Manual Lambda configuration

Create a new Kinesis data stream

If you’re not already sending your GuardDuty logs through a Kinesis data stream, create one using the Kinesis console.

Save the name of the data stream—you’ll need this in the next step.

Configure CloudWatch Events

In the CloudWatch console left menu, click Events > Rules, and then click Create rule.

In the Event Source panel (on the left), set these options:

  • Choose Event Pattern.
  • In the Build event pattern section, choose GuardDuty from the Service Name list. You can choose any Event Type that you need.

In the Targets panel (on the right), click Add target, and choose Kinesis stream. Choose the Kinesis data stream from step 1 from the Stream list.

Click Configure details (lower right corner).

Create a new Lambda function

This Lambda function will collect CloudWatch logs and sends them to Logz.io in bulk over HTTP.

Open the AWS Lambda Console, and click Create function. Choose Author from scratch, and use this information:

  • Name: We suggest adding the log type to the name, but you can name this function whatever you want.
  • Runtime: Choose Python 3.7
  • Role: Click Create new role from template(s). Then, from the Policy Templates list, select Basic Edge Lambda permissions.

Click Create Function (bottom right corner of the page). After a few moments, you’ll see configuration options for your Lambda function.

You’ll need this page later on, so keep it open.

Zip the source files

Clone the Kinesis Stream Shipper - Lambda project from GitHub to your computer, and zip the Python files in the src/ folder.

git clone https://github.com/logzio/logzio_aws_serverless.git \
&& cd logzio_aws_serverless/python3/kinesis/ \
&& mkdir -p dist/python3/shipper; cp -r ../shipper/shipper.py dist/python3/shipper \
&& cp src/lambda_function.py dist \
&& cd dist/ \
&& zip logzio-kinesis lambda_function.py python3/shipper/*

You’ll upload logzio-kinesis.zip in the next step.

Upload the zip file and set environment variables

In the Function code section of Lambda, find the Code entry type list. Choose Upload a .ZIP file from this list.

Click Upload, and choose the zip file you created earlier (logzio-kinesis.zip).

In the Environment variables section, set your Logz.io account token, URL, and log type, and any other variables that you need to use.

Environment variables
Parameter Description
TOKEN The token of the account you want to ship to.
URL Protocol, listener host, and port (for example, https://<<LISTENER-HOST>>:8071).
Replace <<LISTENER-HOST>> with your region’s listener host (for example, listener.logz.io). For more information on finding your account’s region, see Account region.
TYPE "guardduty" The log type you’ll use with this Lambda. This can be a built-in log type, or a custom log type.
You should create a new Lambda for each log type you use.
FORMAT "text" "json" or "text". If "json", the Lambda function will attempt to parse the message field as JSON and populate the event data with the parsed fields.
COMPRESS false Set to true to compress logs before sending them. Set to false to send uncompressed logs.
Configure the function’s basic settings

In Basic settings, we recommend starting with these settings:

  • Memory: 512 MB
  • Timeout: 1 min 0 sec

These default settings are just a starting point. Check your Lambda usage regularly, and adjust these values if you need to.

Set the Kinesis event trigger

Find the Add triggers list (left side of the Designer panel). Choose Kinesis from this list.

Below the Designer, you’ll see the Configure triggers panel. Choose the Kinesis stream that the Lambda function will watch.

Click Add, and then click Save at the top of the page.

Check Logz.io for your logs

Give your logs some time to get from your system to ours, and then open Kibana.

If you still don’t see your logs, see log shipping troubleshooting.

Automated CloudFormation deployment

Before you begin, you’ll need: AWS CLI, an S3 bucket to store the CloudFormation package

Create a new Kinesis data stream

If you’re not already sending your GuardDuty logs through a Kinesis data stream, create one using the Kinesis console.

Save the name of the data stream. You’ll need this in the next step.

Configure CloudWatch Events

In the CloudWatch console left menu, click Events > Rules, and then click Create rule.

In the Event Source panel (on the left), set these options:

  • Choose Event Pattern.
  • In the Build event pattern section, choose GuardDuty from the Service Name list. You can choose any Event Type that you need.

In the Targets panel (on the right), click Add target, and choose Kinesis stream. Choose the Kinesis data stream from step 1 from the Stream list.

Click Configure details (lower right corner).

Zip the source files

Clone the Kinesis Stream Shipper - Lambda project from GitHub to your computer, and zip the Python files in the src/ folder.

git clone https://github.com/logzio/logzio_aws_serverless.git \
&& cd logzio_aws_serverless/python3/kinesis/ \
&& mkdir -p dist/python3/shipper; cp -r ../shipper/shipper.py dist/python3/shipper \
&& cp src/lambda_function.py dist \
&& cd dist/ \
&& zip logzio-kinesis lambda_function.py python3/shipper/*
Create the CloudFormation package and upload to S3

Create the CloudFormation package using the AWS CLI. Replace <<YOUR-S3-BUCKET>> with the S3 bucket name where you’ll be uploading this package.

cd ../ \
&& aws cloudformation package \
  --template sam-template.yaml \
  --output-template-file kinesis-template.output.yaml \
  --s3-bucket <<YOUR-S3-BUCKET>>
Deploy the CloudFormation package

Deploy the CloudFormation package using AWS CLI.

For a complete list of options, see the configuration parameters below the code block. 👇

aws cloudformation deploy
--template-file $(pwd)/cloudformation-template.output.yaml
--stack-name logzio-kinesis-logs-lambda-stack
--parameter-overrides
  LogzioTOKEN='<<SHIPPING-TOKEN>>'
  KinesisStream='<<KINESIS-STREAM-NAME>>'
--capabilities "CAPABILITY_IAM"
Parameters
Parameter Description
LogzioTOKEN Replace <<SHIPPING-TOKEN>> with the token of the account you want to ship to.
KinesisStream The name of the Kinesis stream where this function will listen for updates.
LogzioURL https://listener.logz.io:8071 Your region’s listener host. For more information on finding your account’s region, see Account region.
LogzioTYPE logzio_kinesis_stream The log type you’ll use with this Lambda. This can be a built-in log type, or a custom log type.
You should create a new Lambda for each log type you use.
LogzioFORMAT "text" "json" or "text". If "json", the Lambda function will attempt to parse the message field as JSON and populate the event data with the parsed fields.
LogzioCOMPRESS false Set to true to compress logs before sending them. Set to false to send uncompressed logs.
KinesisStreamBatchSize 100 The largest number of records to read from your stream at one time.
KinesisStreamStartingPosition "LATEST" The position in the stream to start reading from. For more information, see ShardIteratorType in the Amazon Kinesis API Reference.
Check Logz.io for your logs

Give your logs some time to get from your system to ours, and then open Kibana.

If you still don’t see your logs, see log shipping troubleshooting.