spring boot - How to make Springboot JPA datasource wait for a config file before attempting a connection

Question

I'm trying to connect to a spring data source with the following in my application.properties file

spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.url=jdbc:postgresql://localhost:5432/postgres
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQL10Dialect
spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.generate_statistics=true
spring.jpa.show-sql=true
DBUsernameId=RDS_USERNAME
DBPasswordId=RDS_PASSWORD

I don't want to put a username/password in my application.properties file but instead want it configured via a config like so:

@Value("${DBUsernameId}")
private String dataSourceUsername;

@Value("${DBPasswordId}")
private String dataSourcePassword;

@Bean
@PostConstruct
public void setProperties() {
     System.setProperty("spring.datasource.username", secretProvider.getSecret(dataSourceUsername));
     System.setProperty("spring.datasource.password", secretProvider.getSecret(dataSourcePassword));
}

How can I trigger a db connection AFTER it gets the username and password?

question from:https://stackoverflow.com/questions/66067775/how-to-make-springboot-jpa-datasource-wait-for-a-config-file-before-attempting-a

Answer 1

Waitting for answers