func buildAppConfig(kubeClient *kubernetes.Clientset, service v1.Service, routerConfig *RouterConfig) (*AppConfig, error) {
appConfig := newAppConfig(routerConfig)
appConfig.Name = service.Labels["app"]
// If we didn't get the app name from the app label, fall back to inferring the app name from
// the service's own name.
if appConfig.Name == "" {
appConfig.Name = service.Name
}
// if app name and Namespace are not same then combine the two as it
// makes deis services (as an example) clearer, such as deis/controller
if appConfig.Name != service.Namespace {
appConfig.Name = service.Namespace + "/" + appConfig.Name
}
err := modeler.MapToModel(service.Annotations, "", appConfig)
if err != nil {
return nil, err
}
// If no domains are found, we don't have the information we need to build routes
// to this application. Abort.
if len(appConfig.Domains) == 0 {
return nil, nil
}
// Step through the domains, and decide which cert, if any, will be used for securing each.
// For each that is a FQDN, we'll look to see if a corresponding cert-bearing secret also
// exists. If so, that will be used. If a domain isn't an FQDN we will use the default cert--
// even if that is nil.
for _, domain := range appConfig.Domains {
if strings.Contains(domain, ".") {
// Look for a cert-bearing secret for this domain.
if certMapping, ok := appConfig.CertMappings[domain]; ok {
secretName := fmt.Sprintf("%s-cert", certMapping)
certSecret, err := getSecret(kubeClient, secretName, service.Namespace)
if err != nil {
return nil, err
}
if certSecret != nil {
certificate, err := buildCertificate(certSecret, domain)
if err != nil {
return nil, err
}
appConfig.Certificates[domain] = certificate
}
}
} else {
appConfig.Certificates[domain] = routerConfig.PlatformCertificate
}
}
appConfig.ServiceIP = service.Spec.ClusterIP
endpointsClient := kubeClient.Endpoints(service.Namespace)
endpoints, err := endpointsClient.Get(service.Name)
if err != nil {
return nil, err
}
appConfig.Available = len(endpoints.Subsets) > 0 && len(endpoints.Subsets[0].Addresses) > 0
return appConfig, nil
}
