AWS Lambda

Logs

This project deploys instrumentation that allows shipping Cloudwatch logs to Logz.io, with a Firehose Delivery Stream. It uses a Cloudformation template to create a Stack that deploys:

• Firehose Delivery Stream with Logz.io as the stream's destination.
• Lambda function that adds Subscription Filters to Cloudwatch Log Groups, as defined by user's input.
• Roles, log groups, and other resources that are necessary for this instrumentation.

note

If you want to send logs from specific log groups, use customLogGroups instead of services. Since specifying services will automatically send all logs from those services, regardless of any custom log groups you define.

Auto-deploy the Stack

To deploy this project, click the button that matches the region you wish to deploy your stack to:

Region	Deployment
us-east-1
us-east-2
us-west-1
us-west-2
eu-central-1
eu-central-2
eu-north-1
eu-west-1
eu-west-2
eu-west-3
eu-south-1
eu-south-2
sa-east-1
ap-northeast-1
ap-northeast-2
ap-northeast-3
ap-south-1
ap-south-2
ap-southeast-1
ap-southeast-2
ap-southeast-3
ap-southeast-4
ap-east-1
ca-central-1
ca-west-1
af-south-1
me-south-1
me-central-1
il-central-1

Specify stack details

Specify the stack details as per the table below, check the checkboxes and select Create stack.

Parameter	Description	Required/Default
logzioToken	The token of the account you want to ship logs to.	Required
logzioListener	Listener host.	Required
logzioType	The log type you'll use with this Lambda. This can be a built-in log type, or a custom log type.	logzio_firehose
services	A comma-seperated list of services you want to collect logs from. Supported options are: apigateway, rds, cloudhsm, cloudtrail, codebuild, connect, elasticbeanstalk, ecs, eks, aws-glue, aws-iot, lambda, macie, amazon-mq.	-
customLogGroups	A comma-separated list of custom log groups to collect logs from, or the ARN of the Secret parameter (explanation below) storing the log groups list if it exceeds 4096 characters. Note: You can also specify a prefix of the log group names by using a wildcard at the end (e.g., prefix*). This will match all log groups that start with the specified prefix.	-
useCustomLogGroupsFromSecret	If you want to provide list of customLogGroups which exceeds 4096 characters, set to true and configure your customLogGroups as defined below.	false
triggerLambdaTimeout	The amount of seconds that Lambda allows a function to run before stopping it, for the trigger function.	60
triggerLambdaMemory	Trigger function's allocated CPU proportional to the memory configured, in MB.	512
triggerLambdaLogLevel	Log level for the Lambda function. Can be one of: debug, info, warn, error, fatal, panic	info
httpEndpointDestinationIntervalInSeconds	The length of time, in seconds, that Kinesis Data Firehose buffers incoming data before delivering it to the destination	60
httpEndpointDestinationSizeInMBs	The size of the buffer, in MBs, that Kinesis Data Firehose uses for incoming data before delivering it to the destination	5

caution

AWS limits every log group to have up to 2 subscription filters. If your chosen log group already has 2 subscription filters, the trigger function won't be able to add another one.

Custom Log Group list exceeds 4096 characters limit

If your customLogGroups list exceeds the 4096 characters limit, follow the below steps:

1. Open AWS Secret Manager
2. Click Store a new secret
   • Choose Other type of secret
   • For key use logzioCustomLogGroups
   • In value store your comma-separated custom log groups list
   • Name your secret, for example as LogzioCustomLogGroups
   • Copy the new secret's ARN
3. In your stack, Set:
   • customLogGroups to your secret ARN that you copied in step 2
   • useCustomLogGroupsFromSecret to true

Send logs

Give the stack a few minutes to be deployed.

Once new logs are added to your chosen log group, they will be sent to your Logz.io account.

Important

If you've used the services field, you'll have to wait 6 minutes before creating new log groups for your chosen services. This is due to cold start and custom resource invocation, that can cause the Lambda to behave unexpectedly.

Check Logz.io for your logs

Give your logs some time to get from your system to ours, and then open Open Search Dashboards.

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

Metrics

Deploy this integration to send Amazon Lambda metrics to Logz.io. It creates a Kinesis Data Firehose delivery stream to send metrics to your Logz.io account and a Lambda function to add AWS namespaces and collect resource tags.

