Maven profile

When we need to deploy application on multiple platforms like QA, UAT, DEV, Prod.

And according to environment we  have properties file which maintain info of db connection or any third party application URL.

In this case if CI/CD implemented our application should be designed in such manner that build will automatically pick  the properties file based on the environment.

To achieve this we need to configure maven profile.

Steps to add maven profile

1.     Add following in pom.xml
    <profiles>
         <profile>
         <id>dev</id>
         <properties>
     <activatedProperties>dev</activatedProperties>
        </properties>
         <activation>
     <activeByDefault>true</activeByDefault>
     </activation>
     </profile>
     <profile>
     <id>uat</id>
    <properties>
    <activatedProperties>uat</activatedProperties>
     </properties>
     </profile>
     <profile>
     <id>prod</id>
    <properties>
    <activatedProperties>prod</activatedProperties>
     </properties>
    </profile>
</profiles>

2. Create properties file for each environment like below :

    application-dev.properties
    application-uat.properties
    application-prod.propeties

3 .    Add application.properties file containing the below line
        spring.profiles.active=@activatedProperties@


Command to make build for particular environment
mvn clean install -P dev     //  We can provide any environment based on our choice