use IService instead of BaseService

packages/@aws-cdk/aws-codepipeline-actions/lib/ecs/deploy-action.ts

@@ -39,7 +39,7 @@ export interface EcsDeployActionProps extends codepipeline.CommonAwsActionProps
   /**
    * The ECS Service to deploy.
    */
-  readonly service: ecs.BaseService;
+  readonly service: ecs.IService;
 }
 
 /**

packages/@aws-cdk/aws-codepipeline-actions/test/ecs/test.ecs-deploy-action.ts

@@ -80,6 +80,21 @@ export = {
 
       test.done();
     },
+
+    'can be created just by serviceArn'(test: Test) {
+      const service = anyIService();
+      const artifact = new codepipeline.Artifact('Artifact');
+
+      test.doesNotThrow(() => {
+        new cpactions.EcsDeployAction({
+          actionName: 'ECS',
+          service,
+          imageFile: artifact.atPath('imageFile.json'),
+        });
+      });
+
+      test.done();
+    },
   },
 };
 
@@ -98,3 +113,8 @@ function anyEcsService(): ecs.FargateService {
     taskDefinition,
   });
 }
+
+function anyIService(): ecs.IService {
+  const stack = new cdk.Stack();
+  return ecs.FargateService.fromFargateServiceArn(stack, 'FargateService', 'serviceArn');
+}