public void Dispose()
{
if (_cancellationToken != null && !_cancellationToken.IsCancellationRequested)
{
try
{
_cancellationToken.Cancel();
_resetEvent.Set();
}
catch (Exception ex)
{
_logger.Error("An error occured cancelling the web deploy lease thread.", ex);
}
}
if (_leaseId == null)
{
return;
}
try
{
var blob = AzureRoleEnvironment.WebDeployLeaseBlob();
blob.TryReleaseLease(_leaseId);
blob.Metadata.Remove("InstanceId");
blob.SetMetadata();
_leaseId = null;
}
catch (Exception ex)
{
_logger.Error("An exception occured when attempting to clear the InstanceId from the web deploy lease metadata.", ex);
}
}
/// <summary>
/// Packages sites that are in IIS but not in local temp storage.
/// There are new sites that have been deployed to this instance using Web Deploy.
/// </summary>
public void PackageSitesToLocal()
{
_logger.DebugFormat("[IIS => Local Storage] - Site deploy times: {0}", string.Join(",", _siteDeployTimes.Select(t => t.Key + " - " + t.Value).ToArray()));
using (var serverManager = new ServerManager())
{
foreach (var site in serverManager.Sites.Where(s => !_sitesToExclude.Contains(s.Name)))
{
var siteName = site.Name.Replace("-", ".").ToLowerInvariant();
if (!site.Name.Equals(AzureRoleEnvironment.RoleWebsiteName(), StringComparison.OrdinalIgnoreCase))
{
var sitePath = Path.Combine(_localSitesPath, siteName);
var siteLastModifiedTime = GetFolderLastModifiedTimeUtc(sitePath);
if (!_siteDeployTimes.ContainsKey(siteName))
{
_siteDeployTimes.Add(siteName, siteLastModifiedTime);
}
_logger.DebugFormat("[IIS => Local Storage] - Site last modified time: '{0}'", siteLastModifiedTime);
// If the site has been modified since the last deploy, but not within the last {SyncWait}s (otherwise it might be mid-sync)
if (_siteDeployTimes[siteName] < siteLastModifiedTime && siteLastModifiedTime < DateTime.UtcNow.AddSeconds(-SyncWait))
{
// Update status to deployed
UpdateSyncStatus(siteName, SyncInstanceStatus.Deployed);
// Ensure the temp path exists
var tempSitePath = Path.Combine(_localTempPath, siteName);
if (!Directory.Exists(tempSitePath))
{
Directory.CreateDirectory(tempSitePath);
}
// Create a package of the site and move it to local temp sites
var packageFile = Path.Combine(tempSitePath, siteName + ".zip");
_logger.InfoFormat("[IIS => Local Storage] - Creating a package of the site '{0}' and moving it to local temp sites '{1}'", siteName, packageFile);
try
{
using (var deploymentObject = DeploymentManager.CreateObject(DeploymentWellKnownProvider.DirPath, sitePath))
{
deploymentObject.SyncTo(DeploymentWellKnownProvider.Package, packageFile, new DeploymentBaseOptions(), new DeploymentSyncOptions());
}
_logger.DebugFormat(string.Format("Calling OnSiteUpdated event for {0}...", siteName));
OnSiteUpdated(siteName);
_siteDeployTimes[siteName] = DateTime.UtcNow;
}
catch (Exception ex)
{
UpdateSyncStatus(siteName, SyncInstanceStatus.Error, ex);
throw;
}
}
}
}
}
}
public IEnumerable <SyncStatus> RetrieveSyncStatuses()
{
return(_table.Query
.Where(s => s.PartitionKey.Equals(AzureRoleEnvironment.DeploymentId(), StringComparison.OrdinalIgnoreCase))
.ToList()
.Select(s => s.ToModel())
.ToList());
}
public void Start()
{
_cancellationToken = new CancellationTokenSource();
_resetEvent = new ManualResetEvent(false);
Task.Factory.StartNew(() =>
{
