Document matrix-user-creator suppression during MAS migration

Related to 3d7a926c19

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/3647
This commit is contained in:
Slavi Pantaleev 2024-10-21 10:57:05 +03:00
parent 44682a9e0f
commit 5431a34c69

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@ -294,6 +294,8 @@ The installation + migration steps are like this:
- Various [compatibility layer URLs](https://element-hq.github.io/matrix-authentication-service/setup/homeserver.html#set-up-the-compatibility-layer) are not yet installed. New login sessions will still be forwarded to the homeserver, which is capable of completing them.
- The `matrix-user-creator` role would be suppressed, so that it doesn't automatically attempt to create users (for bots, etc.) in the MAS database. These user accounts likely already exist in Synapse's user database and could be migrated over (via syn2mas, as per the steps below), so creating them in the MAS database would have been unnecessary and potentially problematic (conflicts during the syn2mas migration).
3. Consider taking a full [backup of your Postgres database](./maintenance-postgres.md#backing-up-postgresql). This is done just in case. The **syn2mas migration tool does not delete any data**, so it should be possible to revert to your previous setup by merely disabling MAS and re-running the playbook (no need to restore a Postgres backup). However, do note that as users start logging in (creating new login sessions) via the new MAS setup, disabling MAS and reverting back to the Synapse user database will cause these new sessions to break.
4. [Migrate your data from Synapse to Matrix Authentication Service using syn2mas](#migrate-your-data-from-synapse-to-matrix-authentication-service-using-syn2mas)