7.13.4. Upgrading to a New Model
The User Storage SPI instances are stored in a different set of relational tables. Red Hat Single Sign-On automatically runs a migration script. If any earlier User Federation providers are deployed for a realm, they are converted to the later storage model as is, including the id of the data. This migration will only happen if a User Storage provider exists with the same provider ID (i.e., "ldap", "kerberos") as the earlier User Federation provider.
So, knowing this there are different approaches you can take.
- You can remove the earlier provider in your earlier Red Hat Single Sign-On deployment. This will remove the local linked copies of all users you imported. Then, when you upgrade Red Hat Single Sign-On, just deploy and configure your new provider for your realm.
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The second option is to write your new provider making sure it has the same provider ID:
UserStorageProviderFactory.getId(). Make sure this provider is in thestandalone/deployments/directory of the new Red Hat Single Sign-On installation. Boot the server, and have the built-in migration script convert from the earlier data model to the later data model. In this case all your earlier linked imported users will work and be the same.
If you have decided to get rid of the import strategy and rewrite your User Storage provider, we suggest that you remove the earlier provider before upgrading Red Hat Single Sign-On. This will remove linked local imported copies of any user you imported.