_logger.Debug("Starting web deploy leasing thread...");
while (true)
{
try
{
var blob = AzureRoleEnvironment.WebDeployLeaseBlob();
using (var lease = new AutoRenewLease(_loggerFactory, _logLevel, blob))
{
_logger.DebugFormat("Leasing thread checking...HasLease: {0}", lease.HasLease);
while (lease.HasLease)
{
if (_leaseId != lease.LeaseId)
{
_logger.DebugFormat("This instance ({0}) has the lease, updating blob with the instance ID.", AzureRoleEnvironment.CurrentRoleInstanceId());
blob.Metadata["InstanceId"] = AzureRoleEnvironment.CurrentRoleInstanceId();
blob.SetMetadata(lease.LeaseId);
_leaseId = lease.LeaseId;
}
_resetEvent.WaitOne(TimeSpan.FromSeconds(10));
if (_cancellationToken.IsCancellationRequested)
{
return;
}
}
if (!_cancellationToken.IsCancellationRequested)
{
_leaseId = null;
}
}
_resetEvent.WaitOne(TimeSpan.FromSeconds(30));
if (_cancellationToken.IsCancellationRequested)
{
return;
}
}
catch (Exception ex)
{
_logger.ErrorFormat(ex, "Failed to manage lease on {0}", AzureRoleEnvironment.CurrentRoleInstanceId());
_resetEvent.WaitOne(TimeSpan.FromSeconds(30));
if (_cancellationToken.IsCancellationRequested)
{
return;
}
}
}
}, _cancellationToken.Token);
}
public void Lease_this_instance_for_webdeploy()
{
_service.Start();
Thread.Sleep(TimeSpan.FromSeconds(4));
var hasWebDeployLease = AzureRoleEnvironment.HasWebDeployLease();
Assert.That(hasWebDeployLease, Is.True);
}
private static string GetLocalResourcePathAndSetAccess(string localResourceName)
{
var resourcePath = AzureRoleEnvironment.GetLocalResourcePath(localResourceName);
var localDataSec = Directory.GetAccessControl(resourcePath);
localDataSec.AddAccessRule(new FileSystemAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), FileSystemRights.FullControl, InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit, PropagationFlags.None, AccessControlType.Allow));
Directory.SetAccessControl(resourcePath, localDataSec);
return(resourcePath);
}
public void Release_lease_when_requested()
{
_service.Start();
Thread.Sleep(TimeSpan.FromSeconds(4));
_service.Dispose();
Thread.Sleep(TimeSpan.FromSeconds(2));
var hasWebDeployLease = AzureRoleEnvironment.HasWebDeployLease();
Assert.That(hasWebDeployLease, Is.False);
Assert.That(AzureRoleEnvironment.WebDeployLeaseBlob().Metadata["InstanceId"], Is.Null);
}
protected override void FixtureSetup()
{
base.FixtureSetup();
// RoleEnvironment
AzureRoleEnvironment.DeploymentId = () => "DEPLOYMENTID";
AzureRoleEnvironment.CurrentRoleInstanceId = () => "ROLEINSTANCEID";
// File Resource Paths
var basePath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().CodeBase.Replace("file:///", ""));
_sitePath = Path.Combine(basePath, "Sites");
_tempPath = Path.Combine(basePath, "Temp");
_configPath = Path.Combine(basePath, "Config");
_resourcesPath = Path.Combine(basePath, "_resources");
Directory.CreateDirectory(_sitePath);
Directory.CreateDirectory(_tempPath);
Directory.CreateDirectory(_configPath);
// Website Repository
var factory = new AzureStorageFactory(CloudStorageAccount.DevelopmentStorageAccount);
_repo = new WebSiteRepository(factory);
_webSiteTable = factory.GetTable <WebSiteRow>(typeof(WebSiteRow).Name);
_bindingTable = factory.GetTable <BindingRow>(typeof(BindingRow).Name);
// Clean up IIS and table storage to prepare for test
