MetricsConfiguration.kt

package com.thehutgroup.bootstarters.metrics

import io.micrometer.core.instrument.MeterRegistry
import io.micrometer.spring.autoconfigure.MeterRegistryCustomizer
import org.springframework.beans.factory.annotation.Value
import org.springframework.context.annotation.Bean
import org.springframework.context.annotation.Configuration

@Configuration
open class MetricsConfiguration(@Value("\${aws.region}") val region: String,
                                @Value("\${info.build.version}") val buildVersion: String,
                                @Value("\${environment}") val environment: String) {

    @Bean
    fun commonTags() : MeterRegistryCustomizer<MeterRegistry> {
         return MeterRegistryCustomizer {
             registry -> registry.config().commonTags(
                 "region", region,
                 "buildVersion", buildVersion,
                 "environment", environment)
         }
    }
}