# ScheduledFargateTaskProps The properties for the ScheduledFargateTask task. Extends: ScheduledFargateTaskProps Extends: ScheduledTaskBaseProps, FargateServiceBaseProps Used as props by: ScheduledFargateTask - Source: [`aws-ecs-patterns/lib/fargate/scheduled-fargate-task.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/aws-ecs-patterns/lib/fargate/scheduled-fargate-task.ts#L13) - Type last changed: v2.38.0 · 17 Aug 2022 ## Example ```ts const vpc = new ec2.Vpc(this, 'Vpc', { maxAzs: 1 }); const cluster = new ecs.Cluster(this, 'EcsCluster', { vpc }); const scheduledFargateTask = new ecsPatterns.ScheduledFargateTask(this, 'ScheduledFargateTask', { cluster, scheduledFargateTaskImageOptions: { image: ecs.ContainerImage.fromRegistry('amazon/amazon-ecs-sample'), memoryLimitMiB: 512, }, schedule: appscaling.Schedule.expression('rate(1 minute)'), tags: [ { key: 'my-tag', value: 'my-tag-value', }, ], }); ``` ## Properties - `circuitBreaker`: [DeploymentCircuitBreaker](/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.DeploymentCircuitBreaker.html) = disabled — Whether to enable the deployment circuit breaker. If this property is defined, circuit breaker will be implicitly enabled. - `cluster`: [ICluster](/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.ICluster.html) — The name of the cluster that hosts the service. **Default:** create a new cluster; if both cluster and vpc are omitted, a new VPC will be created for you. If a cluster is specified, the vpc construct should be omitted. Alternatively, you can omit both cluster and vpc. - `cpu`: number = 256 — The number of cpu units used by the task. Valid values, which determines your range of valid values for the memory parameter: 256 (.25 vCPU) - Available memory values: 0.5GB, 1GB, 2GB 512 (.5 vCPU) - Available memory values: 1GB, 2GB, 3GB, 4GB 1024 (1 vCPU) - Available memory values: 2GB, 3GB, 4GB, 5GB, 6GB, 7GB, 8GB 2048 (2 vCPU) - Available memory values: Between 4GB and 16GB in 1GB increments 4096 (4 vCPU) - Available memory values: Between 8GB and 30GB in 1GB increments 8192 (8 vCPU) - Available memory values: Between 16GB and 60GB in 4GB increments 16384 (16 vCPU) - Available memory values: Between 32GB and 120GB in 8GB increments This default is set in the underlying FargateTaskDefinition construct. - `desiredTaskCount`: number = 1 — The desired number of instantiations of the task definition to keep running on the service. - `enabled`: boolean = true — Indicates whether the rule is enabled. - `ephemeralStorageGiB`: number — The amount (in GiB) of ephemeral storage to be allocated to the task. **Default:** Undefined, in which case, the task will receive 20GiB ephemeral storage. The minimum supported value is `21` GiB and the maximum supported value is `200` GiB. Only supported in Fargate platform version 1.4.0 or later. - `memoryLimitMiB`: number = 512 — The amount (in MiB) of memory used by the task. This field is required and you must use one of the following values, which determines your range of valid values for the cpu parameter: 512 (0.5 GB), 1024 (1 GB), 2048 (2 GB) - Available cpu values: 256 (.25 vCPU) 1024 (1 GB), 2048 (2 GB), 3072 (3 GB), 4096 (4 GB) - Available cpu values: 512 (.5 vCPU) 2048 (2 GB), 3072 (3 GB), 4096 (4 GB), 5120 (5 GB), 6144 (6 GB), 7168 (7 GB), 8192 (8 GB) - Available cpu values: 1024 (1 vCPU) Between 4096 (4 GB) and 16384 (16 GB) in increments of 1024 (1 GB) - Available cpu values: 2048 (2 vCPU) Between 8192 (8 GB) and 30720 (30 GB) in increments of 1024 (1 GB) - Available cpu values: 4096 (4 vCPU) Between 16384 (16 GB) and 61440 (60 GB) in increments of 4096 (4 GB) - Available cpu values: 8192 (8 vCPU) Between 32768 (32 GB) and 122880 (120 GB) in increments of 8192 (8 GB) - Available cpu values: 16384 (16 vCPU) This default is set in the underlying FargateTaskDefinition construct. - `platformVersion`: [FargatePlatformVersion](/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.FargatePlatformVersion.html) = Latest — The platform version on which to run your service. If one is not specified, the LATEST platform version is used by default. For more information, see [AWS Fargate Platform Versions](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/platform_versions.html) in the Amazon Elastic Container Service Developer Guide. - `propagateTags`: [PropagatedTagSource](/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.PropagatedTagSource.html) — Specifies whether to propagate the tags from the task definition to the task. **Default:** Tags will not be propagated If no value is specified, the tags are not propagated. - `ruleName`: string — A name for the rule. **Default:** AWS CloudFormation generates a unique physical ID and uses that ID for the rule name. For more information, see [Name Type](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-name.html). - `runtimePlatform`: [RuntimePlatform](/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.RuntimePlatform.html) — The runtime platform of the task definition. **Default:** If the property is undefined, `operatingSystemFamily` is LINUX and `cpuArchitecture` is X86_64 - `schedule`: [Schedule](/cdk/api/v2/docs/aws-cdk-lib.aws_applicationautoscaling.Schedule.html) (required) — The schedule or rate (frequency) that determines when CloudWatch Events runs the rule. For more information, see [Schedule Expression Syntax for Rules](https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/ScheduledEvents.html) in the Amazon CloudWatch User Guide. - `scheduledFargateTaskDefinitionOptions`: [ScheduledFargateTaskDefinitionOptions](/cdk/api/v2/docs/aws-cdk-lib.aws_ecs_patterns.ScheduledFargateTaskDefinitionOptions.html) = none — The properties to define if using an existing TaskDefinition in this construct. ScheduledFargateTaskDefinitionOptions or ScheduledFargateTaskImageOptions must be defined, but not both. - `scheduledFargateTaskImageOptions`: [ScheduledFargateTaskImageOptions](/cdk/api/v2/docs/aws-cdk-lib.aws_ecs_patterns.ScheduledFargateTaskImageOptions.html) = none — The properties to define if the construct is to create a TaskDefinition. ScheduledFargateTaskDefinitionOptions or ScheduledFargateTaskImageOptions must be defined, but not both. - `securityGroups`: [ISecurityGroup](/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.ISecurityGroup.html)[] — Existing security groups to use for your service. **Default:** a new security group will be created. - `subnetSelection`: [SubnetSelection](/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.SubnetSelection.html) — In what subnets to place the task's ENIs. **Default:** Private subnets (Only applicable in case the TaskDefinition is configured for AwsVpc networking) - `tags`: [Tag](/cdk/api/v2/docs/aws-cdk-lib.aws_events_targets.Tag.html)[] — The metadata that you apply to the task to help you categorize and organize them. **Default:** No tags are applied to the task Each tag consists of a key and an optional value, both of which you define. - `taskDefinition`: [FargateTaskDefinition](/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.FargateTaskDefinition.html) = none — The task definition to use for tasks in the service. TaskDefinition or TaskImageOptions must be specified, but not both. [disable-awslint:ref-via-interface] - `vpc`: [IVpc](/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.IVpc.html) — The VPC where the container instances will be launched or the elastic network interfaces (ENIs) will be deployed. **Default:** uses the VPC defined in the cluster or creates a new VPC. If a vpc is specified, the cluster construct should be omitted. Alternatively, you can omit both vpc and cluster.