π¦ Day 21: S3 Lifecycle Policies β Automate Data Management in AWS
Category: AWS Storage
Goal: Learn how to automatically move or delete data in S3 based on rules.
π§ What Youβll Learn Today:
- What S3 Lifecycle Policies are
- How to set up lifecycle rules
- Use cases to save storage costs
- Key terms: Transition, Expiration, Storage Classes
ποΈ 1. What Are Lifecycle Policies in S3?
Lifecycle policies help you automate the movement or deletion of objects stored in S3.
β‘οΈ You can set rules like:
- Move data to cheaper storage after 30 days
- Delete files after 90 days
This helps in saving money and managing storage smartly.
π 2. Key Terms to Know
Term | Meaning |
---|---|
Transition | Move objects to a different storage class (like S3 Standard β S3 Glacier) |
Expiration | Automatically delete objects after a set number of days |
Storage Class | Type of S3 storage (Standard, IA, Glacier, Deep Archive, etc.) |
π 3. Example Lifecycle Rule
π Rule:
- Files older than 30 days β move to S3 Infrequent Access (IA)
- Files older than 90 days β move to S3 Glacier
- Files older than 365 days β delete
π This saves costs by using cheaper storage for older data.
π οΈ 4. How to Set It Up
- Go to your S3 bucket
- Click on Management tab
- Choose “Create lifecycle rule”
- Define:
- Rule name
- Scope (all objects or specific prefix/tags)
- Transitions
- Expiration
- Review and create
π Tip: Lifecycle rules are non-destructive during testing β you can use them in a limited scope first.
β 5. Real-World Use Cases
- Auto-archive logs after 30 days
- Delete old backups after 1 year
- Move rarely accessed reports to Glacier
- Clean up temporary files
π§ End of the Day Notes:
π‘ Lifecycle policies = “set it and forget it” for managing your S3 data.
πΈ They help you reduce costs without deleting important files too early.
π Always analyze your usage and access patterns before applying transitions.
π Navigate the Series:
β¬
οΈ Day 20: Backup & Recovery on AWS
β‘οΈDay 22: Static Website Hosting on S3 β Host Websites the Easy Way