lambder-create-snapshots

create-snapshots is an AWS Lambda function for use with Lambder.

REQUIRES:

• python-lambder

This lambda function creates an EBS snapshot from each EBS volume tagged with Key: 'LambderBackup'. The function will retain at most 3 snapshots and delete the oldest snapshot to stay under this threshold.

Installation

1. Clone this repo
2. cp example_lambder.json lambder.json
3. Edit lambder.json to set your S3 bucket
4. Edit config.json to set the regions where you want pruning
5. lambder functions deploy

Usage

Schedule the function with a new event. Rember that the cron expression is based on UTC.

lambder events add \
  --name CreateSnapshots \
  --function-name Lambder-create-snapshots \
  --cron 'cron(0 6 ? * * *)'

TODO

• Parameterize the tag in the input event object
• Parameterize number of old snapshots to retain