Lambda Version Cleaner

• Purpose
• Installing

Purpose

This SAM template deploys a Lambda function that deletes old Lambda versions in the account deployed in.

Installing

There are deployment workflows that handle deployment on PR merge. If you want to install manually, everything is packaged with AWS SAM. Note that the AlarmsSNSTopic parameter is optional and if provided, will also deploy a CloudWatch alarm on invocation errors which pushes alarm events to the specified AlarmsSNSTopic. Clone this repo and run the following commands:

sam build --use-container

sam deploy --debug \                        
    --stack-name lambda-version-cleaner \
    --s3-bucket <an existing bucket to store lambda sam apps in> \
    --region <AWS region to deploy to> \
    --profile <AWS profile to use> \
    --capabilities CAPABILITY_NAMED_IAM \
    --parameter-overrides \
        "NumberOfVersionsToKeep=<number> \
        AWSRegions=<comma separated list of AWS regions to delete Lambda versions from> \
        AlarmsSNSTopic=<optional input name of alarm SNS topic>" \
    --no-fail-on-empty-changeset

e.g.
sam deploy --debug \                        
    --stack-name lambda-version-cleaner \
    --s3-bucket some-s3-bucket \
    --region us-east-1 \
    --profile staging \
    --capabilities CAPABILITY_NAMED_IAM \
    --parameter-overrides \
        "NumberOfVersionsToKeep=10  \
        AWSRegions=us-east-1,us-east-2" \
    --no-fail-on-empty-changeset