chore: update profiling configuration

Author: jeastham1993

docker-compose.yml

@@ -342,8 +342,10 @@ services:
       DD_TRACE_OTEL_ENABLED: "true"
       DD_LOGS_INJECTION: "true"
       DD_RUNTIME_METRICS_ENABLED: "true"
-      # The .NET profile does not support ARM64, this won't work if running on Apple Silicon Macs
+      # The .NET profiler does not support ARM64, this won't work if running on Apple Silicon Macs
       DD_PROFILING_ENABLED: "true"
+      # Required for Datadog .NET Continuous Profiler (x64 only)
+      LD_PRELOAD: /opt/datadog/linux-x64/Datadog.Linux.ApiWrapper.x64.so
       # Application configuration
       ASPNETCORE_ENVIRONMENT: Development
       DRIVING: AGNOSTIC
@@ -389,8 +391,10 @@ services:
       DD_TRACE_OTEL_ENABLED: "true"
       DD_LOGS_INJECTION: "true"
       DD_RUNTIME_METRICS_ENABLED: "true"
-      # The .NET profile does not support ARM64, this won't work if running on Apple Silicon Macs
+      # The .NET profiler does not support ARM64, this won't work if running on Apple Silicon Macs
       DD_PROFILING_ENABLED: "true"
+      # Required for Datadog .NET Continuous Profiler (x64 only)
+      LD_PRELOAD: /opt/datadog/linux-x64/Datadog.Linux.ApiWrapper.x64.so
       ASPNETCORE_ENVIRONMENT: Development
       DRIVING: AGNOSTIC
       DRIVEN: AGNOSTIC
@@ -418,8 +422,10 @@ services:
       DD_TRACE_OTEL_ENABLED: "true"
       DD_LOGS_INJECTION: "true"
       DD_RUNTIME_METRICS_ENABLED: "true"
-      # The .NET profile does not support ARM64, this won't work if running on Apple Silicon Macs
+      # The .NET profiler does not support ARM64, this won't work if running on Apple Silicon Macs
       DD_PROFILING_ENABLED: "true"
+      # Required for Datadog .NET Continuous Profiler (x64 only)
+      LD_PRELOAD: /opt/datadog/linux-x64/Datadog.Linux.ApiWrapper.x64.so
       ASPNETCORE_ENVIRONMENT: Development
       DRIVING: AGNOSTIC
       DRIVEN: AGNOSTIC

user-management/infra/aws/lib/api.ts

@@ -71,6 +71,8 @@ export class Api extends Construct {
         DD_LOGS_INJECTION: "true",
         DD_RUNTIME_METRICS_ENABLED: "true",
         DD_PROFILING_ENABLED: "true",
+        // Required for Datadog .NET Continuous Profiler
+        LD_PRELOAD: "/opt/datadog/linux-x64/Datadog.Linux.ApiWrapper.x64.so",
         DEPLOYMENT_HOST_URL: `https://${props.serviceProps.cloudfrontDistribution.distributionDomainName}`,
         DRIVING: "ASPNET",
         DRIVEN: "AWS",

user-management/infra/aws/lib/background-workers.ts

@@ -187,6 +187,9 @@ export class BackgroundWorkers extends Construct {
             DD_LOGS_INJECTION: "true",
             DD_RUNTIME_METRICS_ENABLED: "true",
             DD_PROFILING_ENABLED: "true",
+            // Required for Datadog .NET Continuous Profiler
+            LD_PRELOAD:
+              "/opt/datadog/linux-x64/Datadog.Linux.ApiWrapper.x64.so",
             POWERTOOLS_SERVICE_NAME: props.sharedProps.serviceName,
             POWERTOOLS_LOG_LEVEL:
               props.sharedProps.environment === "prod" ? "WARN" : "INFO",
@@ -202,20 +205,22 @@ export class BackgroundWorkers extends Construct {
           },
           secrets: {
             DD_API_KEY: Secret.fromSsmParameter(
-              props.sharedProps.datadog.apiKeyParameter
+              props.sharedProps.datadog.apiKeyParameter,
             ),
-            ConnectionStrings__database: props.serviceProps.databaseCredentials.getConnectionStringEcsSecret()!,
+            ConnectionStrings__database:
+              props.serviceProps.databaseCredentials.getConnectionStringEcsSecret()!,
             ...props.serviceProps.messagingConfiguration.asSecrets(),
           },
           serviceDiscoveryNamespace: props.serviceDiscoveryNamespace,
           serviceDiscoveryName: props.serviceDiscoveryName,
           deployInPrivateSubnet: props.deployInPrivateSubnet,
+          // .NET profiler only works in x86.
           runtimePlatform: {
-            cpuArchitecture: CpuArchitecture.ARM64,
+            cpuArchitecture: CpuArchitecture.X86_64,
             operatingSystemFamily: OperatingSystemFamily.LINUX,
           },
           serviceDependencies: props.serviceProps.serviceDependencies,
-        }
+        },
       );
     }
   }

user-management/infra/aws/lib/user-service-stack.ts

@@ -84,6 +84,8 @@ export class UserServiceStack extends cdk.Stack {
         DD_LOGS_INJECTION: "true",
         DD_RUNTIME_METRICS_ENABLED: "true",
         DD_PROFILING_ENABLED: "true",
+        // Required for Datadog .NET Continuous Profiler
+        LD_PRELOAD: "/opt/datadog/linux-x64/Datadog.Linux.ApiWrapper.x64.so",
         DEPLOYMENT_HOST_URL: `https://${sharedResources.cloudfrontDistribution.distributionDomainName}`,
         DRIVING: "ASPNET",
         DRIVEN: "AWS",