public SpringBootAdminClientHostedService(SpringBootAdminClientOptions options, ManagementEndpointOptions mgmtOptions, HealthEndpointOptions healthOptions, HttpClient httpClient = null, ILogger logger = null)
{
_options = options;
_mgmtOptions = mgmtOptions;
_healthOptions = healthOptions;
_httpClient = httpClient ?? HttpClientHelper.GetHttpClient(_options.ValidateCertificates, _options.ConnectionTimeoutMS);
_logger = logger ?? NullLogger.Instance;
}
/// <summary>
/// Register the application with a Spring-Boot-Admin server
/// </summary>
/// <param name="builder"><see cref="IApplicationBuilder"/></param>
/// <param name="configuration">App configuration. Will be retrieved from builder.ApplicationServices if not provided</param>
/// <param name="httpClient">A customized HttpClient. [Bring your own auth]</param>
public static void RegisterWithSpringBootAdmin(this IApplicationBuilder builder, IConfiguration configuration = null, HttpClient httpClient = null)
{
if (builder is null)
{
throw new ArgumentNullException(nameof(builder));
}
if (configuration is null)
{
configuration = builder.ApplicationServices.GetRequiredService <IConfiguration>();
}
var logger = builder.ApplicationServices.GetService <ILogger <SpringBootAdminClientOptions> >();
var appInfo = builder.ApplicationServices.GetApplicationInstanceInfo();
var options = new SpringBootAdminClientOptions(configuration, appInfo);
var mgmtOptions = new ManagementEndpointOptions(configuration);
var healthOptions = new HealthEndpointOptions(configuration);
var basePath = options.BasePath.TrimEnd('/');
httpClient ??= HttpClientHelper.GetHttpClient(options.ValidateCertificates, ConnectionTimeoutMs);
var app = new Application()
{
Name = options.ApplicationName ?? "Steeltoe",
HealthUrl = new Uri($"{basePath}{mgmtOptions.Path}/{healthOptions.Path}"),
ManagementUrl = new Uri($"{basePath}{mgmtOptions.Path}"),
ServiceUrl = new Uri($"{basePath}/"),
Metadata = new Dictionary <string, object> {
{ "startup", DateTime.Now }
},
};
app.Metadata.Merge(options.Metadata);
var lifetime = builder.ApplicationServices.GetService <IHostApplicationLifetime>();
lifetime.ApplicationStarted.Register(() =>
{
logger?.LogInformation("Registering with Spring Boot Admin Server at {0}", options.Url);
var result = httpClient.PostAsJsonAsync($"{options.Url}/instances", app).GetAwaiter().GetResult();
if (result.IsSuccessStatusCode)
{
RegistrationResult = result.Content.ReadFromJsonAsync <RegistrationResult>().GetAwaiter().GetResult();
}
else
{
logger.LogError($"Error registering with SpringBootAdmin {result}");
}
});
lifetime.ApplicationStopped.Register(() =>
{
if (RegistrationResult == null || string.IsNullOrEmpty(RegistrationResult.Id))
{
return;
}
_ = httpClient.DeleteAsync($"{options.Url}/instances/{RegistrationResult.Id}").GetAwaiter().GetResult();
});
}