Skip to content

ECS  >  Operations  >  list_task_definitions

list_task_definitions

Operation

list_task_definitions async

list_task_definitions(input: ListTaskDefinitionsInput, plugins: list[Plugin] | None = None) -> ListTaskDefinitionsOutput

Returns a list of task definitions that are registered to your account. You can filter the results by family name with the familyPrefix parameter or by status with the status parameter.

Parameters:

Name Type Description Default
input ListTaskDefinitionsInput

An instance of ListTaskDefinitionsInput.

required
plugins list[Plugin] | None

A list of callables that modify the configuration dynamically. Changes made by these plugins only apply for the duration of the operation execution and will not affect any other operation invocations.

None

Returns:

Type Description
ListTaskDefinitionsOutput

An instance of ListTaskDefinitionsOutput.

Input

ListTaskDefinitionsInput dataclass

Bases: _SerdeShape

Attributes

family_prefix class-attribute instance-attribute
family_prefix: str | None = ...

The full family name to filter the ListTaskDefinitions results with. Specifying a familyPrefix limits the listed task definitions to task definition revisions that belong to that family.

max_results class-attribute instance-attribute
max_results: int | None = ...

The maximum number of task definition results that ListTaskDefinitions returned in paginated output. When this parameter is used, ListTaskDefinitions only returns maxResults results in a single page along with a nextToken response element. The remaining results of the initial request can be seen by sending another ListTaskDefinitions request with the returned nextToken value. This value can be between 1 and 100. If this parameter isn't used, then ListTaskDefinitions returns up to 100 results and a nextToken value if applicable.

next_token class-attribute instance-attribute
next_token: str | None = ...

The nextToken value returned from a ListTaskDefinitions request indicating that more results are available to fulfill the request and further calls will be needed. If maxResults was provided, it is possible the number of results to be fewer than maxResults.

Note

This token should be treated as an opaque identifier that is only used to retrieve the next items in a list and not for other programmatic purposes.

sort class-attribute instance-attribute
sort: str | None = ...

The order to sort the results in. Valid values are ASC and DESC. By default, (ASC) task definitions are listed lexicographically by family name and in ascending numerical order by revision so that the newest task definitions in a family are listed last. Setting this parameter to DESC reverses the sort order on family name and revision. This is so that the newest task definitions in a family are listed first.

status class-attribute instance-attribute
status: str | None = ...

The task definition status to filter the ListTaskDefinitions results with. By default, only ACTIVE task definitions are listed. By setting this parameter to INACTIVE, you can view task definitions that are INACTIVE as long as an active task or service still references them. If you paginate the resulting output, be sure to keep the status value constant in each subsequent request.

Output

ListTaskDefinitionsOutput dataclass

Bases: _SerdeShape

Attributes

next_token class-attribute instance-attribute
next_token: str | None = ...

The nextToken value to include in a future ListTaskDefinitions request. When the results of a ListTaskDefinitions request exceed maxResults, this value can be used to retrieve the next page of results. This value is null when there are no more results to return.

response_metadata class-attribute instance-attribute
response_metadata: ResponseMetadata = ...

Metadata about the response that produced this output. Use this to recover the request identifiers a service's support team needs in order to investigate a call. Members of the metadata are individually optional.

task_definition_arns class-attribute instance-attribute
task_definition_arns: list[str] | None = ...

The list of task definition Amazon Resource Name (ARN) entries for the ListTaskDefinitions request.