using (var serverManager = new ServerManager())
{
_excludedSites = new List <string>();
using (var manager = new ServerManager())
{
manager.Sites.Where(s => s.Name != AzureRoleEnvironment.RoleWebsiteName()).ToList().ForEach(s => _excludedSites.Add(s.Name));
}
CleanupWebsiteTest(serverManager);
}
// Sync Service
_syncService = new SyncService(
_repo,
new SyncStatusRepository(factory),
CloudStorageAccount.DevelopmentStorageAccount,
_sitePath,
_tempPath,
new string[] { },
_excludedSites,
() => true,
new IISManager(_sitePath, _tempPath, new SyncStatusRepository(factory), new ConsoleFactory(), LoggerLevel.Debug),
new ConsoleFactory(),
LoggerLevel.Debug
);
}
public void UpdateStatus(string webSiteName, SyncInstanceStatus status, Exception lastError = null)
{
var syncStatus = new SyncStatus
{
SiteName = webSiteName,
RoleInstanceId = AzureRoleEnvironment.CurrentRoleInstanceId(),
DeploymentId = AzureRoleEnvironment.DeploymentId(),
Status = status,
IsOnline = true,
LastError = lastError
};
_table.AddOrUpdate(syncStatus.ToRow());
}
internal static IContainer BuildContainer()
{
var storageAccount = CloudStorageAccount.Parse(AzureRoleEnvironment.GetConfigurationSettingValue("DataConnectionString"));
var logFactory = new NullLogFactory();
const LoggerLevel logLevel = LoggerLevel.Off;
var builder = new ContainerBuilder();
Register(builder, storageAccount, logFactory, logLevel);
builder.RegisterControllers(typeof(ContainerConfig).Assembly);
var container = builder.Build();
DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
return(container);
}
private void RemoveApplications(SiteCollection iisSites, string siteName)
{
var adminSite = iisSites[AzureRoleEnvironment.RoleWebsiteName()];
var applicationsToRemove = from app in adminSite.Applications
where app.Path.EndsWith("/test/" + siteName, StringComparison.OrdinalIgnoreCase) ||
app.Path.EndsWith("/cdn/" + siteName, StringComparison.OrdinalIgnoreCase)
select app;
_logger.InfoFormat("IISManager.Removing Test and CDN applications for site '{0}'", siteName);
foreach (var app in applicationsToRemove.ToArray())
{
adminSite.Applications.Remove(app);
}
}
public static SyncStatusRow ToRow(this SyncStatus model)
{
if (model == null)
{
return(null);
}
var deploymentId = string.IsNullOrWhiteSpace(model.DeploymentId) ? AzureRoleEnvironment.DeploymentId() : model.DeploymentId;
var roleInstanceId = string.IsNullOrWhiteSpace(model.RoleInstanceId) ? AzureRoleEnvironment.CurrentRoleInstanceId() : model.RoleInstanceId;
return(new SyncStatusRow(deploymentId, roleInstanceId, model.SiteName)
{
Status = model.Status.ToString(),
IsOnline = model.IsOnline,
LastError = model.LastError.TraceInformation()
});
}
private void UpdateApplications(WebSite site, ServerManager serverManager, string siteName, string sitePath, ApplicationPool appPool)
{
var iisSites = serverManager.Sites;
var adminSite = iisSites[AzureRoleEnvironment.RoleWebsiteName()];
var testApplication = adminSite.Applications.FirstOrDefault(
app => app.Path.EndsWith("/test/" + siteName, StringComparison.OrdinalIgnoreCase));
var cdnApplication = adminSite.Applications.FirstOrDefault(
app => app.Path.EndsWith("/cdn/" + siteName, StringComparison.OrdinalIgnoreCase));
if (site.EnableTestChildApplication)
{
if (testApplication == null)
{
_logger.InfoFormat("Adding Test application for site '{0}'", siteName);
