public async Task Invoke(HttpContext httpContext, WebScriptHostManager manager)
{
// in standby mode, we don't want to wait for host start
bool bypassHostCheck = WebScriptHostManager.InStandbyMode;
if (!bypassHostCheck)
{
bool hostReady = await manager.DelayUntilHostReady();
if (!hostReady)
{
httpContext.Response.StatusCode = StatusCodes.Status503ServiceUnavailable;
await httpContext.Response.WriteAsync("Function host is not running.");
return;
}
}
if (StandbyManager.IsWarmUpRequest(httpContext.Request))
{
await StandbyManager.WarmUp(httpContext.Request, _scriptHostManager);
}
await _next.Invoke(httpContext);
}
public async Task DelayUntilHostReady_HostNotRunning_Returns503()
{
var settingsManager = ScriptSettingsManager.Instance;
var eventManager = new Mock <IScriptEventManager>();
var managerMock = new Mock <WebScriptHostManager>(MockBehavior.Strict, new ScriptHostConfiguration(),
new TestSecretManagerFactory(), eventManager.Object, settingsManager, new WebHostSettings {
SecretsPath = _secretsDirectory.Path
},
null, NullLoggerFactory.Instance, null, null, null, null, null, 1, 50);
managerMock.SetupGet(p => p.State).Returns(ScriptHostState.Default);
managerMock.SetupGet(p => p.LastError).Returns((Exception)null);
var ex = await Assert.ThrowsAsync <HttpException>(async() => await WebScriptHostManager.DelayUntilHostReady(managerMock.Object, 1, 50));
Assert.Equal(HttpStatusCode.ServiceUnavailable, (HttpStatusCode)ex.StatusCode);
}
public async Task Invoke(HttpContext httpContext, WebScriptHostManager manager)
{
using (Logger.VerifyingHostAvailabilityScope(_logger, httpContext.TraceIdentifier))
{
Logger.InitiatingHostAvailabilityCheck(_logger);
bool hostReady = await manager.DelayUntilHostReady(throwOnFailure : false);
if (!hostReady)
{
Logger.HostUnavailableAfterCheck(_logger);
httpContext.Response.StatusCode = StatusCodes.Status503ServiceUnavailable;
await httpContext.Response.WriteAsync("Function host is not running.");
return;
}
Logger.HostAvailabilityCheckSucceeded(_logger);
await _next.Invoke(httpContext);
}
}
public async Task <IActionResult> GetInstanceStatus([FromQuery] int timeout = int.MaxValue)
{
return(await _scriptHostManager.DelayUntilHostReady(timeoutSeconds : timeout)
? Ok()
: StatusCode(StatusCodes.Status503ServiceUnavailable));
}
