Setting profiles in Spring Boot application based on system property

Question

I'd like to set active profile for Spring based on environment variable. To do so, I've written the following code:

@Configuration
public class SpringBootApplicationInitializer
        implements ServletContextInitializer {

    @Override
    public void onStartup(ServletContext servletContext) {

        String platform = System.getProperty("platform");

        if ("prod".equals(platform)) {
            servletContext.setInitParameter("spring.profiles.active",
                                            "prod");
        } else if ("stag".equals(platform)) {
            servletContext.setInitParameter("spring.profiles.active",
                                            "stag");
        } else {
            servletContext.setInitParameter("spring.profiles.active",
                                            "dev");
        }
    }
}

This code gets executed, however, no profile is set as Spring writes: INFO - No active profile set, falling back to default profiles: default

How do I achieve what I want?

https://stackoverflow.com/questions/38520638/how-to-set-spring-profile-from-system-variable might help — seenukarthi, Feb 26 '20 at 09:08

cassiomolin · Accepted Answer · 2020-02-26T09:41:13.397

2

How do I achieve what I want?

You could simply set the desired profile in the SPRING_PROFILES_ACTIVE environment variable.

What if I don't want to set this variable for dev environment? Spring will not pick up active profile then.

To address your comment, there are a number of ways to configure Spring Boot applications. If your concern is not using this environment variable for development, you'll be please to know that you can still use a properties or YAML file for development.

Just bear in mind that OS environment variables take precedence over application properties (application.properties and YAML variants). For details all configuration property sources, refer to the documentation.

edited Feb 26 '20 at 09:41

answered Feb 26 '20 at 09:09

cassiomolin

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Yes, of course. What if I don't want to set this variable for `dev` environment? Spring will not pick up active profile then. – menteith Feb 26 '20 at 09:19
@menteith You can still use a properties or YAML file for your development environment. – cassiomolin Feb 26 '20 at 09:29

GolamMazid Sajib · Answer 2 · 2020-02-26T09:37:30.013

0

Try like like this in application.yml

spring:
  profiles:
    active: ${platform}

edited Feb 26 '20 at 09:37

answered Feb 26 '20 at 09:10

GolamMazid Sajib

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It doesn't seem to work. After setting env variable, Spring prints `The following profiles are active: ${platfrom}` – menteith Feb 26 '20 at 09:16
it works at my machine. i set variable in idea environment variable.. when deploy tomcat it reads from tomcat environment variable – GolamMazid Sajib Feb 26 '20 at 09:35
i think u miss variable name. i gave platfrom . u used platform – GolamMazid Sajib Feb 26 '20 at 09:37
@menteith did u check with variable name? – GolamMazid Sajib Feb 26 '20 at 09:53
I did exactly what you described. Unfortunately, it didn't do the trick. – menteith Feb 26 '20 at 09:55
it can do a lots of way. i think it will also works. i said to check variable name. cause there is spelling mistake – GolamMazid Sajib Feb 26 '20 at 09:57

Setting profiles in Spring Boot application based on system property

2 Answers2