testApplication = adminSite.Applications.Add("/test/" + siteName, sitePath);
testApplication.ApplicationPoolName = appPool.Name;
}
}
else
{
if (testApplication != null)
{
_logger.InfoFormat("Removing Test application for site '{0}'", siteName);
adminSite.Applications.Remove(testApplication);
}
}
if (site.EnableCDNChildApplication)
{
if (cdnApplication == null)
{
_logger.InfoFormat("Adding CDN application for site '{0}'", siteName);
cdnApplication = adminSite.Applications.Add("/cdn/" + siteName, Path.Combine(sitePath, "cdn"));
cdnApplication.ApplicationPoolName = appPool.Name;
}
}
else
{
if (cdnApplication != null)
{
_logger.InfoFormat("Removing CDN application for site '{0}'", siteName);
adminSite.Applications.Remove(cdnApplication);
}
}
}
public static void ConfigureRole()
{
// Allow multiple simultaneous HTTP request threads
ServicePointManager.DefaultConnectionLimit = 12;
// Allow Azure Storage to always use the latest version of a config setting
CloudStorageAccount.SetConfigurationSettingPublisher((configName, configSetter) =>
{
if (!AzureRoleEnvironment.IsAvailable())
{
configSetter(ConfigurationManager.AppSettings[configName]);
return;
}
configSetter(AzureRoleEnvironment.GetConfigurationSettingValue(configName));
// Apply any changes to config when the config is edited http://msdn.microsoft.com/en-us/library/windowsazure/gg494982.aspx
AzureRoleEnvironment.Changed += (sender, arg) =>
{
if (!arg.Changes.OfType <RoleEnvironmentConfigurationSettingChange>().Any(change => (change.ConfigurationSettingName == configName)))
{
return;
}
if (!configSetter(AzureRoleEnvironment.GetConfigurationSettingValue(configName)))
{
AzureRoleEnvironment.RequestRecycle();
}
};
});
// Configure local resources
var localTempPath = GetLocalResourcePathAndSetAccess(TempLocalResource);
GetLocalResourcePathAndSetAccess(SitesLocalResource);
GetLocalResourcePathAndSetAccess(ExecutionLocalResource);
// WebDeploy creates temporary files during package creation. The default TEMP location allows for a 100MB
// quota (see http://msdn.microsoft.com/en-us/library/gg465400.aspx#Y976).
// For large web deploy packages, the synchronization process will raise an IO exception because the "disk is full"
// unless you ensure that the TEMP/TMP target directory has sufficient space
Environment.SetEnvironmentVariable("TMP", localTempPath);
Environment.SetEnvironmentVariable("TEMP", localTempPath);
}
public SyncService(IWebSiteRepository sitesRepository, ISyncStatusRepository syncStatusRepository, CloudStorageAccount storageAccount, string localSitesPath, string localTempPath, IEnumerable <string> directoriesToExclude, IEnumerable <string> sitesToExclude, Func <bool> syncEnabled, IISManager iisManager, ILoggerFactory loggerFactory, LoggerLevel logLevel)
{
_sitesRepository = sitesRepository;
_syncStatusRepository = syncStatusRepository;
_localSitesPath = localSitesPath;
_localTempPath = localTempPath;
_directoriesToExclude = directoriesToExclude;
_sitesToExclude = sitesToExclude;
_syncEnabled = syncEnabled;
_iisManager = iisManager;
_entries = new Dictionary <string, FileEntry>();
_siteDeployTimes = new Dictionary <string, DateTime>();
_logger = loggerFactory.Create(GetType(), logLevel);
