Reference for gradle-play-publisher configuration

build.gradle (App's level)

apply plugin: 'com.android.application'
apply plugin: 'com.github.triplet.play'

android {
  signingConfigs {
    release {
      keyAlias 'keystore'
      keyPassword 'password'
      storeFile file('../keystore.jks')
      storePassword 'password'
    }
  }
  buildTypes {
    release {
      minifyEnabled false
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
      signingConfig signingConfigs.release
    }
  }
  sourceSets {
    main.java.srcDirs += 'src/main/kotlin'
  }
}

play {
  serviceAccountEmail = 'triple-t-gallery-mvp@api-project-298062141817.iam.gserviceaccount.com'
  pk12File = file('Google Play Android Developer-a06a99479213.p12')
  track = 'beta'
}