class ScheduledEc2Task (construct)

Language	Type name
.NET	`Amazon.CDK.AWS.ECS.Patterns.ScheduledEc2Task`
Java	`software.amazon.awscdk.services.ecs.patterns.ScheduledEc2Task`
Python	`aws_cdk.aws_ecs_patterns.ScheduledEc2Task`
TypeScript (source)	`@aws-cdk/aws-ecs-patterns` » `ScheduledEc2Task`

Implements IConstruct, IConstruct, IDependable

A scheduled EC2 task that will be initiated off of CloudWatch Events.

Example

// Instantiate an Amazon EC2 Task to run at a scheduled interval
declare const cluster: ecs.Cluster;
const ecsScheduledTask = new ecsPatterns.ScheduledEc2Task(this, 'ScheduledTask', {
  cluster,
  scheduledEc2TaskImageOptions: {
    image: ecs.ContainerImage.fromRegistry('amazon/amazon-ecs-sample'),
    memoryLimitMiB: 256,
    environment: { name: 'TRIGGER', value: 'CloudWatch Events' },
  },
  schedule: appscaling.Schedule.expression('rate(1 minute)'),
  enabled: true,
  ruleName: 'sample-scheduled-task-rule',
});

Initializer

new ScheduledEc2Task(scope: Construct, id: string, props: ScheduledEc2TaskProps)

Parameters

scope Construct
id string
props ScheduledEc2TaskProps

Constructs a new instance of the ScheduledEc2Task class.

Construct Props

Name	Type	Description
schedule	`Schedule`	The schedule or rate (frequency) that determines when CloudWatch Events runs the rule.
cluster?	`ICluster`	The name of the cluster that hosts the service.
desiredTaskCount?	`number`	The desired number of instantiations of the task definition to keep running on the service.
enabled?	`boolean`	Indicates whether the rule is enabled.
ruleName?	`string`	A name for the rule.
scheduledEc2TaskDefinitionOptions?	`ScheduledEc2TaskDefinitionOptions`	The properties to define if using an existing TaskDefinition in this construct.
scheduledEc2TaskImageOptions?	`ScheduledEc2TaskImageOptions`	The properties to define if the construct is to create a TaskDefinition.
securityGroups?	`ISecurityGroup[]`	Existing security groups to use for your service.
subnetSelection?	`SubnetSelection`	In what subnets to place the task's ENIs.
vpc?	`IVpc`	The VPC where the container instances will be launched or the elastic network interfaces (ENIs) will be deployed.

schedule

Type: Schedule

The schedule or rate (frequency) that determines when CloudWatch Events runs the rule.

For more information, see Schedule Expression Syntax for Rules in the Amazon CloudWatch User Guide.

cluster?

Type: ICluster (optional, default: create a new cluster; if both cluster and vpc are omitted, a new VPC will be created for you.)

The name of the cluster that hosts the service.

If a cluster is specified, the vpc construct should be omitted. Alternatively, you can omit both cluster and vpc.

desiredTaskCount?

Type: number (optional, default: 1)

The desired number of instantiations of the task definition to keep running on the service.

enabled?

Type: boolean (optional, default: true)

Indicates whether the rule is enabled.

ruleName?

Type: string (optional, default: AWS CloudFormation generates a unique physical ID and uses that ID for the rule name. For more information, see Name Type.)

A name for the rule.

scheduledEc2TaskDefinitionOptions?

Type: ScheduledEc2TaskDefinitionOptions (optional, default: none)

The properties to define if using an existing TaskDefinition in this construct.

ScheduledEc2TaskDefinitionOptions or ScheduledEc2TaskImageOptions must be defined, but not both.

scheduledEc2TaskImageOptions?

Type: ScheduledEc2TaskImageOptions (optional, default: none)

The properties to define if the construct is to create a TaskDefinition.

ScheduledEc2TaskDefinitionOptions or ScheduledEc2TaskImageOptions must be defined, but not both.

securityGroups?

Type: ISecurityGroup[] (optional, default: a new security group will be created.)

Existing security groups to use for your service.

subnetSelection?

Type: SubnetSelection (optional, default: Private subnets)

In what subnets to place the task's ENIs.

(Only applicable in case the TaskDefinition is configured for AwsVpc networking)

vpc?

Type: IVpc (optional, default: uses the VPC defined in the cluster or creates a new VPC.)

The VPC where the container instances will be launched or the elastic network interfaces (ENIs) will be deployed.

If a vpc is specified, the cluster construct should be omitted. Alternatively, you can omit both vpc and cluster.

Properties

Name	Type	Description
cluster	`ICluster`	The name of the cluster that hosts the service.
desiredTaskCount	`number`	The desired number of instantiations of the task definition to keep running on the service.
eventRule	`Rule`	The CloudWatch Events rule for the service.
node	`ConstructNode`	The construct tree node associated with this construct.
subnetSelection	`SubnetSelection`	In what subnets to place the task's ENIs.
task	`EcsTask`	The ECS task in this construct.
taskDefinition	`Ec2TaskDefinition`	The EC2 task definition in this construct.