Install the pre-built dashboard to enhance the observability of your metrics.

Before you begin, you'll need:

• An active Logz.io account

Configure AWS to forward metrics to Logz.io

1. Set the required minimum IAM permissions

configured the minimum required IAM permissions as follows:

• Amazon S3:
  • s3:CreateBucket
  • s3:DeleteBucket
  • s3:PutObject
  • s3:GetObject
  • s3:DeleteObject
  • s3:ListBucket
  • s3:AbortMultipartUpload
  • s3:GetBucketLocation
• AWS Lambda:
  • lambda:CreateFunction
  • lambda:DeleteFunction
  • lambda:InvokeFunction
  • lambda:GetFunction
  • lambda:UpdateFunctionCode
  • lambda:UpdateFunctionConfiguration
  • lambda:AddPermission
  • lambda:RemovePermission
  • lambda:ListFunctions
• Amazon CloudWatch:
  • cloudwatch:PutMetricData
  • cloudwatch:PutMetricStream
  • logs:CreateLogGroup
  • logs:CreateLogStream
  • logs:PutLogEvents
  • logs:DeleteLogGroup
  • logs:DeleteLogStream
• AWS Kinesis Firehose:
  • firehose:CreateDeliveryStream
  • firehose:DeleteDeliveryStream
  • firehose:PutRecord
  • firehose:PutRecordBatch
• IAM:
  • iam:PassRole
  • iam:CreateRole
  • iam:DeleteRole
  • iam:AttachRolePolicy
  • iam:DetachRolePolicy
  • iam:GetRole
  • iam:CreatePolicy
  • iam:DeletePolicy
  • iam:GetPolicy
• Amazon CloudFormation:
  • cloudformation:CreateStack
  • cloudformation:DeleteStack
  • cloudformation:UpdateStack
  • cloudformation:DescribeStacks
  • cloudformation:DescribeStackEvents
  • cloudformation:ListStackResources

2. Create stack in the relevant region

To deploy this project, click the button that matches the region you wish to deploy your stack to:

Region	Deployment
us-east-1
us-east-2
us-west-1
us-west-2
eu-central-1
eu-central-2
eu-north-1
eu-west-1
eu-west-2
eu-west-3
eu-south-1
eu-south-2
sa-east-1
ap-northeast-1
ap-northeast-2
ap-northeast-3
ap-south-1
ap-south-2
ap-southeast-1
ap-southeast-2
ap-southeast-3
ap-southeast-4
ap-east-1
ca-central-1
ca-west-1
af-south-1
me-south-1
me-central-1
il-central-1

3. Specify stack details

Specify the stack details as per the table below, check the checkboxes and select Create stack.

Parameter	Description	Required/Default
logzioListener	Logz.io listener URL for your region. (For more details, see the regions page. e.g., https://listener.logz.io:8053	Required
logzioToken	Your Logz.io metrics shipping token.	Required
awsNamespaces	Comma-separated list of AWS namespaces to monitor. See this list of namespaces. Use value all-namespaces to automatically add all namespaces.	At least one of awsNamespaces or customNamespace is required
customNamespace	A custom namespace for CloudWatch metrics. Used to specify a namespace unique to your setup, separate from the standard AWS namespaces.	At least one of awsNamespaces or customNamespace is required
logzioDestination	Your Logz.io destination URL. Choose the relevant endpoint from the drop down list based on your Logz.io account region.	Required
httpEndpointDestinationIntervalInSeconds	Buffer time in seconds before Kinesis Data Firehose delivers data.	60
httpEndpointDestinationSizeInMBs	Buffer size in MBs before Kinesis Data Firehose delivers data.	5
debugMode	Enable debug mode for detailed logging (true/false).	false

4. View your metrics

Allow some time for data ingestion, then open your Logz.io metrics account.

Install the pre-built dashboard to enhance the observability of your metrics.

To view the metrics on the main dashboard, log in to your Logz.io Metrics account, and open the Logz.io Metrics tab.

Traces

Deploy this integration for automatic instrumentation on AWS Lambda, forwarding traces to Logz.io. This involves adding an OpenTelemetry collector layer and configuring environment variables without modifying your application code.

These guides provide step-by-step instructions for sending traces with OpenTelemetry, tailored to your application's programming language:

• Go
• Node.js
• Java
• Python