feat(apprunner): add ObservabilityConfiguration for AppRunner Service (#30359)

### Issue # (if applicable)

Closes #22985 .

### Reason for this change
At the moment, L2 Construct does not support a tracing setting for the AppRunner Service.


### Description of changes
* Add `ObservabilityConfiguration` Class
* Add `observabilityConfiguration` property to the `Service` Class



### Description of how you validated changes
Add unit tests and integ tests.


### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)
----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: mazyu36

packages/@aws-cdk/aws-apprunner-alpha/README.md

@@ -296,3 +296,22 @@ new apprunner.Service(this, 'Service', {
   }),
 });
 ```
+
+## Observability Configuration
+
+To associate an App Runner service with a custom observability configuration, use the `observabilityConfiguration` property.
+
+```ts
+const observabilityConfiguration = new apprunner.ObservabilityConfiguration(this, 'ObservabilityConfiguration', {
+  observabilityConfigurationName: 'MyObservabilityConfiguration',
+  traceConfigurationVendor: apprunner.TraceConfigurationVendor.AWSXRAY,
+});
+
+new apprunner.Service(this, 'DemoService', {
+  source: apprunner.Source.fromEcrPublic({
+    imageConfiguration: { port: 8000 },
+    imageIdentifier: 'public.ecr.aws/aws-containers/hello-app-runner:latest',
+  }),
+  observabilityConfiguration,
+});
+```

packages/@aws-cdk/aws-apprunner-alpha/lib/index.ts

@@ -1,4 +1,5 @@
 // AWS::AppRunner CloudFormation Resources:
 export * from './auto-scaling-configuration';
+export * from './observability-configuration';
 export * from './service';
 export * from './vpc-connector';

packages/@aws-cdk/aws-apprunner-alpha/lib/observability-configuration.ts

@@ -0,0 +1,163 @@
+import * as cdk from 'aws-cdk-lib/core';
+import { Construct } from 'constructs';
+import { CfnObservabilityConfiguration } from 'aws-cdk-lib/aws-apprunner';
+
+/**
+ * The implementation provider chosen for tracing App Runner services
+ *
+ * @see https://docs.aws.amazon.com/apprunner/latest/dg/monitor.html
+ */
+export enum TraceConfigurationVendor {
+  /**
+   * Tracing (X-Ray)
+   */
+  AWSXRAY = 'AWSXRAY',
+}
+
+/**
+ * Properties of the AppRunner Observability configuration
+ */
+export interface ObservabilityConfigurationProps {
+  /**
+   * The name for the ObservabilityConfiguration.
+   *
+   * @default - a name generated by CloudFormation
+   */
+  readonly observabilityConfigurationName?: string;
+
+  /**
+   * The implementation provider chosen for tracing App Runner services.
+   */
+  readonly traceConfigurationVendor: TraceConfigurationVendor;
+}
+
+/**
+ * Attributes for the App Runner Observability configuration
+ */
+export interface ObservabilityConfigurationAttributes {
+  /**
+   * The name of the Observability configuration.
+   */
+  readonly observabilityConfigurationName: string;
+
+  /**
+   * The revision of the Observability configuration.
+   */
+  readonly observabilityConfigurationRevision: number;
+}
+
+/**
+ * Represents the App Runner Observability configuration.
+ */
+export interface IObservabilityConfiguration extends cdk.IResource {
+  /**
+   * The Name of the Observability configuration.
+   * @attribute
+   */
+  readonly observabilityConfigurationName: string;
+
+  /**
+   * The ARN of the Observability configuration.
+   * @attribute
+   */
+  readonly observabilityConfigurationArn: string;
+
+  /**
+   * The revision of the Observability configuration.
+   * @attribute
+   */
+  readonly observabilityConfigurationRevision: number;
+}
+
+/**
+ * The App Runner Observability configuration
+ *
+ * @resource AWS::AppRunner::ObservabilityConfiguration
+ */
+export class ObservabilityConfiguration extends cdk.Resource implements IObservabilityConfiguration {
+  /**
+   * Imports an App Runner Observability Configuration from attributes.
+   */
+  public static fromObservabilityConfigurationAttributes(scope: Construct, id: string,
+    attrs: ObservabilityConfigurationAttributes): IObservabilityConfiguration {
+    const observabilityConfigurationName = attrs.observabilityConfigurationName;
+    const observabilityConfigurationRevision = attrs.observabilityConfigurationRevision;
+
+    class Import extends cdk.Resource implements IObservabilityConfiguration {
