create-logger-definition¶

Description¶

Creates a logger definition. You may provide the initial version of the logger definition now or use ‘’CreateLoggerDefinitionVersion’’ at a later time.

Synopsis¶

  create-logger-definition
[--amzn-client-token <value>]
[--initial-version <value>]
[--name <value>]
[--tags <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options¶

--amzn-client-token (string) A client token used to correlate requests and responses.

--initial-version (structure) Information about the initial version of the logger definition.Loggers -> (list)

A list of loggers.

(structure)

Information about a logger

Component -> (string)

The component that will be subject to logging.

Id -> (string)

A descriptive or arbitrary ID for the logger. This value must be unique within the logger definition version. Max length is 128 characters with pattern ‘’[a-zA-Z0-9:_-]+’’.

Level -> (string)

The level of the logs.

Space -> (integer)

The amount of file space, in KB, to use if the local file system is used for logging purposes.

Type -> (string)

The type of log output which will be used.

Shorthand Syntax:

Loggers=[{Component=string,Id=string,Level=string,Space=integer,Type=string},{Component=string,Id=string,Level=string,Space=integer,Type=string}]

JSON Syntax:

{
  "Loggers": [
    {
      "Component": "GreengrassSystem"|"Lambda",
      "Id": "string",
      "Level": "DEBUG"|"INFO"|"WARN"|"ERROR"|"FATAL",
      "Space": integer,
      "Type": "FileSystem"|"AWSCloudWatch"
    }
    ...
  ]
}

--name (string) The name of the logger definition.

--tags (map) Tag(s) to add to the new resource.key -> (string)

value -> (string)

Shorthand Syntax:

KeyName1=string,KeyName2=string

JSON Syntax:

{"string": "string"
  ...}

--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.

See ‘aws help’ for descriptions of global parameters.

Examples¶

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To create a logger definition

The following create-logger-definition example creates a logger definition that contains an initial logger definition version. The initial version defines three logging configurations: 1) system component logs on the file system of the core device, 2) user-defined Lambda function logs on the file system of the core device, and 3) user-defined Lambda function logs in Amazon CloudWatch Logs. Note: For CloudWatch Logs integration, your group role must grant appropriate permissions.

aws greengrass create-logger-definition \
    --name "LoggingConfigs" \
    --initial-version "{\"Loggers\":[{\"Id\":\"1\",\"Component\":\"GreengrassSystem\",\"Level\":\"ERROR\",\"Space\":10240,\"Type\":\"FileSystem\"},{\"Id\":\"2\",\"Component\":\"Lambda\",\"Level\":\"INFO\",\"Space\":10240,\"Type\":\"FileSystem\"},{\"Id\":\"3\",\"Component\":\"Lambda\",\"Level\":\"INFO\",\"Type\":\"AWSCloudWatch\"}]}"

Output:

{
    "LatestVersionArn": "arn:aws:greengrass:us-west-2:123456789012:/greengrass/definition/loggers/a454b62a-5d56-4ca9-bdc4-8254e1662cb0/versions/de1d9854-1588-4525-b25e-b378f60f2322",
    "Name": "LoggingConfigs",
    "LastUpdatedTimestamp": "2019-07-23T23:52:17.165Z",
    "LatestVersion": "de1d9854-1588-4525-b25e-b378f60f2322",
    "CreationTimestamp": "2019-07-23T23:52:17.165Z",
    "Id": "a454b62a-5d56-4ca9-bdc4-8254e1662cb0",
    "Arn": "arn:aws:greengrass:us-west-2:123456789012:/greengrass/definition/loggers/a454b62a-5d56-4ca9-bdc4-8254e1662cb0"
}

For more information, see Monitoring with AWS IoT Greengrass Logs in the AWS IoT Greengrass Developer Guide.

Output¶

Arn -> (string)

The ARN of the definition.

CreationTimestamp -> (string)

The time, in milliseconds since the epoch, when the definition was created.

Id -> (string)

The ID of the definition.

LastUpdatedTimestamp -> (string)

The time, in milliseconds since the epoch, when the definition was last updated.

LatestVersion -> (string)

The ID of the latest version associated with the definition.

LatestVersionArn -> (string)

The ARN of the latest version associated with the definition.

Name -> (string)

The name of the definition.

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