var sitesContainerName = AzureRoleEnvironment.GetConfigurationSettingValue(Constants.WebDeployPackagesBlobContainerKey).ToLowerInvariant();
_container = storageAccount.CreateCloudBlobClient().GetContainerReference(sitesContainerName);
_container.CreateIfNotExist();
}
public void UpdateIISSitesFromTableStorage()
{
var allSites = _sitesRepository.RetrieveWebSitesWithBindings();
if (!AzureRoleEnvironment.IsComputeEmulatorEnvironment())
{
_iisManager.UpdateSites(allSites, _sitesToExclude.ToList());
}
// Cleanup
for (var i = _siteDeployTimes.Count - 1; i >= 0; i--)
{
var siteName = _siteDeployTimes.ElementAt(i).Key;
if (!allSites.Any(s => s.Name.Equals(siteName, StringComparison.OrdinalIgnoreCase)))
{
_siteDeployTimes.Remove(siteName);
_syncStatusRepository.RemoveWebSiteStatus(siteName);
var sitePath = Path.Combine(_localSitesPath, siteName);
var tempSitePath = Path.Combine(_localTempPath, siteName);
FilesHelper.RemoveFolder(sitePath, _logger);
FilesHelper.RemoveFolder(tempSitePath, _logger);
if (_entries.ContainsKey(siteName))
{
// Remove blob
_container.GetBlobReference(siteName).DeleteIfExists();
_container.GetBlobReference(siteName + "/" + siteName + ".zip").DeleteIfExists();
_entries.Remove(siteName);
}
OnSiteDeleted(siteName);
}
}
}
public static string GetExecutionLocalResourcePath()
{
return(AzureRoleEnvironment.GetLocalResourcePath(ExecutionLocalResource));
}
public void UpdateSites(IEnumerable <WebSite> sites, List <string> sitesToIgnore = null)
{
_logger.DebugFormat("Sites list from table: {0}", string.Join(",", sites.Select(s => s.Name)));
using (var serverManager = new ServerManager())
{
var iisSites = serverManager.Sites;
_logger.DebugFormat("Sites list from IIS: {0}", string.Join(",", iisSites.Select(s => s.Name)));
// Find sites that need to be removed
foreach (var iisSite in iisSites.ToArray())
{
var name = iisSite.Name.ToLowerInvariant();
// Never delete "webRoleSiteName", which is the website for this web role
if (!name.Equals(AzureRoleEnvironment.RoleWebsiteName(), StringComparison.OrdinalIgnoreCase) &&
!sites.Select(s => s.Name.ToLowerInvariant()).Contains(name) &&
sitesToIgnore.All(s => name != s.ToLowerInvariant()))
{
// Remove site
_logger.InfoFormat("Removing site '{0}'", iisSite.Name);
serverManager.Sites.Remove(iisSite);
// Remove TEST and CDN applications
RemoveApplications(iisSites, name);
// Remove site path
try
{
var sitePath = Path.Combine(_localSitesPath, iisSite.Name);
var tempSitePath = Path.Combine(_tempSitesPath, iisSite.Name);
FilesHelper.RemoveFolder(sitePath, _logger);
FilesHelper.RemoveFolder(tempSitePath, _logger);
}
catch (Exception e)
{
_logger.Warn("Error removing site path", e);
}
// Remove appPool
var appPool = serverManager.ApplicationPools.SingleOrDefault(ap => ap.Name.Equals(iisSite.Name, StringComparison.OrdinalIgnoreCase));
if (appPool != null)
{
_logger.InfoFormat("Removing app pool '{0}'", appPool.Name);
serverManager.ApplicationPools.Remove(appPool);
}
}
}
try
{
serverManager.CommitChanges();
}
catch (Exception e)
{
_logger.Error("Error committing changes to IIS while updating sites", e);
}
}
foreach (var site in sites)
{
using (var serverManager = new ServerManager())
{
var siteName = site.Name.ToLowerInvariant().Replace(" ", string.Empty);
var iisSite = serverManager.Sites.SingleOrDefault(ap => ap.Name.Equals(siteName, StringComparison.OrdinalIgnoreCase));
