71 lines
3.6 KiB
YAML
71 lines
3.6 KiB
YAML
groups:
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- id: faas_resource
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prefix: faas
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brief: >
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A serverless instance.
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attributes:
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- id: name
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type: string
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required: always
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brief: >
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The name of the single function that this runtime instance executes.
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note:
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This is the name of the function as configured/deployed on the FaaS
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platform and is usually different from the name of the callback
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function (which may be stored in the
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[`code.namespace`/`code.function`](../../trace/semantic_conventions/span-general.md#source-code-attributes)
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span attributes).
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examples: ['my-function']
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- id: id
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type: string
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brief: >
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The unique ID of the single function that this runtime instance executes.
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note: |
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Depending on the cloud provider, use:
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* **AWS Lambda:** The function [ARN](https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html).
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Take care not to use the "invoked ARN" directly but replace any
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[alias suffix](https://docs.aws.amazon.com/lambda/latest/dg/configuration-aliases.html) with the resolved function version, as the same runtime instance may be invokable with multiple
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different aliases.
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* **GCP:** The [URI of the resource](https://cloud.google.com/iam/docs/full-resource-names)
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* **Azure:** The [Fully Qualified Resource ID](https://docs.microsoft.com/en-us/rest/api/resources/resources/get-by-id).
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On some providers, it may not be possible to determine the full ID at startup,
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which is why this field cannot be made required. For example, on AWS the account ID
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part of the ARN is not available without calling another AWS API
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which may be deemed too slow for a short-running lambda function.
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As an alternative, consider setting `faas.id` as a span attribute instead.
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examples: ['arn:aws:lambda:us-west-2:123456789012:function:my-function']
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- id: version
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type: string
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brief: The immutable version of the function being executed.
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note: |
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Depending on the cloud provider and platform, use:
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* **AWS Lambda:** The [function version](https://docs.aws.amazon.com/lambda/latest/dg/configuration-versions.html)
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(an integer represented as a decimal string).
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* **Google Cloud Run:** The [revision](https://cloud.google.com/run/docs/managing/revisions)
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(i.e., the function name plus the revision suffix).
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* **Google Cloud Functions:** The value of the
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[`K_REVISION` environment variable](https://cloud.google.com/functions/docs/env-var#runtime_environment_variables_set_automatically).
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* **Azure Functions:** Not applicable. Do not set this attribute.
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examples: ['26', 'pinkfroid-00002']
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- id: instance
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type: string
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brief: >
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The execution environment ID as a string, that will be potentially reused
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for other invocations to the same function/function version.
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note: >
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* **AWS Lambda:** Use the (full) log stream name.
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examples: ['2021/06/28/[$LATEST]2f399eb14537447da05ab2a2e39309de']
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- id: max_memory
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type: int
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brief: >
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The amount of memory available to the serverless function in MiB.
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note: >
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It's recommended to set this attribute since e.g. too little memory can easily
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stop a Java AWS Lambda function from working correctly.
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On AWS Lambda, the environment variable `AWS_LAMBDA_FUNCTION_MEMORY_SIZE`
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provides this information.
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examples: 128
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