/aws-scripts

Primary LanguagePython

Documentation

As of majority cases, documentation is poor or missing.

Requirements:

  • In order to get it working, EC2 should be tagged with backupEnabled tag which has value yes || Yes || YES

  • retention tag should have integer value how long backups are preserved

  • Create IAM policy and attach policy to Role. Policy must have next values:

  • DescribeInstances

  • CreateSnapshot

  • CreateSnapshots

  • CreateTags

  • DescribeSnapshots

  • DeleteSnapshot

Create Lambda:

  • pick Author from scratch on right upper side
  • give it a name
  • and choose previously created role
  • select Python 2.7 interpreter and paste ebsSnapshot.py content. Please, copy it from RAW page to be sure you will not have issues with execution.
  • increase timeout to 3 mins
  • add environment variables
  • name: region
  • value: eg. us-east-1
  • only for ebsCleanup function add account_id environment variable with account id of your account
  • click on Triggers
  • add new trigger clicking on CloudWatch Events
  • select schedule and set up cron expression, eg. 0 12 * * ? *

Repeat the process for deleting snapshots with DeleteOn flag.

Note:

Additionally, you can set SNS to send notification whenever Lambda reported an error. With CloudWatch you can create dashboard with Invocations, Duration, Throttles and Errors.