Rollback

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Rollback is a recovery operation that reverses the effects of an identified change by restoring the affected subject to a previously valid state.

The affected subject may include:

• An Infrastructure Environment
• An Infrastructure Resource
• A Virtual Machine
• A Kubernetes Cluster
• A Containerized Workload
• A Platform Service
• An Infrastructure Configuration
• An Image
• A database
• Another operational subject

The prior valid state may be identified through:

• A prior Revision
• A prior Baseline
• A recorded configuration
• A checkpoint
• A snapshot
• A prior Image
• Another identified state representation

Rollback differs from recovery:

• Rollback restores an identified prior valid state by reversing a change
• Recovery restores an acceptable operational condition and may use rollback, repair, replacement, restoration, or another mechanism

Rollback differs from restoration:

• Rollback reverses the effects of an identified change
• Restoration reconstructs a subject or its information from a preserved representation

Rollback differs from redeployment:

• Rollback restores an identified prior state
• Redeployment performs a deployment operation again

recovery operation that reverses the effects of an identified change by restoring the affected subject to an identified prior valid state

Dido Solutions, Inc. and Jackrabbit Consulting, Inc.

Rollback does not necessarily:

• Restore external state
• Restore information modified outside the controlled change
• Reverse irreversible operations
• Recover all dependent subjects
• Occur automatically after a failure

Applicable requirements should identify:

• The affected subject
• The change being reversed
• The prior valid state
• The rollback initiation condition
• The rollback result
• State that cannot be reversed
• Required Evidence

After an unsuccessful configuration change, Crucible performs Rollback by restoring the affected Infrastructure Environment to the identified Infrastructure Configuration Revision used before the change.