grails-data-hibernate5/database-migration/src/integration-test/resources/application-transaction-datasource.yml

grails:
    plugin:
        databasemigration:
            changelogFileName: 'changelog-transaction.groovy'
            changelogLocation: 'src/integration-test/resources'
            updateOnStart: false
            second:
                updateOnStart: false
---
server:
    port: 0
---
dataSource:
    pooled: true
    jmxExport: true
    driverClassName: org.h2.Driver
    username: sa
    password:
    dbCreate: none
    url: jdbc:h2:file:./testDb
dataSources:
    other:
        pooled: true
        jmxExport: true
        driverClassName: org.h2.Driver
        username: sa
        password:
        dbCreate: none
        url: jdbc:h2:file:./otherDb