Tools Practical By Samson Tanimawo, PhD Published Mar 31, 2026 4 min read

Cloud Custodian for Cleanup

Cloud Custodian automates cleanup of unused resources.

Setup

YAML-based policies. Run on schedule.

Policy: find unused EBS volumes; tag for cleanup.

Common: untagged resources, idle NAT gateways, old snapshots.

Library of community-shared policies.

Dry-run mode. Verify before applying.

Critical: don't auto-delete production resources without review.