AWS CLI Command Reference

[ aws . ecs ]

create-daemon

Description

Creates a new daemon in the specified cluster and capacity providers. A daemon deploys cross-cutting software agents such as security monitoring, telemetry, and logging independently across your Amazon ECS infrastructure.

Amazon ECS deploys exactly one daemon task on each container instance of the specified capacity providers. When a container instance registers with the cluster, Amazon ECS automatically starts daemon tasks. Amazon ECS starts a daemon task before scheduling other tasks.

Daemons are essential for instance health - if a daemon task stops, Amazon ECS automatically drains and replaces that container instance.

Note

ECS Managed Daemons is only supported for Amazon ECS Managed Instances Capacity Providers.

See also: AWS API Documentation

Synopsis

  create-daemon
--daemon-name <value>
[--cluster-arn <value>]
--daemon-task-definition-arn <value>
--capacity-provider-arns <value>
[--deployment-configuration <value>]
[--tags <value>]
[--propagate-tags <value>]
[--enable-ecs-managed-tags | --no-enable-ecs-managed-tags]
[--enable-execute-command | --disable-execute-command]
[--client-token <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
[--cli-binary-format <value>]
[--no-cli-pager]
[--cli-auto-prompt]
[--no-cli-auto-prompt]
[--cli-error-format <value>]

Options

--daemon-name (string) [required]

The name of the daemon. Up to 255 letters (uppercase and lowercase), numbers, underscores, and hyphens are allowed.

--cluster-arn (string)

The Amazon Resource Name (ARN) of the cluster to create the daemon in.

--daemon-task-definition-arn (string) [required]

The Amazon Resource Name (ARN) of the daemon task definition to use for the daemon.

--capacity-provider-arns (list) [required]

The Amazon Resource Names (ARNs) of the capacity providers to associate with the daemon. The daemon deploys tasks on container instances managed by these capacity providers.

(string)

Syntax:

"string" "string" ...

--deployment-configuration (structure)

Optional deployment parameters that control how the daemon rolls out updates, including the drain percentage, alarm-based rollback, and bake time.

drainPercent -> (double)

The percentage of container instances to drain simultaneously during a daemon deployment. Valid values are between 0.0 and 100.0.

Constraints:

  • min: 0.0
  • max: 100.0

alarms -> (structure)

The CloudWatch alarm configuration for the daemon deployment. When alarms are triggered during a deployment, the deployment can be automatically rolled back.

alarmNames -> (list)

The CloudWatch alarm names to monitor during a daemon deployment.

(string)

enable -> (boolean)

Determines whether to use the CloudWatch alarm option in the daemon deployment process. The default value is false .

bakeTimeInMinutes -> (integer)

The amount of time (in minutes) to wait after a successful deployment step before proceeding. This allows time to monitor for issues before continuing. The default value is 0.

Shorthand Syntax:

drainPercent=double,alarms={alarmNames=[string,string],enable=boolean},bakeTimeInMinutes=integer

JSON Syntax:

{
  "drainPercent": double,
  "alarms": {
    "alarmNames": ["string", ...],
    "enable": true|false
  },
  "bakeTimeInMinutes": integer
}

--tags (list)

The metadata that you apply to the daemon to help you categorize and organize them. Each tag consists of a key and an optional value. You define both of them.

The following basic restrictions apply to tags:

  • Maximum number of tags per resource - 50
  • For each resource, each tag key must be unique, and each tag key can have only one value.
  • Maximum key length - 128 Unicode characters in UTF-8
  • Maximum value length - 256 Unicode characters in UTF-8
  • If your tagging schema is used across multiple services and resources, remember that other services may have restrictions on allowed characters. Generally allowed characters are: letters, numbers, and spaces representable in UTF-8, and the following characters: + - = . _ : / @.
  • Tag keys and values are case-sensitive.
  • Do not use aws: , AWS: , or any upper or lowercase combination of such as a prefix for either keys or values as it is reserved for Amazon Web Services use. You cannot edit or delete tag keys or values with this prefix. Tags with this prefix do not count against your tags per resource limit.

