new ExceptionTelemetry(ex);
@@ -160,11 +173,17 @@ sealed class Console : ILog {
         }
     }
 
+    public void LogMetric(Guid correlationId, LogStringHandler metric, int value, IReadOnlyDictionary<string, string>? customDimensions, IReadOnlyDictionary<string, string> tags, string? caller) {
+        System.Console.Out.WriteLine($"[{correlationId}][Metric] {metric}");
+        LogTags(correlationId, tags);
+    }
+
     public void LogEvent(Guid correlationId, LogStringHandler evt, IReadOnlyDictionary<string, string> tags, IReadOnlyDictionary<string, double>? metrics, string? caller) {
         System.Console.Out.WriteLine($"[{correlationId}][Event] {evt}");
         LogTags(correlationId, tags);
         LogMetrics(correlationId, metrics);
     }
+
     public void LogException(Guid correlationId, Exception ex, LogStringHandler message, IReadOnlyDictionary<string, string> tags, IReadOnlyDictionary<string, double>? metrics, string? caller) {
         System.Console.Out.WriteLine($"[{correlationId}][Exception] {message}:{ex}");
         LogTags(correlationId, tags);
@@ -183,6 +202,7 @@ public interface ILogTracer {
 
     void Error(Error error);
     void Event(LogStringHandler evt, IReadOnlyDictionary<string, double>? metrics = null);
+    void Metric(LogStringHandler metric, int value, IReadOnlyDictionary<string, string>? customDimensions);
     void Exception(Exception ex, LogStringHandler message = $"", IReadOnlyDictionary<string, double>? metrics = null);
     void ForceFlush();
     void Info(LogStringHandler message);
@@ -327,6 +347,13 @@ public class LogTracer : ILogTracerInternal {
         }
     }
 
+    public void Metric(LogStringHandler metric, int value, IReadOnlyDictionary<string, string>? customDimensions) {
+        var caller = GetCaller();
+        foreach (var logger in _loggers) {
+            logger.LogMetric(CorrelationId, metric, value, customDimensions, Tags, caller);
+        }
+    }
+
     public void Exception(Exception ex, LogStringHandler message, IReadOnlyDictionary<string, double>? metrics) {
         var caller = GetCaller();
         foreach (var logger in _loggers) {

src/ApiService/ApiService/OneFuzzTypes/Events.cs

@@ -167,12 +167,14 @@ public record EventTaskStateUpdated(
     TaskConfig Config
     ) : BaseEvent();
 
-
 [EventType(EventType.TaskHeartbeat)]
 public record EventTaskHeartbeat(
    Guid JobId,
    Guid TaskId,
-   TaskConfig Config
+   string? Project,
+   string? Name,
+   TaskState? State,
+   TaskConfig? Config
 ) : BaseEvent();
 
 [EventType(EventType.Ping)]
@@ -273,7 +275,8 @@ public record EventNodeCreated(
 public record EventNodeHeartbeat(
     Guid MachineId,
     Guid? ScalesetId,
-    PoolName PoolName
+    PoolName PoolName,
+    NodeState state
     ) : BaseEvent();
 
 

src/ApiService/ApiService/Program.cs

@@ -85,6 +85,7 @@ public class Program {
                 })
                 .AddScoped<IAutoScaleOperations, AutoScaleOperations>()
                 .AddScoped<INodeOperations, NodeOperations>()
+                .AddScoped<IMetrics, Metrics>()
                 .AddScoped<IEvents, Events>()
                 .AddScoped<IWebhookOperations, WebhookOperations>()
                 .AddScoped<IWebhookMessageLogOperations, WebhookMessageLogOperations>()

src/ApiService/ApiService/host.json

@@ -3,8 +3,8 @@
     "logging": {
         "applicationInsights": {
             "samplingSettings": {
-                "isEnabled": true,
+                "isEnabled": false,
-                "excludedTypes": "Request"
+                "excludedTypes": "Request;Trace;Dependency;Event;Exception"
             }
         }
     }

