Multi-zone#

The multi-zone data source is an aggregator that delegates to different backing data sources based on the zone of the current service role . This makes configuration simpler in multi-region deployment scenarios.

The set of supported operations depends on the operations supported by the delegate data sources. For example, a multi-zone data source can only be used to store tokens if all the delegate data sources support storing tokens.

Configuration#

The configuration of which data source to use for each zone is defined by a zone-mapping. It is also possible to define which data source is used by default when the current zone doesn’t match any of the configured zones.

The full configuration reference is found

in the configuration section

.

The following configuration defines a multi-zone data source with delegate data sources for two zones.

<data-source>
  <id>MultiZoneDataSource</id>
  <multi-zone xmlns="https://curity.se/ns/conf/data-access/multi-zone">
    <zone-mapping>
      <zone>zone-1</zone>
      <data-source>DataSource1</data-source>
    </zone-mapping>
    <zone-mapping>
      <zone>zone-2</zone>
      <data-source>DataSource2</data-source>
    </zone-mapping>
  </multi-zone>
</data-source>

Note that the referenced zones also need to be defined in configuration .

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