protected override Task <Result> ExecuteCoreAsync(Request request)
{
this.Logger.LogInformation("Executing Health Check configuration for HealthCheckMode {HealthCheckMode} and FailNumberOfTimes {FailNumberOfTimes}", request.HealthCheckMode.ToString(), request.FailNextNumberOfTimes);
ConfigurableHealthCheck.Configure(request.HealthCheckMode, request.FailNextNumberOfTimes);
return(Task.FromResult(new Result {
HealthCheckMode = ConfigurableHealthCheck.Mode, FailNextNumberOfTimes = ConfigurableHealthCheck.FailNextNumberOfTimes, History = ConfigurableHealthCheck.History
}));
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env, AppSettings appSettings)
{
if (!string.IsNullOrWhiteSpace(appSettings.PathBase))
{
try
{
app.UsePathBase(appSettings.PathBase);
// Note: using the path base middleware as above doesn't work if a proxy actually strips the incoming path:
// the middleware only sets the request path base if the incoming request does in fact start with it.
// E.g. when a proxy forwards "/app/foo" to "/foo" and the middleware is configured with "/app" as the
// path base, then it will not set the request path base to "/app" because the incoming request is seen as
// "/foo" and does not start with "/app". This will result in incorrect relative URL's etc.
// To cover for this scenario as well, we also explicitly set the configured path base on each request directly,
// regardless of whether or not the incoming request had it.
// See https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/proxy-load-balancer?view=aspnetcore-3.1#deal-with-path-base-and-proxies-that-change-the-request-path
// and https://github.com/dotnet/aspnetcore/blob/2b7e994b8a304700a09617ffc5052f0d943bbcba/src/Http/Http.Abstractions/src/Extensions/UsePathBaseMiddleware.cs#L54.
var pathBase = new PathString(appSettings.PathBase);
app.Use((context, next) =>
{
context.Request.PathBase = pathBase;
return(next.Invoke());
});
}
catch (Exception exc)
{
appSettings.ErrorMessage = $"Cannot apply \"PathBase\" configuration setting: {exc.Message}";
}
}
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler("/Error");
}
app.UseStaticFiles();
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapRazorPages();
endpoints.MapControllers();
endpoints.MapHealthChecks(ConfigurableHealthCheck.HealthCheckPath);
});
ConfigurableHealthCheck.Configure(appSettings.DefaultHealthCheckMode, appSettings.DefaultHealthCheckFailNumberOfTimes);
}