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tf_ebs_bckup

a Lambda-powered EBS Snapshot Terraform Module

A Terraform module for creating a Lambda Function that takes automatic snapshots of of all connected EBS volumes of correspondingly tagged instances. The function is triggered via a CloudWatch event that can be freely configured by a cronlike expression.

Input Variables:

  • EC2_INSTANCE_TAG - All instances with this tag be backed up. Default is "Backup"
  • RETENTION_DAYS - Number of day the created EBS Snapshots will be stored, defaults to 5
  • unique_name - Just a marker for the Terraform stack. Default is "v1"`
  • stack_prefix - Prefix for resource generation. Default is ebs_bckup
  • cron_expression - Cron expression for CloudWatch events. Default is "22 1 * * ? *"
  • regions - List of regions in which the Lambda function should run. Requires at least one entry (eg. ["eu-west-1", "us-west-1"])

Outputs

Default outputs are aws_iam_role_arn with the value of the created IAM role for the Lambda function and the lambda_function_name

Example usage

In your Terrafom main.tf call the module with the required variables.

module "ebs_bckup" {
  source = "github.com/kgorskowski/ebs_bckup"
  EC2_INSTANCE_TAG = "Backup"
  RETENTION_DAYS   = 10
  unique_name      = "v2"
  stack_prefix     = "ebs_snapshot"
  cron_expression  = "45 1 * * ? *"
  regions          = ["eu-west-1", "eu-central-1"]
}

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  • HCL 63.6%
  • Python 36.4%