geoffstratton / aws-lambda-delete-ebs

AWS Lambda function for deleting unattached EBS volumes.

Repo Name

aws-lambda-delete-ebs

Description

AWS Lambda function for deleting unattached EBS volumes, using Python (tested with 3.7), Amazon's boto3 SDK, and some method of invoking the Lambda functions at specified times (e.g., a CloudWatch cron job).

Prerequisites

• The boto3 SDK.
• Ensure that the IAM Role attached to the Lambda function has a policy with ec2. If you want to create a custom policy, include:
  • ec2:DeleteVolume
  • ec2:DescribeRegions
  • ec2:DescribeVolumes
• Use the usual CloudWatch Logs role for logging.
• A cron job in CloudWatch to invoke the Lambda function at the desired times.

To set up boto3 for development (Amazon Linux and similar):

sudo yum install -y python3 python3-pip python3-setuptools
pip3 install boto3 --user
aws configure [enter your AWS access key and secret key]

python3
>>> import boto3
>>> ec2 = boto3.client('ec2')
>>> response = ec2.run_instances(ImageId='ami-00dc79254d0461090',InstanceType='t2.micro',KeyName='MY KEY',MinCount=1,MaxCount=1)

License

GNU General Public License v3.0