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**Example 1: To start a new task**
The following ``start-task`` example starts a task using the latest revision of the ``sleep360`` task definition on the specified container instance in the default cluster. ::
aws ecs start-task \
--task-definition sleep360 \
--container-instances 765936fadbdd46b5991a4bd70c2a43d4
Output::
{
"tasks": [
{
"taskArn": "arn:aws:ecs:us-west-2:123456789012:task/default/666fdccc2e2d4b6894dd422f4eeee8f8",
"clusterArn": "arn:aws:ecs:us-west-2:123456789012:cluster/default",
"taskDefinitionArn": "arn:aws:ecs:us-west-2:123456789012:task-definition/sleep360:3",
"containerInstanceArn": "arn:aws:ecs:us-west-2:123456789012:container-instance/default/765936fadbdd46b5991a4bd70c2a43d4",
"overrides": {
"containerOverrides": [
{
"name": "sleep"
}
]
},
"lastStatus": "PENDING",
"desiredStatus": "RUNNING",
"cpu": "128",
"memory": "128",
"containers": [
{
"containerArn": "arn:aws:ecs:us-west-2:123456789012:container/75f11ed4-8a3d-4f26-a33b-ad1db9e02d41",
"taskArn": "arn:aws:ecs:us-west-2:123456789012:task/default/666fdccc2e2d4b6894dd422f4eeee8f8",
"name": "sleep",
"lastStatus": "PENDING",
"networkInterfaces": [],
"cpu": "10",
"memory": "10"
}
],
"version": 1,
"createdAt": 1563421494.186,
"group": "family:sleep360",
"launchType": "EC2",
"attachments": [],
"tags": []
}
],
"failures": []
}
For more information, see `Schedule your containers on Amazon ECS <https://docs.aws.amazon.com/AmazonECS/latest/developerguide/scheduling_tasks.html>`__ in the *Amazon ECS Developer Guide*.
**Example 2: To configure an Amazon EBS volume at task start**
The following ``start-task`` example configures an encrypted Amazon EBS volume for a task on the specified container instance. You must have an Amazon ECS infrastructure role configured with the ``AmazonECSInfrastructureRolePolicyForVolumes`` managed policy attached. You must specify a task definition with the same volume name as in the ``start-task`` request. This example uses the ``--cli-input-json`` option and a JSON input file called ``ebs.json`` with the following content. ::
aws ecs start-task \
--cli-input-json file://ebs.json \
--container-instances 765936fadbdd46b5991a4bd70c2a43d4
Contents of ``ebs.json``::
{
"cluster": "default",
"taskDefinition": "mytaskdef",
"networkConfiguration":{
"awsvpcConfiguration":{
"assignPublicIp": "ENABLED",
"securityGroups": ["sg-12344321"],
"subnets":["subnet-12344321"]
}
},
"volumeConfigurations": [
{
"name": "myEBSVolume",
"managedEBSVolume": {
"volumeType": "gp3",
"sizeInGiB": 100,
"roleArn":"arn:aws:iam::123456789012:role/ecsInfrastructureRole",
"encrypted": true,
"kmsKeyId": "arn:aws:kms:region:123456789012:key/1234abcd-12ab-34cd-56ef-1234567890ab"
}
}
]
}
Output::
{
"tasks": [
{
"attachments": [
{
"id": "aea29489-9dcd-49f1-8164-4d91566e1113",
"type": "ElasticNetworkInterface",
"status": "PRECREATED",
"details": [
{
"name": "subnetId",
"value": "subnet-12344321"
}
]
},
{
"id": "f29e1222-9a1e-410f-b499-a12a7cd6d42e",
"type": "AmazonElasticBlockStorage",
"status": "CREATED",
"details": [
{
"name": "roleArn",
"value": "arn:aws:iam::123456789012:role/ecsInfrastructureRole"
},
{
"name": "volumeName",
"value": "myEBSVolume"
},
{
"name": "deleteOnTermination",
"value": "true"
}
]
}
],
"attributes": [
{
"name": "ecs.cpu-architecture",
"value": "arm64"
}
],
"availabilityZone": "us-west-2c",
"clusterArn": "arn:aws:ecs:us-west-2:123456789012:cluster/default",
"containerInstanceArn": "arn:aws:ecs:us-west-2:123456789012:container-instance/default/765936fadbdd46b5991a4bd70c2a43d4",
"containers": [
{
"containerArn": "arn:aws:ecs:us-west-2:123456789012:container/default/bb122ace3ed84add92c00a351a03c69e/a4a9ed10-51c7-4567-9653-50e71b94f867",
"taskArn": "arn:aws:ecs:us-west-2:123456789012:task/default/bb122ace3ed84add92c00a351a03c69e",
"name": "container-using-ebs",
"image": "amazonlinux:2",
"lastStatus": "PENDING",
"networkInterfaces": [],
"cpu": "0"
}
],
"cpu": "1024",
"createdAt": "2025-01-23T14:51:05.191000-06:00",
"desiredStatus": "RUNNING",
"enableExecuteCommand": false,
"group": "family:mytaskdef",
"lastStatus": "PROVISIONING",
"launchType": "EC2",
"memory": "3072",
"overrides": {
"containerOverrides": [
{
"name": "container-using-ebs"
}
],
"inferenceAcceleratorOverrides": []
},
"tags": [],
"taskArn": "arn:aws:ecs:us-west-2:123456789012:task/default/bb122ace3ed84add92c00a351a03c69e",
"taskDefinitionArn": "arn:aws:ecs:us-west-2:123456789012:task-definition/mytaskdef:4",
"version": 1
}
],
"failures": []
}
For more information, see `Use Amazon EBS volumes with Amazon ECS <https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ebs-volumes.html>`__ in the *Amazon ECS Developer Guide*.
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