# DeleteTaskDefinitions
Deletes one or more task definitions.
You must deregister a task definition revision before you delete it. For more information, see [DeregisterTaskDefinition](https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_DeregisterTaskDefinition.html).
When you delete a task definition revision, it is immediately transitions from the `INACTIVE` to `DELETE_IN_PROGRESS`. Existing tasks and services that reference a `DELETE_IN_PROGRESS` task definition revision continue to run without disruption. Existing services that reference a `DELETE_IN_PROGRESS` task definition revision can still scale up or down by modifying the service's desired count.
You can't use a `DELETE_IN_PROGRESS` task definition revision to run new tasks or create new services. You also can't update an existing service to reference a `DELETE_IN_PROGRESS` task definition revision.
A task definition revision will stay in `DELETE_IN_PROGRESS` status until all the associated tasks and services have been terminated.
When you delete all `INACTIVE` task definition revisions, the task definition name is not displayed in the console and not returned in the API. If a task definition revisions are in the `DELETE_IN_PROGRESS` state, the task definition name is displayed in the console and returned in the API. The task definition name is retained by Amazon ECS and the revision is incremented the next time you create a task definition with that name.
## Request Syntax
```
{
"taskDefinitions": [ "string" ]
}
```
## Request Parameters
For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).
The request accepts the following data in JSON format.
** [taskDefinitions](#API_DeleteTaskDefinitions_RequestSyntax) **
The `family` and `revision` (`family:revision`) or full Amazon Resource Name (ARN) of the task definition to delete. You must specify a `revision`.
You can specify up to 10 task definitions as a comma separated list.
Type: Array of strings
Required: Yes
## Response Syntax
```
{
"failures": [
{
"arn": "string",
"detail": "string",
"reason": "string"
}
],
"taskDefinitions": [
{
"compatibilities": [ "string" ],
"containerDefinitions": [
{
"command": [ "string" ],
"cpu": number,
"credentialSpecs": [ "string" ],
"dependsOn": [
{
"condition": "string",
"containerName": "string"
}
],
"disableNetworking": boolean,
"dnsSearchDomains": [ "string" ],
"dnsServers": [ "string" ],
"dockerLabels": {
"string" : "string"
},
"dockerSecurityOptions": [ "string" ],
"entryPoint": [ "string" ],
"environment": [
{
"name": "string",
"value": "string"
}
],
"environmentFiles": [
{
"type": "string",
"value": "string"
}
],
"essential": boolean,
"extraHosts": [
{
"hostname": "string",
"ipAddress": "string"
}
],
"firelensConfiguration": {
"options": {
"string" : "string"
},
"type": "string"
},
"healthCheck": {
"command": [ "string" ],
"interval": number,
"retries": number,
"startPeriod": number,
"timeout": number
},
"hostname": "string",
"image": "string",
"interactive": boolean,
"links": [ "string" ],
"linuxParameters": {
"capabilities": {
"add": [ "string" ],
"drop": [ "string" ]
},
"devices": [
{
"containerPath": "string",
"hostPath": "string",
"permissions": [ "string" ]
}
],
"initProcessEnabled": boolean,
"maxSwap": number,
"sharedMemorySize": number,
"swappiness": number,
"tmpfs": [
{
"containerPath": "string",
"mountOptions": [ "string" ],
"size": number
}
]
},
"logConfiguration": {
"logDriver": "string",
"options": {
"string" : "string"
},
"secretOptions": [
{
"name": "string",
"valueFrom": "string"
}
]
},
"memory": number,
"memoryReservation": number,
"mountPoints": [
{
"containerPath": "string",
"readOnly": boolean,
"sourceVolume": "string"
}
],
"name": "string",
"portMappings": [
{
"appProtocol": "string",
"containerPort": number,
"containerPortRange": "string",
"hostPort": number,
"name": "string",
"protocol": "string"
}
],
"privileged": boolean,
"pseudoTerminal": boolean,
"readonlyRootFilesystem": boolean,
"repositoryCredentials": {
"credentialsParameter": "string"
},
"resourceRequirements": [
{
"type": "string",
"value": "string"
}
],
"restartPolicy": {
"enabled": boolean,
"ignoredExitCodes": [ number ],
"restartAttemptPeriod": number
},
"secrets": [
{
"name": "string",
"valueFrom": "string"
}
],
"startTimeout": number,
"stopTimeout": number,
"systemControls": [
{
"namespace": "string",
"value": "string"
}
],
"ulimits": [
{
"hardLimit": number,
"name": "string",
"softLimit": number
}
],
"user": "string",
"versionConsistency": "string",
"volumesFrom": [
{
"readOnly": boolean,
"sourceContainer": "string"
}
],
"workingDirectory": "string"
}
],
"cpu": "string",
"deleteRequestedAt": number,
"deregisteredAt": number,
"enableFaultInjection": boolean,
"ephemeralStorage": {
"sizeInGiB": number
},
"executionRoleArn": "string",
"family": "string",
"inferenceAccelerators": [
{
"deviceName": "string",
"deviceType": "string"
}
],
"ipcMode": "string",
"memory": "string",
"networkMode": "string",
"pidMode": "string",
"placementConstraints": [
{
"expression": "string",
"type": "string"
}
],
"proxyConfiguration": {
"containerName": "string",
"properties": [
{
"name": "string",
"value": "string"
}
],
"type": "string"
},
"registeredAt": number,
"registeredBy": "string",
"requiresAttributes": [
{
"name": "string",
"targetId": "string",
"targetType": "string",
"value": "string"
}
],
"requiresCompatibilities": [ "string" ],
"revision": number,
"runtimePlatform": {
"cpuArchitecture": "string",
"operatingSystemFamily": "string"
},
"status": "string",
"taskDefinitionArn": "string",
"taskRoleArn": "string",
"volumes": [
{
"configuredAtLaunch": boolean,
"dockerVolumeConfiguration": {
"autoprovision": boolean,
"driver": "string",
"driverOpts": {
"string" : "string"
},
"labels": {
"string" : "string"
},
"scope": "string"
},
"efsVolumeConfiguration": {
"authorizationConfig": {
"accessPointId": "string",
"iam": "string"
},
"fileSystemId": "string",
"rootDirectory": "string",
"transitEncryption": "string",
"transitEncryptionPort": number
},
"fsxWindowsFileServerVolumeConfiguration": {
"authorizationConfig": {
"credentialsParameter": "string",
"domain": "string"
},
"fileSystemId": "string",
"rootDirectory": "string"
},
"host": {
"sourcePath": "string"
},
"name": "string"
}
]
}
]
}
```
## Response Elements
If the action is successful, the service sends back an HTTP 200 response.
