ConfigurationController.groovy

// in bootstrap.yml is defined spring.cloud.config.server.prefix = /config and client microservice call to
// org.springframework.cloud.config.server.resource.ResourceController. So in UrlMappings we need write our 
// mapping for call - get "/config/${serviceName}/${profile}"(controller: 'configuration', action: 'config')
    
def config(String serviceName, String profile) {

    def propertySources = [:]
    propertySources.name = "${serviceName}.properties"
    propertySources.source = [:]
      
    // read from db all configurations for requested service 
    ["application", "application-${profile}", "${serviceName}-${profile}"].each { configName ->
        Configuration configuration = Configuration.findByName(configName)
        if (configuration) {
            configuration.configLines?.each { line ->
                if (line) {
                    propertySources.source.put(line.label, line.value)
                }
            }
        }
    }

    def environment = [name           : "${serviceName}", profiles: ["${profile}"], "label": null, "version": null, "state": null,
                       propertySources: [propertySources]]

    render(text: environment as JSON, contentType: "application/json")
}