public async Task <IActionResult> Get()
{
var healthReport = await _healthCheckService.CheckHealthAsync();
var applications = await _applicationManagementService.GetApplications();
if (applications != null)
{
foreach (var entry in healthReport.Entries)
{
var app = applications.FirstOrDefault(x => x.Name == entry.Key);
if (app != null)
{
if (entry.Value.Status == HealthStatus.Unhealthy)
{
app.IsHealthy = false;
}
else if (entry.Value.Status == HealthStatus.Healthy)
{
app.IsHealthy = true;
}
}
}
_memoryCache.Remove(CacheKey.Applications);
_memoryCache.Set(CacheKey.Applications, applications);
}
return(Ok(healthReport));
}
private void ConfigureRouting(IApplicationBuilder app, ApplicationManagementService applicationManagementService)
{
// This isnt ideal...
var applications = applicationManagementService.GetApplications().Result;
app.UseMvc(routes =>
{
// map any incoming routes for each application
foreach (var application in applications.Where(w => !string.IsNullOrEmpty(w.MainMenuText)))
{
if (application.RequiresAuthorization)
{
routes.MapRoute(
name: $"application-{application.RouteName}-Index",
template: application.RouteName,
defaults: new { controller = "Authorized", action = "Index", application.RouteName }
);
}
else
{
routes.MapRoute(
name: $"application-{application.RouteName}-Index",
template: application.RouteName,
defaults: new { controller = "Application", action = "Index", application.RouteName }
);
}
}
// add the default route
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
}
private void AddHealthChecks(IServiceCollection services, ApplicationManagementService applicationManagementService)
{
services.AddHealthChecksUI();
var healthChecks = services.AddHealthChecks().AddCheck("self", () => HealthCheckResult.Healthy());
var applications = applicationManagementService.GetApplications().Result;
var canCheck = applications.Where(w => !string.IsNullOrEmpty(w.HealthCheckUrl)).ToList();
canCheck.ForEach(f => healthChecks.AddUrlGroup(new Uri(f.HealthCheckUrl), name: f.Name, tags: new string[] { $"{f.RouteName}-api" }));
services.Configure <HealthCheckPublisherOptions>(options =>
{
options.Period = new TimeSpan(0, 0, 4);
options.Delay = TimeSpan.FromSeconds(2);
options.Timeout = new TimeSpan(0, 0, 10);
// options.Predicate = (check) => check.Tags.Contains("ready");
});
const string HealthCheckServiceAssembly = "Microsoft.Extensions.Diagnostics.HealthChecks.HealthCheckPublisherHostedService";
services.TryAddEnumerable(
ServiceDescriptor.Singleton(typeof(IHostedService),
typeof(HealthCheckPublisherOptions).Assembly
.GetType(HealthCheckServiceAssembly)));
services.AddSingleton <IHealthCheckPublisher, ReadinessPublisher>();
}
public async Task <IViewComponentResult> InvokeAsync()
{
var vm = new ApplicationNavigationMenuViewModel();
var applications = await _applicationManagementService.GetApplications();
vm.Applications = applications.Where(x => x.IsOnline && x.IsRegistered && x.IsHealthy).ToList();
return(View(vm));
}
private async Task SetApplicationContextAsync(string applicationName)
{
var applications = await _applicationManagementService.GetApplications();
_applicationService.Application = applications.FirstOrDefault(f => string.Compare(f.Name, applicationName, true) == 0);
ViewData["CorrelationId"] = _correlationContextAccessor.CorrelationContext.CorrelationId;
_logger.LogInformation($"Loaded application for name: {applicationName}: {_applicationService.Application.MainMenuText}: {_correlationContextAccessor.CorrelationContext.CorrelationId}");
_pageViewModel = MapApplicationToPageViewModel(_applicationService.Application);
_applicationService.BearerToken = (User.Identity.IsAuthenticated ? await HttpContext.GetTokenAsync("id_token") : null);
_applicationService.User = User;
_applicationService.RequestBaseUrl = string.Format("{0}://{1}{2}", Request.Scheme, Request.Host, Url.Content("~"));
if (_applicationService.Application == null)
{
ModelState.AddModelError(string.Empty, "Internal error: Missing Application definition");
}
else
{
if (string.IsNullOrEmpty(_applicationService.Application.RootUrl))
{
ModelState.AddModelError(string.Empty, $"Application context error: ({_applicationService.Application.Title}) Missing RootUrl definition");
}
if (string.IsNullOrEmpty(_applicationService.Application.HealthCheckUrl))
{
ModelState.AddModelError(string.Empty, $"Application context error: ({_applicationService.Application.Title}) Missing HealthCheckUrl definition");
}
if (string.IsNullOrEmpty(_applicationService.Application.EntrypointUrl))
{
ModelState.AddModelError(string.Empty, $"Application context error: ({_applicationService.Application.Title}) Missing EntrypointUrl definition");
}
if (_applicationService.Application.ShowSideBar && string.IsNullOrEmpty(_applicationService.Application.SidebarUrl))
{
ModelState.AddModelError(string.Empty, $"Application context error: ({_applicationService.Application.Title}) Missing SidebarUrl definition");
}
}
if (ModelState.IsValid && !string.IsNullOrEmpty(_applicationService.Application.HealthCheckUrl))
{
await _applicationService.HeathCheckAsync();
if (!_applicationService.Health.IsHealthy)
{
ModelState.AddModelError(string.Empty, $"{_applicationService.Health.UnHealthyClue}: ({_applicationService.Application.Title})");
}
}
}