src/ApiService/ApiService/onefuzzlib/Events.cs

@@ -21,7 +21,6 @@ namespace Microsoft.OneFuzz.Service {
 
     public interface IEvents {
         Async.Task SendEvent(BaseEvent anEvent);
-
         Async.Task QueueSignalrEvent(DownloadableEventMessage message);
 
         void LogEvent(BaseEvent anEvent);

src/ApiService/ApiService/onefuzzlib/Metrics.cs

@@ -0,0 +1,54 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Microsoft.OneFuzz.Service.OneFuzzLib.Orm;
+
+namespace Microsoft.OneFuzz.Service {
+
+    public record CustomMetric(
+         string name,
+         int value,
+         Dictionary<string, string> customDimensions
+    );
+
+
+    public interface IMetrics {
+        void SendMetric(int metricValue, BaseEvent customDimensions);
+
+        void LogMetric(BaseEvent metric);
+    }
+
+    public class Metrics : IMetrics {
+        private readonly ILogTracer _log;
+        private readonly IOnefuzzContext _context;
+        private readonly JsonSerializerOptions _options;
+
+        public Metrics(ILogTracer log, IOnefuzzContext context) {
+            _context = context;
+            _log = log;
+            _options = new JsonSerializerOptions(EntityConverter.GetJsonSerializerOptions()) {
+                DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
+            };
+            _options.Converters.Add(new RemoveUserInfo());
+        }
+
+        public void SendMetric(int metricValue, BaseEvent customDimensions) {
+            var metricType = customDimensions.GetEventType();
+
+            _ = _options.PropertyNamingPolicy ?? throw new ArgumentException("Serializer _options not available.");
+
+            var metricTypeSnakeCase = _options.PropertyNamingPolicy.ConvertName($"{metricType}");
+
+            var dimensionNode = JsonSerializer.SerializeToNode(customDimensions, customDimensions.GetType(), _options);
+            _ = dimensionNode ?? throw new JsonException("Was not able to properly serialize the custom dimensions.");
+            var dimensionDict = dimensionNode.AsObject().ToDictionary(kvp => kvp.Key.ToString(), kvp => kvp.Value is not null ? kvp.Value.ToString() : "");
+
+            _log.Metric($"{metricTypeSnakeCase}", metricValue, dimensionDict);
+            LogMetric(customDimensions);
+        }
+
+        public void LogMetric(BaseEvent metric) {
+            var serializedMetric = JsonSerializer.Serialize(metric, metric.GetType(), _options);
+            _log.Info($"sending metric: {metric.GetEventType():Tag:MetricType} - {serializedMetric}");
+        }
+    }
+}

src/ApiService/ApiService/onefuzzlib/OnefuzzContext.cs

@@ -15,6 +15,7 @@ public interface IOnefuzzContext {
     ICreds Creds { get; }
     IDiskOperations DiskOperations { get; }
     IEvents Events { get; }
+    IMetrics Metrics { get; }
     IExtensions Extensions { get; }
     IIpOperations IpOperations { get; }
     IJobOperations JobOperations { get; }
@@ -62,6 +63,7 @@ public class OnefuzzContext : IOnefuzzContext {
     public IAutoScaleOperations AutoScaleOperations => _serviceProvider.GetRequiredService<IAutoScaleOperations>();
     public INodeOperations NodeOperations => _serviceProvider.GetRequiredService<INodeOperations>();
     public IEvents Events => _serviceProvider.GetRequiredService<IEvents>();
+    public IMetrics Metrics => _serviceProvider.GetRequiredService<IMetrics>();
     public IWebhookOperations WebhookOperations => _serviceProvider.GetRequiredService<IWebhookOperations>();
     public IWebhookMessageLogOperations WebhookMessageLogOperations => _serviceProvider.GetRequiredService<IWebhookMessageLogOperations>();
     public ITaskOperations TaskOperations => _serviceProvider.GetRequiredService<ITaskOperations>();

src/ApiService/IntegrationTests/Fakes/TestContext.cs

@@ -45,6 +45,7 @@ public sealed class TestContext : IOnefuzzContext {
         FeatureManagerSnapshot = new TestFeatureManagerSnapshot();
         WebhookOperations = new TestWebhookOperations(httpClientFactory, logTracer, this);
         Events = new TestEvents(logTracer, this);
+        Metrics = new TestMetrics(logTracer, this);
         WebhookMessageLogOperations = new TestWebhookMessageLogOperations(logTracer, this);
     }
 