Constraints:

  • min: 0
  • max: 50

(structure)

The metadata that you apply to a resource to help you categorize and organize them. Each tag consists of a key and an optional value. You define them.

The following basic restrictions apply to tags:

  • Maximum number of tags per resource - 50
  • For each resource, each tag key must be unique, and each tag key can have only one value.
  • Maximum key length - 128 Unicode characters in UTF-8
  • Maximum value length - 256 Unicode characters in UTF-8
  • If your tagging schema is used across multiple services and resources, remember that other services may have restrictions on allowed characters. Generally allowed characters are: letters, numbers, and spaces representable in UTF-8, and the following characters: + - = . _ : / @.
  • Tag keys and values are case-sensitive.
  • Do not use aws: , AWS: , or any upper or lowercase combination of such as a prefix for either keys or values as it is reserved for Amazon Web Services use. You cannot edit or delete tag keys or values with this prefix. Tags with this prefix do not count against your tags per resource limit.

key -> (string)

One part of a key-value pair that make up a tag. A key is a general label that acts like a category for more specific tag values.

Constraints:

  • min: 1
  • max: 128
  • pattern: ([\p{L}\p{Z}\p{N}_.:/=+\-@]*)

value -> (string)

The optional part of a key-value pair that make up a tag. A value acts as a descriptor within a tag category (key).

Constraints:

  • min: 0
  • max: 256
  • pattern: ([\p{L}\p{Z}\p{N}_.:/=+\-@]*)

Shorthand Syntax:

key=string,value=string ...

JSON Syntax:

[
  {
    "key": "string",
    "value": "string"
  }
  ...
]

--propagate-tags (string)

Specifies whether to propagate the tags from the daemon to the daemon tasks. If you don’t specify a value, the tags aren’t propagated. You can only propagate tags to daemon tasks during task creation. To add tags to a task after task creation, use the TagResource API action.

Possible values:

  • DAEMON
  • NONE

--enable-ecs-managed-tags | --no-enable-ecs-managed-tags (boolean)

Specifies whether to turn on Amazon ECS managed tags for the tasks in the daemon. For more information, see Tagging your Amazon ECS resources in the Amazon Elastic Container Service Developer Guide .

--enable-execute-command | --disable-execute-command (boolean)

Determines whether the execute command functionality is turned on for the daemon. If true , the execute command functionality is turned on for all tasks in the daemon.

--client-token (string)

An identifier that you provide to ensure the idempotency of the request. It must be unique and is case sensitive. Up to 36 ASCII characters in the range of 33-126 (inclusive) are allowed.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

Global Options

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command’s default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination. If automatic pagination is disabled, the AWS CLI will only make one call, for the first page of results.

--output (string)

The formatting style for command output.

  • json
  • text
  • table
  • yaml
  • yaml-stream
  • off

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

  • on
  • off
  • auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.

--cli-binary-format (string)

The formatting style to be used for binary blobs. The default format is base64. The base64 format expects binary blobs to be provided as a base64 encoded string. The raw-in-base64-out format preserves compatibility with AWS CLI V1 behavior and binary values must be passed literally. When providing contents from a file that map to a binary blob fileb:// will always be treated as binary and use the file contents directly regardless of the cli-binary-format setting. When using file:// the file contents will need to properly formatted for the configured cli-binary-format.

  • base64
  • raw-in-base64-out

--no-cli-pager (boolean)

Disable cli pager for output.

--cli-auto-prompt (boolean)

Automatically prompt for CLI input parameters.

--no-cli-auto-prompt (boolean)

Disable automatically prompt for CLI input parameters.

--cli-error-format (string)

The formatting style for error output. By default, errors are displayed in enhanced format.

  • legacy
  • json
  • yaml
  • text
  • table
  • enhanced

Output

daemonArn -> (string)

The Amazon Resource Name (ARN) of the daemon.

status -> (string)

The status of the daemon.

Possible values:

  • ACTIVE
  • DELETE_IN_PROGRESS

createdAt -> (timestamp)

The Unix timestamp for the time when the daemon was created.

deploymentArn -> (string)

The Amazon Resource Name (ARN) of the initial daemon deployment. This deployment places daemon tasks on each container instance of the specified capacity providers.
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