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• Ingest with ease, store without limits: Axiom’s next-generation datastore enables ingesting petabytes of data with ultimate efficiency. Ship logs from Kubernetes, AWS, Azure, Google Cloud, DigitalOcean, Nomad, and others.
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For more information, check out the official documentation and our community Discord.

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The axiom-lambda-extension can send logs and platform events of your Lambda function to Axiom. Axiom will detect the extension and provide you with quick filters and a dashboard.

With the Axiom Lambda extension, you can forget about the extra configuration of CloudWatch and subscription filters.

Note: After the Axiom Lambda extension is installed, the Lambda service will still send logs to CloudWatch Logs.

To disable the CloudWatch logging, follow the steps below:

• Install the Axiom Lambda extension;
• Make sure everything is working properly in Axiom;
• Disable the permissions for CloudWatch.

For more detail on how to disable the CloudWatch logging, see the Axiom documentation.

Quickstart

1. Set these environment variables on your function:

   • AXIOM_DATASET: The dataset name to send logs to. Learn more about creating a dataset here
   • AXIOM_TOKEN: The Axiom API token (needs ingest permission into the dataset above). Learn more about creating tokens here

note the extensions will not work without correct credentials, but it will not crash your function. If you want it to crash for testing purposes check the Troubleshooting section below.

2. Add the extension as a layer with the AWS CLI:

$ aws lambda update-function-configuration --function-name my-function \
    --layers arn:aws:lambda:<AWS_REGION>:694952825951:layer:axiom-extension-<ARCH>:<VERSION>

• Use the latest version number specified on the Releases page for the VERSION parameter. For example, 4.
• For more detail on AWS_REGION and ARCH parameters, expand the table below:

All Lambda Layers

Region	arm64	x86_64
us-west-1	arn:aws:lambda:us-west-1:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:us-west-1:694952825951:layer:axiom-extension-x86_64:<VERSION>
us-west-2	arn:aws:lambda:us-west-2:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:us-west-2:694952825951:layer:axiom-extension-x86_64:<VERSION>
us-east-1	arn:aws:lambda:us-east-1:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:us-east-1:694952825951:layer:axiom-extension-x86_64:<VERSION>
us-east-2	arn:aws:lambda:us-east-2:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:us-east-2:694952825951:layer:axiom-extension-x86_64:<VERSION>
eu-west-1	arn:aws:lambda:eu-west-1:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:eu-west-1:694952825951:layer:axiom-extension-x86_64:<VERSION>
eu-west-2	arn:aws:lambda:eu-west-2:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:eu-west-2:694952825951:layer:axiom-extension-x86_64:<VERSION>
eu-west-3	arn:aws:lambda:eu-west-3:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:eu-west-3:694952825951:layer:axiom-extension-x86_64:<VERSION>
eu-north-1	arn:aws:lambda:eu-north-1:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:eu-north-1:694952825951:layer:axiom-extension-x86_64:<VERSION>
eu-central-1	arn:aws:lambda:eu-central-1:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:eu-central-1:694952825951:layer:axiom-extension-x86_64:<VERSION>
ca-central-1	arn:aws:lambda:ca-central-1:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:ca-central-1:694952825951:layer:axiom-extension-x86_64:<VERSION>
sa-east-1	arn:aws:lambda:sa-east-1:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:sa-east-1:694952825951:layer:axiom-extension-x86_64:<VERSION>
ap-south-1	arn:aws:lambda:ap-south-1:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:ap-south-1:694952825951:layer:axiom-extension-x86_64:<VERSION>
ap-southeast-1	arn:aws:lambda:ap-southeast-1:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:ap-southeast-1:694952825951:layer:axiom-extension-x86_64:<VERSION>
ap-southeast-2	arn:aws:lambda:ap-southeast-2:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:ap-southeast-2:694952825951:layer:axiom-extension-x86_64:<VERSION>
ap-northeast-1	arn:aws:lambda:ap-northeast-1:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:ap-northeast-1:694952825951:layer:axiom-extension-x86_64:<VERSION>
ap-northeast-2	arn:aws:lambda:ap-northeast-2:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:ap-northeast-2:694952825951:layer:axiom-extension-x86_64:<VERSION>
ap-northeast-3	arn:aws:lambda:ap-northeast-3:694952825951:layer:axiom-extension-arm64:<VERSION>	arn:aws:lambda:ap-northeast-3:694952825951:layer:axiom-extension-x86_64:<VERSION>

Terraform Example

You can also use Terraform to hook up your Lambda with Axiom Lambda layer in two different ways:

1. Using plain Terraform code:

resource "aws_lambda_function" "test_lambda" {
  filename      = "lambda_function_payload.zip"
  function_name = "lambda_function_name"
  role          = aws_iam_role.iam_for_lambda.arn
  handler       = "index.test"
  runtime       = "nodejs14.x"

  ephemeral_storage {
    size = 10240 # Min 512 MB and the Max 10240 MB
  }

  environment {
    variables = {
      AXIOM_TOKEN   = "axiom-token"
      AXIOM_DATASET = "axiom-dataset"
    }
  }

  layers = [
    "arn:aws:lambda:<AWS_REGION>:694952825951:layer:axiom-extension-<ARCH>:<VERSION>"
  ]
}

2. Using AWS lambda module:

module "lambda_function" {
  source = "terraform-aws-modules/lambda/aws"

  function_name = "my-lambda1"
  description   = "My awesome lambda function"
  handler       = "index.lambda_handler"
  runtime       = "python3.8"

  source_path = "../src/lambda-function1"

  layers = [
    "arn:aws:lambda:<AWS_REGION>:694952825951:layer:axiom-extension-<ARCH>:<VERSION>"
  ]

  environment_variables = {
    AXIOM_TOKEN   = "axiom-token"
    AXIOM_DATASET = "axiom-dataset"
  }
}

Troubleshooting

Double check that the API token has permission to ingest data into the dataset. If that is not the issue, please check the function logs on the AWS console, the extension will log any errors with setup or ingest.

For testing purposes you can also set the PANIC_ON_API_ERR environment variable to true to tell the extension to crash if couldn't connect to Axiom.

License

© Axiom, Inc., 2023

Distributed under MIT License (The MIT License).