private IList <IServiceInstance> GetNamespacedServiceInstances(EndpointSubsetNs es, string serviceId)
{
var k8SNamespace = es.Namespace;
var subsets = es.EndpointSubsets;
var instances = new List <IServiceInstance>();
if (subsets.Any())
{
var service = KubernetesClient.ListNamespacedService(
namespaceParameter: k8SNamespace,
fieldSelector: $"metadata.name={serviceId}").Items.FirstOrDefault();
var serviceMetadata = GetServiceMetadata(service);
var metadataProps = _discoveryOptions.CurrentValue.Metadata;
foreach (var subset in subsets)
{
// Extend the service metadata map with per-endpoint port information (if requested)
var endpointMetadata = new Dictionary <string, string>(serviceMetadata);
if (metadataProps.AddPorts)
{
var ports = subset.Ports
.Where(p => !string.IsNullOrWhiteSpace(p.Name))
.ToDictionary(p => p.Name, p => p.Port.ToString());
var portMetadata = GetDictionaryWithPrefixedKeys(ports, metadataProps.PortsPrefix);
foreach (var portMetadataRecord in portMetadata)
{
endpointMetadata.Add(portMetadataRecord.Key, portMetadataRecord.Value);
}
}
var addresses = subset.Addresses;
foreach (var endpointAddress in addresses)
{
string instanceId = null;
if (endpointAddress.TargetRef != null)
{
instanceId = endpointAddress.TargetRef.Uid;
}
var endpointPort = FindEndpointPort(subset);
instances.Add(
new KubernetesServiceInstance(
instanceId,
serviceId,
endpointAddress,
endpointPort,
endpointMetadata,
_isServicePortSecureResolver.Resolve(new Input(service?.Metadata.Name, endpointPort.Port, service?.Metadata.Labels, service?.Metadata.Annotations))));
}
}
}
return(instances);
}
private EndpointSubsetNs GetSubsetsFromEndpoints(V1Endpoints endpoints)
{
// Start with config or default
var es = new EndpointSubsetNs {
Namespace = _discoveryOptions.CurrentValue.Namespace ?? DefaultNamespace
};
if (endpoints?.Subsets == null)
{
return(es);
}
es.Namespace = endpoints.Metadata.NamespaceProperty;
es.EndpointSubsets = endpoints.Subsets;
return(es);
}
