publishing2.gradle

import com.amazonaws.auth.profile.ProfileCredentialsProvider
initscript {
    dependencies {
        classpath 'com.amazonaws:aws-java-sdk-core:1.11.5'
    }
}

publishing {
    repositories {
        maven {
            name "s3-repo"
            ext {
                awsCredentials = new ProfileCredentialsProvider("buildtool").credentials
            }
            url "s3://MY_BUCKET_NAME/maven-repo" 
            credentials(AwsCredentials) {
                accessKey awsCredentials.AWSAccessKeyId
                secretKey awsCredentials.AWSSecretKey
            }
        }
    }
}