Configure S3 Lifecycle Rules for Object Transitions and Expiration

Overview

Configure Amazon S3 lifecycle rules to automatically transition or expire objects based on their age and target storage classes. This plan helps you inventory existing lifecycle configurations, decide which buckets and object subsets to manage, collect your desired transition and expiration policies, apply those policies, and then validate that everything matches your intent.

By following this plan, you will:

• Understand which buckets and objects are currently governed by lifecycle rules.
• Decide where to introduce or refine transitions to storage classes like STANDARD_IA, ONEZONE_IA, INTELLIGENT_TIERING, GLACIER, GLACIER_IR, and DEEP_ARCHIVE.
• Define when to expire current and noncurrent object versions and how to handle incomplete multipart uploads.
• Safely roll out, verify, and document lifecycle configurations across your S3 environment.

Execution Details

Phase 1: Assessment

Inventory S3 buckets and existing lifecycle rules

Identify all in-scope S3 buckets and capture their current lifecycle configurations. This includes:

• Listing buckets in scope (by account, region, or naming patterns) and recording their names and Regions.
• Determining whether each bucket has lifecycle rules configured.
• For buckets with lifecycle rules, documenting each rule’s ID, status (Enabled/Disabled), and filter scope (prefixes and/or tags).
• Recording all transition and expiration actions for both current and noncurrent objects, including:
  • Target storage classes and days from object creation or noncurrent state.
  • Current and noncurrent object expiration timings.
  • Any abort-incomplete-multipart-upload settings.
• Summarizing each bucket as having no rules, simple rules, or complex/multiple rules.
• Storing the full configuration in a structured format for later design and updates.

Record versioning status for in-scope buckets

Capture how bucket versioning interacts with lifecycle behavior so rules can correctly handle current and noncurrent versions:

• Retrieving versioning status for each bucket and recording whether versioning is Enabled, Suspended, or Never Enabled.
• Noting where lifecycle rules reference noncurrent transitions or expirations.
• Flagging buckets that rely on noncurrent behaviors but don’t have versioning properly enabled.
• Recording any bucket-level object lock or retention settings that might influence deletions.
• Summarizing for each bucket whether rules should apply only to current versions, or to both current and noncurrent versions.
• Storing these details alongside the lifecycle inventory for use in policy design.

Guide user to select buckets and object scope

Help you decide which buckets and object subsets should be managed or adjusted:

• Presenting each in-scope bucket with its Region, existing lifecycle rules, and versioning status.
• Highlighting buckets with no lifecycle rules and those where existing rules might be extended or refined.
• Allowing you to select which buckets to target for new or updated lifecycle configurations.
• For each selected bucket, guiding you to choose whether rules apply to:
  • All objects,
  • Objects under specific prefixes,
  • Objects with specific tags,
  • Or combinations of prefixes and tags.
• Capturing desired prefixes and tag key/value pairs that define object subsets (for example, logs/, backups/, temp/).
• Recording whether you want separate rules for different prefixes or tag sets.
• Storing the approved list of target buckets and associated scopes for the policy-definition phase.

Guide user to define lifecycle transition and expiration policies

Collect detailed lifecycle behavior for each selected bucket and object scope:

• Presenting existing rules per bucket/scope so you can see current transitions and expirations.
• For current versions, guiding you to define:
  • When objects should transition (number of days from creation).
  • Which storage classes to use (e.g., STANDARD_IA, ONEZONE_IA, INTELLIGENT_TIERING, GLACIER, GLACIER_IR, DEEP_ARCHIVE).
• If versioning is enabled or planned, presenting options for noncurrent version transitions, including days after becoming noncurrent and target storage classes.
• For expiration, asking you to define:
  • Whether and when current versions should be permanently deleted.
  • Whether and when noncurrent versions should be permanently deleted.
• Asking whether incomplete multipart uploads should be automatically aborted and after how many days.
• Letting you decide whether each rule should be Enabled immediately or created in a Disabled state for a phased rollout.
• Confirming with you that the chosen rules respect any regulatory or retention requirements (based on your judgment).
• Consolidating your choices into complete lifecycle rule definitions (IDs, filters, status, transitions, expirations, noncurrent actions, and multipart settings) and storing them as final, user-approved policies.

Phase 2: Configuration

Apply lifecycle configurations to selected S3 buckets

Create or update lifecycle configurations using the policies defined in the Assessment phase:

• Retrieving the final, user-approved lifecycle policies per bucket and scope.
• Comparing them with each bucket’s current lifecycle configuration to determine whether to:
  • Merge new rules with existing ones,
  • Update existing rules,
  • Or replace specific rules according to your intent.
• Ensuring each lifecycle rule has a unique rule ID within the bucket.
• Configuring rule filters to match the chosen prefixes and/or tags.
• Setting up transitions for current and, where applicable, noncurrent versions with the specified timing and target storage classes.
• Configuring expiration for current and noncurrent versions based on your defined retention periods.
• Applying abort-incomplete-multipart-upload settings where requested.
• Setting rule statuses (Enabled or Disabled) as specified.
• Applying updated lifecycle configurations to each bucket and checking that they are accepted without errors.
• Retrieving and recording the final lifecycle configuration per bucket for later validation and audit purposes.

Phase 3: Validation

Validate S3 lifecycle configuration on target buckets

Confirm that applied lifecycle rules fully match your approved definitions:

• Retrieving lifecycle configurations from all buckets that were modified.
• Verifying that the number of rules and their IDs match the final policy set.
• Checking that each rule’s filter (prefixes and/or tags) correctly reflects the intended object scope.
• Confirming that transition settings for current and noncurrent versions (days and target storage classes) align with your definitions.
• Confirming that expiration settings for current and noncurrent versions are correctly configured or intentionally omitted.
• Verifying that abort-incomplete-multipart-upload settings are present and accurate where requested.
• Ensuring that rule statuses (Enabled or Disabled) match your rollout plan.
• Documenting any discrepancies and outlining recommended follow-up changes.
• Producing a final validation summary showing which buckets fully meet the intended lifecycle configuration and which may need adjustment.