Spring Boot Profiles : Configuration based on environment Almost every-time, we need different configuration in different environment, like different servers IPs, different connection pool sizes etc.So how do we deal with it? The solution to this, is to create different profiles for different environments.By different profiles, we mean we can create different configuration for prod and dev environment. We are using Spring Boot 2 with maven. Before starting this, create a spring boot project with web-dependency. Now to add profiles, first we need to list the profiles in pom.xml and define the configuration Define a property name environment : List Profiles in pom As you can see, we have defined two profiles : dev & prod. Also we have activated dev profile by default using <activeByDefault>true</activeByDefault> . Now here we have defined one property name environment. This property needs to be passed if we want to run the project with prod profile : T