<datasources>
                <!-- ##DATASOURCES## -->
                <datasource jndi-name="java:jboss/datasources/OracleDS" enabled="true" use-java-context="true" pool-name="OracleDS">
                    <connection-url>jdbc:oracle:thin:@${env.ORACLE_EXTERNAL_SERVICE_SERVICE_HOST}:${env.ORACLE_EXTERNAL_SERVICE_SERVICE_PORT}/${env.EXTERNAL_ORACLE_DATABASE_NAME}</connection-url>
                    <driver>oracle</driver>
                    <pool>
                        <min-pool-size>1</min-pool-size>
                        <max-pool-size>1</max-pool-size>
                        <prefill>true</prefill>
                        <use-strict-min>true</use-strict-min>
                        <flush-strategy>FailingConnectionOnly</flush-strategy>
                    </pool>
                    <security>
                        <user-name>${env.EXTERNAL_ORACLE_USERNAME}</user-name>
                        <password>${env.EXTERNAL_ORACLE_PASSPHRASE}</password>
                    </security>
                    <validation>
                        <validate-on-match>true</validate-on-match>
                        <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleValidConnectionChecker"></valid-connection-checker>
                        <stale-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleStaleConnectionChecker"></stale-connection-checker>
                        <exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleExceptionSorter"></exception-sorter>
                    </validation>
                </datasource>
                <drivers>
                    <driver name="oracle" module="com.oracle">
                        <xa-datasource-class>oracle.jdbc.xa.client.OracleXADataSource</xa-datasource-class>
                    </driver>
                </drivers>
            </datasources>