/// <summary>
/// Worker role on start event
/// </summary>
/// <returns>Result of on start</returns>
public override bool OnStart()
{
ServicePointManager.DefaultConnectionLimit = this.defaultConnectionLimit;
RoleEnvironment.Changing += this.RoleEnvironmentChanging;
this.container = IoC.Initialize();
this.log = this.container.GetInstance <ILog>();
var registry = new WindowsRegistry(this.log);
registry.ConfigureLocalTcpSettings();
bool result = base.OnStart();
return(result);
}
/// <summary>
/// Some initial configuration before starting the web service
/// </summary>
/// <returns>A value indicating whether the web role has started</returns>
public override bool OnStart()
{
try
{
// In Azure, Web role initialization runs in a separate process from the ASP.NET stack
// There is no need to create a separate IoC container for this process. Instead, we just
// create the objects we need right here.
this.log = new Log(LogDestination.EventSource, Log.DefaultCategoryName);
var registry = new WindowsRegistry(this.log);
if (!RoleEnvironment.IsEmulated)
{
// Make configuration changes to avoid this application pool from being killed periodically.
// Make configuration changes to accept X509 client certificates in SSL connections.
// Both changes require <Runtime executionContext="elevated" /> in the <WebRole> element in ServiceDefinition.csdef
using (ServerManager serverManager = new ServerManager())
{
foreach (var app in serverManager.Sites.SelectMany(x => x.Applications))
{
// issues a fake request that causes our app code to load into memory on web service start
app["preloadEnabled"] = true;
}
foreach (var appPool in serverManager.ApplicationPools)
{
// tells W3SVC to automatically start the application pool when IIS starts
appPool.AutoStart = true;
// tells WAS to always start the application pool
appPool["startMode"] = "AlwaysRunning";
// tells WWW service to not shutdown the application pool due to no requests coming in
appPool.ProcessModel.IdleTimeout = TimeSpan.Zero;
// tells IIS to not automatically restart the application pool (default is every 29 hours)
appPool.Recycling.PeriodicRestart.Time = TimeSpan.Zero;
}
// set SSL flags to accept client certificates
var siteName = RoleEnvironment.CurrentRoleInstance.Id + "_Web";
var config = serverManager.GetApplicationHostConfiguration();
var accessSection = config.GetSection("system.webServer/security/access", siteName);
// SslNegotiateCert means "the site or application accepts client certificates for authentication"
accessSection["sslFlags"] = @"SslNegotiateCert";
// write changes
serverManager.CommitChanges();
}
// Configure registry settings to allow better TCP port reuse
registry.ConfigureLocalTcpSettings();
}
}
catch (Exception e)
{
this.log.LogError(e);
}
return(base.OnStart());
}
