/// <summary>
/// Using the Eureka configuration values provided in <paramref name="configuration"/> contact the Eureka server and
/// return all the registered services. The Eureka client is shutdown after contacting the server.
/// </summary>
/// <param name="configuration">configuration values used for configuring the Eureka client</param>
/// <param name="logFactory">optional log factory to use for logging</param>
/// <returns>all registered services</returns>
public static IList <string> GetServices(IConfiguration configuration, ILoggerFactory logFactory = null)
{
EurekaClientOptions config = ConfigureClientOptions(configuration);
var client = GetLookupClient(config, logFactory);
var result = client.GetServicesInternal();
client.ShutdownAsync().GetAwaiter().GetResult();
return(result);
}
internal static EurekaClientOptions ConfigureClientOptions(IConfiguration configuration)
{
var clientConfigsection = configuration.GetSection(EurekaClientOptions.EUREKA_CLIENT_CONFIGURATION_PREFIX);
var clientOptions = new EurekaClientOptions();
clientConfigsection.Bind(clientOptions);
clientOptions.ShouldFetchRegistry = true;
clientOptions.ShouldRegisterWithEureka = false;
return(clientOptions);
}
/// <summary>
/// Using the Eureka configuration values provided in <paramref name="configuration"/> contact the Eureka server and
/// return all the registered services. The Eureka client is shutdown after contacting the server.
/// </summary>
/// <param name="configuration">configuration values used for configuring the Eureka client</param>
/// <param name="logFactory">optional log factory to use for logging</param>
/// <returns>all registered services</returns>
public static IList <string> GetServices(IConfiguration configuration, ILoggerFactory logFactory = null)
{
return(System.Threading.Tasks.Task.Run(() =>
{
EurekaClientOptions config = ConfigureClientOptions(configuration);
var client = GetLookupClient(config, logFactory);
var result = client.GetServices();
client.ShutdownAsync().Wait();
return result;
}).Result);
}
public EurekaServerConfig(EurekaClientOptions options)
{
_options = options;
}
public static void UpdateConfiguration(IConfiguration config, EurekaServiceInfo si, EurekaClientOptions clientOptions)
{
if (clientOptions == null || si == null)
{
return;
}
var uri = si.Uri;
if (!uri.EndsWith(EUREKA_URI_SUFFIX))
{
uri = uri + EUREKA_URI_SUFFIX;
}
clientOptions.EurekaServerServiceUrls = uri;
clientOptions.AccessTokenUri = si.TokenUri;
clientOptions.ClientId = si.ClientId;
clientOptions.ClientSecret = si.ClientSecret;
}
internal static LookupClient GetLookupClient(EurekaClientOptions config, ILoggerFactory logFactory)
{
return(new LookupClient(config, null, logFactory));
}
public EurekaHealthConfig(EurekaClientOptions options)
{
_options = options;
}
/// <summary>
/// Update <see cref="EurekaClientOptions"/> with information from the runtime environment
/// </summary>
/// <param name="config">Application Configuration</param>
/// <param name="si"><see cref="EurekaServiceInfo"/> for bound Eureka server(s)</param>
/// <param name="clientOptions">Eureka client configuration (for interacting with the Eureka Server)</param>
public static void UpdateConfiguration(IConfiguration config, EurekaServiceInfo si, EurekaClientOptions clientOptions)
{
if ((Platform.IsContainerized || Platform.IsCloudHosted) &&
si == null &&
clientOptions.EurekaServerServiceUrls.Contains(EurekaClientConfig.Default_ServerServiceUrl.TrimEnd('/')))
{
throw new InvalidOperationException($"Eureka URL {EurekaClientConfig.Default_ServerServiceUrl} is not valid in containerized or cloud environments. Please configure Eureka:Client:ServiceUrl with a non-localhost address or add a service binding.");
}
if (clientOptions == null || si == null)
{
return;
}
var uri = si.Uri;
if (!uri.EndsWith(EUREKA_URI_SUFFIX))
{
uri += EUREKA_URI_SUFFIX;
}
clientOptions.EurekaServerServiceUrls = uri;
clientOptions.AccessTokenUri = si.TokenUri;
clientOptions.ClientId = si.ClientId;
clientOptions.ClientSecret = si.ClientSecret;
}