Add custom Nexus Repository OSS to Grails 3 Gradle build

build.gradle

repositories {
  ...
  maven {
    credentials {
      username NEXUS_USERNAME
      password NEXUS_PASSWORD
    }
    url 'https://[my.nexus.repo]/repository/releases/'
  }
}

NEXUS_USERNAME and NEXUS_PASSWORD are project parameters that you can store in gradle.properties file or pass on the command line. You might use it in a build server like:

./gradlew -PNEXUS_USERNAME=[your_username] -PNEXUS_PASSWORD=[your_password] test