+      public readonly observabilityConfigurationName = observabilityConfigurationName;
+      public readonly observabilityConfigurationRevision = observabilityConfigurationRevision;
+      public readonly observabilityConfigurationArn = cdk.Stack.of(this).formatArn({
+        resource: 'observabilityconfiguration',
+        service: 'apprunner',
+        resourceName: `${attrs.observabilityConfigurationName}/${attrs.observabilityConfigurationRevision}`,
+      });
+    }
+
+    return new Import(scope, id);
+  }
+
+  /**
+   * Imports an App Runner Observability Configuration from its ARN
+   */
+  public static fromArn(scope: Construct, id: string, observabilityConfigurationArn: string): IObservabilityConfiguration {
+    const resourceParts = cdk.Fn.split('/', observabilityConfigurationArn);
+
+    if (!resourceParts || resourceParts.length < 3) {
+      throw new Error(`Unexpected ARN format: ${observabilityConfigurationArn}`);
+    }
+
+    const observabilityConfigurationName = cdk.Fn.select(0, resourceParts);
+    const observabilityConfigurationRevision = Number(cdk.Fn.select(1, resourceParts));
+
+    class Import extends cdk.Resource implements IObservabilityConfiguration {
+      public readonly observabilityConfigurationName = observabilityConfigurationName;
+      public readonly observabilityConfigurationRevision = observabilityConfigurationRevision;
+      public readonly observabilityConfigurationArn = observabilityConfigurationArn;
+    }
+
+    return new Import(scope, id);
+  }
+
+  /**
+   * The ARN of the Observability configuration.
+   * @attribute
+   */
+  readonly observabilityConfigurationArn: string;
+
+  /**
+   * The revision of the Observability configuration.
+   * @attribute
+   */
+  readonly observabilityConfigurationRevision: number;
+
+  /**
+   * The name of the Observability configuration.
+   * @attribute
+   */
+  readonly observabilityConfigurationName: string;
+
+  public constructor(scope: Construct, id: string, props: ObservabilityConfigurationProps) {
+    super(scope, id, {
+      physicalName: props.observabilityConfigurationName,
+    });
+
+    if (
+      props.observabilityConfigurationName !== undefined &&
+      !cdk.Token.isUnresolved(props.observabilityConfigurationName) &&
+      !/^[A-Za-z0-9][A-Za-z0-9\-_]{3,31}$/.test(props.observabilityConfigurationName)
+    ) {
+      throw new Error(`observabilityConfigurationName must match the \`^[A-Za-z0-9][A-Za-z0-9\-_]{3,31}$\` pattern, got ${props.observabilityConfigurationName}`);
+    }
+
+    const resource = new CfnObservabilityConfiguration(this, 'Resource', {
+      observabilityConfigurationName: props.observabilityConfigurationName,
+      traceConfiguration: {
+        vendor: props.traceConfigurationVendor,
+      },
+    });
+
+    this.observabilityConfigurationArn = resource.attrObservabilityConfigurationArn;
+    this.observabilityConfigurationRevision = resource.attrObservabilityConfigurationRevision;
+    this.observabilityConfigurationName = resource.ref;
+  }
+}

packages/@aws-cdk/aws-apprunner-alpha/lib/service.ts

@@ -10,6 +10,7 @@ import { Construct } from 'constructs';
 import { CfnService } from 'aws-cdk-lib/aws-apprunner';
 import { IVpcConnector } from './vpc-connector';
 import { IAutoScalingConfiguration } from './auto-scaling-configuration';
+import { IObservabilityConfiguration } from './observability-configuration';
 
 /**
  * The image repository types
@@ -743,6 +744,14 @@ export interface ServiceProps {
    * @default - IpAddressType.IPV4
    */
   readonly ipAddressType?: IpAddressType;
+
+  /**
+   * Settings for an App Runner observability configuration.
+   *
+   * @default - no observability configuration resource is associated with the service.
+   */
+  readonly observabilityConfiguration?: IObservabilityConfiguration;
+
 }
 
 /**
@@ -1296,6 +1305,10 @@ export class Service extends cdk.Resource implements iam.IGrantable {
       healthCheckConfiguration: this.props.healthCheck ?
         this.props.healthCheck.bind() :
         undefined,
+      observabilityConfiguration: props.observabilityConfiguration ? {
+        observabilityEnabled: true,
+        observabilityConfigurationArn: props.observabilityConfiguration.observabilityConfigurationArn,
+      } : undefined,
     });
 
     // grant required privileges for the role