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aws-log-ingestion

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AWS Serverless Application that sends log data from CloudWatch Logs to New Relic Infrastructure - Cloud Integrations.

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# New Relic CloudWatch Logs ingestion

AWS Serverless application that sends log data from CloudWatch Logs to New Relic.

## Requirements

To forward data to New Relic you need a [New Relic License Key](https://docs.newrelic.com/docs/accounts/install-new-relic/account-setup/license-key).

## Install and configure

To install and configure the New Relic Cloudwatch Logs Lambda, [see our documentation](https://docs.newrelic.com/docs/logs/enable-logs/enable-logs/aws-cloudwatch-plugin-logs).

Additional notes:

* Some users in UTF-8 environments have reported difficulty with defining strings of `NR_TAGS` delimited by the semicolon `;` character. If this applies to you, you can set an alternative delimiter character as the value of `NR_ENV_DELIMITER`, and separate your `NR_TAGS` with that.
* Custom Lambda and VPC log groups can be set using the `NR_LAMBDA_LOG_GROUP_PREFIX` and `NR_VPC_LOG_GROUP_PREFIX` environment variables.
* For `.NET` Lambda functions, set `NEW_RELIC_FORMAT_LOGS=true` to enable proper processing of `.NET` specific log payload formats.

## Manual Deployment

If your organization restricts access to deploy via SAR, follow these steps below
to deploy the log ingestion function manually.

### SAM

1. Clone this repository: `git clone https://github.com/newrelic/aws-log-ingestion.git`
2. [Install the SAM CLI](https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-sam-cli-install.html) Make sure you have >=1.105.0 installed, you can check with `sam --version`.
3. [Retrieve your New Relic License Key](https://docs.newrelic.com/docs/accounts/install-new-relic/account-setup/license-key)
4. Build the SAM application (if on Linux `-u` can be omitted): `sam build -u --parameter-overrides 'ParameterKey=NRLicenseKey,ParameterValue=your-license-key-here'`
5. Deploy the SAM application: `sam deploy --guided`

### Serverless

1. Clone this repository: `git clone https://github.com/newrelic/aws-log-ingestion.git`
2. Install Serverless: `npm install -g serverless`
3. Install the serverless-python-requirements plugin: `sls plugin install -n serverless-python-requirements`
4. If not running Linux, [install Docker](https://docs.docker.com/install/)
5. [Retrieve your New Relic License Key](https://docs.newrelic.com/docs/accounts/install-new-relic/account-setup/license-key)
6. Set the LICENSE_KEY environment variable: `export LICENSE_KEY=your-license-key-here`
7. Deploy the function: `sls deploy`

### Terraform

In your Terraform, you can add this as a module, replacing `{{YOUR_LICENSE_KEY}}` with your New Relic License Key.

```terraform
module "newrelic_log_ingestion" {
  source             = "github.com/newrelic/aws-log-ingestion"
  nr_license_key     = "{{YOUR_LICENSE_KEY}}"
}
```

By default, this will build and pack the lambda zip inside of the Terraform Module. You can supply your own by switching `build_lambda = false`, and specify the path to your lambda, using `lambda_archive = "{{LAMBDA_PATH}}"`, replacing `{{LAMBDA_PATH}}` with the path to your lambda.

## Infra Payload Format

The maximum payload size in bytes is:

<https://github.com/newrelic/aws-log-ingestion/blob/1430a247f1fb5feb844f0707838a6ef48d21fc41/src/function.py#L76>

If your payload exceeds this size, you will need to split it into pieces:

<https://github.com/newrelic/aws-log-ingestion/blob/1430a247f1fb5feb844f0707838a6ef48d21fc41/src/function.py#L292-L306>

The payload should be utf-8 encoded and then gzipped before sending:

<https://github.com/newrelic/aws-log-ingestion/blob/1430a247f1fb5feb844f0707838a6ef48d21fc41/src/function.py#L298>

The following GNU coreutils Bash command will reproduce the desired payload encoding and compression:

```sh
xclip -sel clip -o | iconv -cf utf-8 | gzip > payload.gz
```

Required headers include:

* <https://github.com/newrelic/aws-log-ingestion/blob/1430a247f1fb5feb844f0707838a6ef48d21fc41/src/function.py#L360-L361>
* `Accept-Encoding: gzip`
* `Content-Length: <calculated when request is sent>`
* `Host: <calculated when request is sent>`

The payload should include the following (properly escaped) elements[^1]:

```json
{
  "context": {
    "function_name": "newrelic-log-ingestion",
    "invoked_function_arn": "arn:aws:lambda:<your_aws_region>:<your_aws_account>:function:newrelic-log-ingestion",
    "log_group_name": "/aws/lambda/newrelic-log-ingestion",
    "log_stream_name": "<your_nli_log_stream_name>"
  },
  "entry": "{\"messageType\": \"DATA_MESSAGE\", \"owner\": \"<your_aws_account>\", \"logGroup\": \"/aws/lambda/<your_function_name>\", \"logStream\": \"<your_function_log_stream_name>\", \"subscriptionFilters\": [\"<your_function_name>\"], \"logEvents\": [{\"id\": \"36858672311120633630098786383886689203484013407063113737\", \"timestamp\": 1652800029012, \"message\": \"[1,\\\"NR_LAMBDA_MONITORING\\\",\\\"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\\\"]\\n\"}, {\"id\": \"36858672311232137356091439499594367794847255214593015820\", \"timestamp\": 1652800029017, \"message\": \"REPORT RequestId: 60d9a6a3-f31e-43e6-94a7-8485e06f8aa6\\tDuration: 13.98 ms\\tBilled Duration: 14 ms\\tMemory Size: 1024 MB\\tMax Memory Used: 87 MB\\tInit Duration: 584.39 ms\\t\\n\"}]}"
}
```

[^1]: Replace <your_xyz> elements with your content, for example: `"log_stream_name": "2022/05/17/[$LATEST]30dce751bc1a4e7497eb644171d70153"`.

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