You need to add a couple of datasource definitions to your yaml configuration file.
datasource:
primary:
url: jdbc:mysql://localhost/primary
username: root
driver-class-name: com.mysql.jdbc.Driver
validation-query: select 1
secondary:
url: jdbc:mysql://localhost/secondary
username: root
driver-class-name: com.mysql.jdbc.Driver
validation-query: select 1
Make sure to disable the DataSourceAutoConfiguration in you configuration
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
You then need to manual configure each datasource and remember to set one as primary for any other auto configuration to work.
@Bean(name = "primaryDataSource")
@Primary
@ConfigurationProperties(prefix="datasource.primary")
public DataSource primaryDataSource() {
return DataSourceBuilder.create().build();
}
@Bean(name = "jdbcPrimaryTemplate")
public JdbcTemplate jdbcPrimaryTemplate(@Qualifier(value = "primaryDataSource") DataSource primaryDataSource) {
return new JdbcTemplate(primaryDataSource);
}
All you need to do in a Spring Boot project to get Liquibase to run for you is to simply add a dependency to the project pom. You can read more in the documents. Liquibase Database Initialization
Looking at the spring documentation you can find the additional properties used for Liquibase. In this example I am explicitly stating the connection properties rather than attempt to use the default datasource. Spring Ref Appendix A.
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