@@ -67,6 +68,7 @@ public sealed class TestContext : IOnefuzzContext {
     // Implementations:
 
     public IEvents Events { get; }
+    public IMetrics Metrics { get; }
 
     public IServiceConfig ServiceConfiguration { get; }
 

src/ApiService/IntegrationTests/Fakes/TestMetrics.cs

@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+using Microsoft.OneFuzz.Service;
+
+namespace IntegrationTests.Fakes;
+
+public sealed class TestMetrics : Metrics {
+
+    public List<BaseEvent> Metrics { get; } = new();
+    public List<EventMessage> CustomMetrics { get; } = new();
+    public TestMetrics(ILogTracer log, IOnefuzzContext context)
+        : base(log, context) { }
+}

src/ApiService/IntegrationTests/TestLogTracer.cs

@@ -28,6 +28,11 @@ sealed class TestLogTracer : ILogTracer {
         _output.WriteLine($"[Event] [{evt}]");
     }
 
+    public void Metric(LogStringHandler metric, int value, IReadOnlyDictionary<string, string>? customDimensions) {
+        // TODO: metrics
+        _output.WriteLine($"[Event] [{metric}]");
+    }
+
     public void Exception(Exception ex, LogStringHandler message = $"", IReadOnlyDictionary<string, double>? metrics = null) {
         // TODO: metrics
         _output.WriteLine($"[Error] {message} {ex}");

src/ApiService/Tests/OrmTest.cs

@@ -236,7 +236,7 @@ namespace Tests {
 
         [Fact]
         public void TestEventSerialization() {
-            var expectedEvent = new EventMessage(Guid.NewGuid(), EventType.NodeHeartbeat, new EventNodeHeartbeat(Guid.NewGuid(), Guid.NewGuid(), PoolName.Parse("test-Poool")), Guid.NewGuid(), "test", DateTime.UtcNow);
+            var expectedEvent = new EventMessage(Guid.NewGuid(), EventType.NodeHeartbeat, new EventNodeHeartbeat(Guid.NewGuid(), Guid.NewGuid(), PoolName.Parse("test-Poool"), NodeState.Busy), Guid.NewGuid(), "test", DateTime.UtcNow);
             var serialized = JsonSerializer.Serialize(expectedEvent, EntityConverter.GetJsonSerializerOptions());
             var actualEvent = JsonSerializer.Deserialize<EventMessage>((string)serialized, EntityConverter.GetJsonSerializerOptions());
             Assert.Equal(expectedEvent, actualEvent);

src/deployment/bicep-templates/feature-flags.bicep

@@ -37,4 +37,17 @@ resource validateNotificationConfigSemantics 'Microsoft.AppConfiguration/configu
   }
 }
 
+resource enableCustomMetricFeatureFlag 'Microsoft.AppConfiguration/configurationStores/keyValues@2021-10-01-preview' = {
+  parent: featureFlags
+  name: '.appconfig.featureflag~2FEnableCustomMetricTelemetry'
+  properties: {
+    value: string({
+      id: 'EnableCustomMetricTelemetry'
+      description: 'Allow custom metrics to be sent.'
+      enabled: false
+    })
+    contentType: 'application/vnd.microsoft.appconfig.ff+json;charset=utf-8'
+  }
+}
+
 output AppConfigEndpoint string = 'https://${appConfigName}.azconfig.io'

src/deployment/bicep-templates/storageAccounts.bicep

@@ -33,6 +33,7 @@ var storageAccountFuncQueuesParams = [
   'update-queue'
   'webhooks'
   'signalr-events'
+  'custom-metrics'
 ]
 var fileChangesQueueIndex = 0