/// <summary>
/// Get and cache all known and available services using service discovery.
/// </summary>
private async Task ResolvePollingServices(List <string> serviceIdentifiers)
{
var serviceResultTasks = new List <Task>(serviceIdentifiers.Count);
Logger.LogInformation($"{nameof(ResolvePollingServices)}: Resolving services for polling...");
foreach (var identifier in serviceIdentifiers)
{
Logger.LogInformation($"{nameof(ResolvePollingServices)}: Testing service '{identifier}'...");
serviceResultTasks
.Add(_serviceResolution.ResolveService(serviceName: identifier)
.ContinueWith(x =>
{
if (!x.IsCompleted)
{
Logger.LogError($"{nameof(ResolveServicesState)}: Failure resolving service '{identifier}'; {x.Exception.GetBaseException().Message}");
return;
}
var serviceResult = x.Result;
if (string.IsNullOrEmpty(serviceResult.Endpoint) ||
serviceResult.Endpoint.Contains("localhost") ||
serviceResult.Endpoint.Contains("healthz"))
{
Logger.LogDebug($"{nameof(ResolvePollingServices)}: Filtering out service '{identifier}' ({serviceResult.Endpoint}) from the polling services list.");
return;
}
Logger.LogInformation($"{nameof(ResolvePollingServices)}: Found service '{identifier}' listening on '{serviceResult.Endpoint}'");
_healthCheckState.AddPollingService(new Service(identifier, serviceResult.Endpoint));
}));
}
await Task.WhenAll(serviceResultTasks);
}
