Spring Boot - property spring.config.location not working - spring-boot

Question

I have following section in application.yaml file where I am trying to read an external property file:
spring:
config:
name: my-config
location: ./config/
pom.xml looks like:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>myservice</groupId>
<artifactId>my-service</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>org.everit.json</groupId>
<artifactId>org.everit.json.schema</artifactId>
<version>1.3.0</version>
</dependency>
</dependencies>
<properties>
<java.version>1.10</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Application.java:
#SpringBootApplication
#EnableAutoConfiguration
#ComponentScan
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
Config Class where I am trying to use the config:
#Component
#ConfigurationProperties(prefix = "my-config-prefix")
#RefreshScope
public class MyConfig {
...
When I try to run the Microservice it does not map any of the config elements from the external config my-config.yml file.
If I copy and paste the entire content of the my-config.yml into application.yml file, it works as expected mapping all the elements in MyConfig class!
Spring boot seem to pick up all the elements under application.yml file for instance if I change the server.port property I can see the change when I restart however it looks like it is not picking up any properties under 'spring' element.
I have tried to supply the property on commands line and it works as expected however I want this properties in the yml file:
--spring.config.location=file:///Users/home/my-config.yml
Also, I have tried to specify the full location (as above) from application.yml file and it does not work.

Answer 1

I have manage to resolve the issue by renaming the application.yml file to bootstrap.yml.
It looks like only bootstrap properties can access 'spring.*' values.