Patch Cell's Tenant Model

Overview

Changes to a Cell’s TENANT_MODEL are applied through a JSON Patch (RFC 6902). Patches are applied from inner rings to outer rings, starting with ring 0 and proceeding outward sequentially.

If a patch application fails at any ring, the entire process halts and requires manual intervention.

Note

Patches are not applied to the quarantine ring (-1). To update the TENANT_MODEL of a Cell in the quarantine ring, open a Merge Request and update it directly.

Prerequisites

• Configure ringctl in your environment
• Ensure you have access to cells/tissue

Patch Operations

The following patch operations are available using ringctl:

Operation	Description	Parameters
add	Add a new field to the TENANT_MODEL	Target path, Value
replace	Replace a field’s value	Target JSON path, Value
remove	Remove a field	JSON path
move	Move a field to a new location	Source path, Destination path
copy	Copy a field to a new location	Source path, Destination path

Guides

• Creating Patches - How to create and submit patches
• Debugging Patches - How to check patch status and debug failures
• Deleting a Patch - How to delete a patch
• Retrying a Failed Patch - How to retry a failed patch
• Connecting to a Cell’s Toolbox Pod - How to access a cell for advanced troubleshooting