feat(ecs-patterns): LoadBalancedFargateService - allow specifying con…

…tainerName and role (#2764)

Implementation of execution tests, task role and container name overrides + tests

packages/@aws-cdk/aws-ecs-patterns/lib/fargate/load-balanced-fargate-service.ts

@@ -1,4 +1,5 @@
 import ecs = require('@aws-cdk/aws-ecs');
+import iam = require('@aws-cdk/aws-iam');
 import cdk = require('@aws-cdk/cdk');
 import { LoadBalancedServiceBase, LoadBalancedServiceBaseProps } from '../base/load-balanced-service-base';
 
@@ -42,6 +43,34 @@ export interface LoadBalancedFargateServiceProps extends LoadBalancedServiceBase
  * @default 512
  */
  readonly memoryLimitMiB?: number;
+
+ /**
+ * Override for the Fargate Task Definition execution role
+ *
+ * @default - No value
+ */
+ readonly executionRole?: iam.IRole;
+
+ /**
+ * Override for the Fargate Task Definition task role
+ *
+ * @default - No value
+ */
+ readonly taskRole?: iam.IRole;
+
+ /**
+ * Override value for the container name
+ *
+ * @default - No value
+ */
+ readonly containerName?: string;
+
+ /**
+ * Override value for the service name
+ *
+ * @default - No value
+ */
+ readonly serviceName?: string;
 }
 
 /**
@@ -59,10 +88,14 @@ export class LoadBalancedFargateService extends LoadBalancedServiceBase {
 
  const taskDefinition = new ecs.FargateTaskDefinition(this, 'TaskDef', {
  memoryLimitMiB: props.memoryLimitMiB,
- cpu: props.cpu
+ cpu: props.cpu,
+ executionRole: props.executionRole !== undefined ? props.executionRole : undefined,
+ taskRole: props.taskRole !== undefined ? props.taskRole : undefined
  });
 
- const container = taskDefinition.addContainer('web', {
+ const containerName = props.containerName !== undefined ? props.containerName : 'web';
+
+ const container = taskDefinition.addContainer(containerName, {
  image: props.image,
  logging: this.logDriver,
  environment: props.environment
@@ -71,13 +104,13 @@ export class LoadBalancedFargateService extends LoadBalancedServiceBase {
  container.addPortMappings({
  containerPort: props.containerPort || 80,
  });
-
  const assignPublicIp = props.publicTasks !== undefined ? props.publicTasks : false;
  const service = new ecs.FargateService(this, "Service", {
  cluster: props.cluster,
  desiredCount: props.desiredCount || 1,
  taskDefinition,
- assignPublicIp
+ assignPublicIp,
+ serviceName: props.serviceName || undefined
  });
  this.service = service;