S3 Lifecycle to Infrequent Access

📦 Overview

This Terraform module applies an Amazon S3 lifecycle policy to an existing bucket. The policy automatically transitions objects to the STANDARD_IA (Infrequent Access) storage class after a configurable number of days (default: 30).

It’s ideal for buckets storing logs, cold archive data, or infrequently accessed backups.

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✅ Key Features

• Automates object tiering to STANDARD_IA after a set number of days
• Supports optional prefix filtering for targeted transitions
• Reduces S3 storage costs with no manual intervention
• Designed to apply to any existing S3 bucket

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💼 Use Cases

• Archive log storage with delayed cold-tier transition
• Backup data stored long-term with reduced retrieval frequency
• General cold data tiering in large S3 buckets
• Billing optimization for compliance data and audit logs

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📥 Input Variables

Name	Type	Description
region	string	AWS region where the target S3 bucket is located
bucket_name	string	Name of the existing S3 bucket to attach the lifecycle rule to
transition_days	number	Number of days after which objects should transition to STANDARD_IA
prefix_filter	string	(Optional) Prefix filter for targeting specific object sets (e.g., "logs/")
environment	string	Tag to specify the deployment environment (e.g., dev, staging, prod)

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📤 Outputs

Name	Description
bucket_name	The name of the S3 bucket targeted
rule_id	The ID of the applied lifecycle rule

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🚀 Deployment Readiness

• ✅ Compatible with Terraform 1.0+
• ✅ Tested with AWS provider 5.x
• 🧪 Requires an existing S3 bucket and IAM permissions to manage lifecycle rules

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🛠️ Example Usage

module "s3_lifecycle_ia" {
  source          = "git::ssh://git@github.com/archiphire/aws-level-1-modules.git//storage/s3-lifecycle-ia?ref=v1.0.0"

  region          = "us-east-1"
  bucket_name     = "archiphire-cold-archive"
  transition_days = 30
  prefix_filter   = "logs/"
  environment     = "prod"
}

terraform init
terraform plan
terraform apply

or

tofu init
tofu plan
tofu apply

🧹 Cleanup Options

Terraform Destroy (for test environments):

terraform destroy

or

tofu destroy

⚠️ This will only remove the lifecycle rule. The S3 bucket and all objects will remain unless manually deleted.

🛡️ Notes

This is a Level 1 cost-optimization module designed for modular use. To extend functionality, consider chaining with:

s3-access-logging s3-secure-bucket

🔒 Deployment Package Notice

This module is part of the Level 1 AWS License Tier. To access the full deployment package and source code, subscribe to Archiphire.