Cloudwatch Retention Setter is an AWS CDK construct library that reacts on AWS CloudWatch events. AWS CloudWatch does not offer the ability to set a "default retention policy" that would be set to all newly created Log Groups (e.g. by Lambda Function runs).
This construct addresses this by monitoring AWS CloudWatch Events via EventBridge, when a new LogGroup is created a Lambda function is invoked automatically that sets the retention policy to the specified value.
npm:
npm install --save cloudwatch-retention-setter
yarn:
yarn add cloudwatch-retention-setter
import * as cdk from 'aws-cdk-lib';
import { CloudwatchRetentionSetter } from 'cloudwatch-retention-setter';
import { RetentionDays } from 'aws-cdk-lib/aws-logs';
import { Schedule } from 'aws-cdk-lib/aws-events';
const app = new cdk.App();
const stack = new cdk.Stack(app, '<stack-name>');
// use default retention of 6 months
new CloudwatchRetentionSetter(stack, 'cloudwatch-retention-setter');
// use custom retention
new CloudwatchRetentionSetter(stack, 'cloudwatch-retention-setter', {
retentionDays: RetentionDays.ONE_MONTH,
});$ pip install cloudwatch-retention-setterimport aws_cdk.core as cdk
from cdk_cloudwatch_retention_setter import CloudwatchRetentionSetter
app = cdk.App()
stack = cdk.Stack(app, "<stack-name>")
CloudwatchRetentionSetter(stack, "cloudwatch-retention-setter")
