How to externalize configuration in Spring Boot using profiles? - spring

Question

I have an application where I would like to change a datasource password that is stored in a application.yml file. The password in the YML file is stored such as this:
----
spring:
profiles: production
datasource:
password: prodpassword
Note: I also have profiles for development and stage.
The password prop is set on a class using ConfigurationProperties such as follows:
#Component
#ConfigurationProperties(prefix="datasource")
public class DataSourceConnector {
private password;
public void setPassword(String password) {
this.password = password;
}
Now, I try to override the prodpassword with prodpa$$word via a command line arg but it doesn't work:
java -Dspring.profiles.active=production -jar /usr/share/myapp/myapp-1.0.jar --datasource.password='prodpa$$word'
I also tried creating an identical (except the new password) application.yml file outside of the jar. That doesn't work either.
java -Dspring.profiles.active=production -jar /usr/share/myapp/myapp-1.0.jar --spring.config.location=/usr/share/myapp/
Note: I left out the file name in the location param due to this note from http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#boot-features-external-config-profile-specific-properties:
If you have specified any files in spring.config.location, profile-specific variants of those files will not be considered. Use directories inspring.config.location if you also want to also use profile-specific properties.
How can I override datasource.password within the application.yml of the jar?
Edit:
The application is being started / stopped using supervisorctl.

Answer 1

After changing the config file that contains the java command, supervisorctl must reread the change:
supervisorctl reread
Next, activate the changes with:
supervisorctl update