The following data is returned in JSON format by the service.
** [failures](#API_DeleteTaskDefinitions_ResponseSyntax) **
Any failures associated with the call.
Type: Array of [Failure](API_Failure.md) objects
** [taskDefinitions](#API_DeleteTaskDefinitions_ResponseSyntax) **
The list of deleted task definitions.
Type: Array of [TaskDefinition](API_TaskDefinition.md) objects
## Errors
For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).
** AccessDeniedException **
You don't have authorization to perform the requested action.
** message **
Message that describes the cause of the exception.
HTTP Status Code: 400
** ClientException **
These errors are usually caused by a client action. This client action might be using an action or resource on behalf of a user that doesn't have permissions to use the action or resource. Or, it might be specifying an identifier that isn't valid.
** message **
Message that describes the cause of the exception.
HTTP Status Code: 400
** InvalidParameterException **
The specified parameter isn't valid. Review the available parameters for the API request.
For more information about service event errors, see [Amazon ECS service event messages](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/service-event-messages-list.html).
** message **
Message that describes the cause of the exception.
HTTP Status Code: 400
** ServerException **
These errors are usually caused by a server issue.
** message **
Message that describes the cause of the exception.
HTTP Status Code: 500
## Examples
In the following example or examples, the Authorization header contents (`AUTHPARAMS`) must be replaced with an AWS Signature Version 4 signature. For more information, see [Signature Version 4 Signing Process](https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html) in the * AWS General Reference*.
You only need to learn how to sign HTTP requests if you intend to create them manually. When you use the [AWS Command Line Interface](http://aws.amazon.com/cli/) or one of the [AWS SDKs](http://aws.amazon.com/tools/) to make requests to AWS, these tools automatically sign the requests for you, with the access key that you specify when you configure the tools. When you use these tools, you don't have to sign requests yourself.
### Example
This example request deletes the task definition named `Example-task-definition:1`.
#### Sample Request
```
POST / HTTP/1.1
Host: ecs.us-east-1.amazonaws.com
Accept-Encoding: identity
Content-Length: 25
X-Amz-Target: AmazonEC2ContainerServiceV20141113.DeleteTaskDefinitions
X-Amz-Date: 20150429T170952Z
Content-Type: application/x-amz-json-1.1
Authorization: AUTHPARAMS
{
"taskDefinitions": [
"Example-task-definition:1"
]
}
```
#### Sample Response
```
HTTP/1.1 200 OK
Server: Server
Date: Wed, 7 Dec 2022 17:09:54 GMT
Content-Type: application/x-amz-json-1.1
Content-Length: 211
Connection: keep-alive
x-amzn-RequestId: 123a4b56-7c89-01d2-3ef4-example5678f
{
"failures": [],
"taskDefinitions": [
{
"containerDefinitions": [
{
"command": [
"apt-get update; apt-get install stress; while true; do stress --cpu $(( RANDOM % 4 )) -t $(( RANDOM % 10 )); done"
],
"cpu": 50,
"entryPoint": [
"bash",
"-c"
],
"environment": [],
"essential": true,
"image": "public.ecr.aws/docker/library/ubuntu:latest",
"memory": 100,
"mountPoints": [],
"name": "wave",
"portMappings": [],
"volumesFrom": []
}
],
"family": "cpu-wave",
"revision": 1,
"status": "DELETE_IN_PROGRESS",
"taskDefinitionArn": "arn:aws:ecs:us-east-1:012345678910:task-definition/Example-task-definition:1",
"volumes": []
}
]
}
```
## See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following:
+ [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/ecs-2014-11-13/DeleteTaskDefinitions)
+ [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/ecs-2014-11-13/DeleteTaskDefinitions)
+ [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ecs-2014-11-13/DeleteTaskDefinitions)
+ [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/ecs-2014-11-13/DeleteTaskDefinitions)
+ [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ecs-2014-11-13/DeleteTaskDefinitions)
+ [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/ecs-2014-11-13/DeleteTaskDefinitions)
+ [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/ecs-2014-11-13/DeleteTaskDefinitions)
+ [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/ecs-2014-11-13/DeleteTaskDefinitions)
+ [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/ecs-2014-11-13/DeleteTaskDefinitions)
+ [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ecs-2014-11-13/DeleteTaskDefinitions)