var sitePath = Path.Combine(_localSitesPath, siteName);
// Add new sites
if (iisSite == null)
{
// Update Status
_syncStatusRepository.UpdateStatus(siteName, SyncInstanceStatus.NotCreated);
// Create physical path
if (!Directory.Exists(sitePath))
{
Directory.CreateDirectory(sitePath);
}
using (var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("AzureWebFarm.Resources.index.html"))
{
var fileContent = new StreamReader(stream).ReadToEnd().Replace("{WebSiteName}", siteName);
File.WriteAllText(Path.Combine(sitePath, "index.html"), fileContent);
}
using (var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("AzureWebFarm.Resources.site.css"))
{
var fileContent = new StreamReader(stream).ReadToEnd();
File.WriteAllText(Path.Combine(sitePath, "site.css"), fileContent);
}
// Add web site
_logger.InfoFormat("Adding site '{0}'", siteName);
var defaultBinding = site.Bindings.First();
X509Certificate2 cert = null;
if (!String.IsNullOrEmpty(defaultBinding.CertificateThumbprint))
{
cert = GetCertificate(defaultBinding.CertificateThumbprint);
}
if (cert != null)
{
_logger.InfoFormat("Adding website '{0}' with Binding Information '{1}' and Certificate '{2}'", site.Name, defaultBinding.BindingInformation, cert.Thumbprint);
iisSite = serverManager.Sites.Add(
siteName,
defaultBinding.BindingInformation,
sitePath,
cert.GetCertHash());
}
else
{
_logger.InfoFormat("Adding website '{0}' with Binding Information '{1}'", site.Name, defaultBinding.BindingInformation);
iisSite = serverManager.Sites.Add(
siteName,
defaultBinding.Protocol,
defaultBinding.BindingInformation,
sitePath);
}
// Create a new AppPool
var appPool = serverManager.ApplicationPools.SingleOrDefault(ap => ap.Name.Equals(siteName, StringComparison.OrdinalIgnoreCase));
if (appPool == null)
{
_logger.InfoFormat("Adding app pool '{0}' for site '{0}'", siteName);
appPool = serverManager.ApplicationPools.Add(siteName);
appPool.ManagedRuntimeVersion = "v4.0";
appPool.ProcessModel.IdentityType = ProcessModelIdentityType.NetworkService;
}
iisSite.ApplicationDefaults.ApplicationPoolName = appPool.Name;
// Update TEST and CDN applications
UpdateApplications(site, serverManager, siteName, sitePath, appPool);
// Update Sync Status
_syncStatusRepository.UpdateStatus(siteName, SyncInstanceStatus.Created);
}
else
{
// Update TEST and CDN applications
var appPool = serverManager.ApplicationPools.SingleOrDefault(ap => ap.Name.Equals(siteName, StringComparison.OrdinalIgnoreCase));
UpdateApplications(site, serverManager, siteName, sitePath, appPool);
}
// Find bindings that need to be removed
foreach (var binding in iisSite.Bindings.ToArray())
{
if (!site.Bindings.Any(b => AreEqualsBindings(binding, b)))
{
_logger.InfoFormat("Removing binding with protocol '{0}' from website '{1}'", binding.Protocol, site);
iisSite.Bindings.Remove(binding);
}
}
// Add new bindings
foreach (var binding in site.Bindings)
{
var iisBinding = iisSite.Bindings.SingleOrDefault(b => AreEqualsBindings(b, binding));
if (iisBinding == null)
{
X509Certificate2 cert = null;
if (!String.IsNullOrEmpty(binding.CertificateThumbprint))
{
cert = GetCertificate(binding.CertificateThumbprint);
}
if (cert != null)
{
_logger.InfoFormat("Adding Binding '{0}' for website '{1}' with Binding Information '{2}' and Certificate '{3}'", binding.Id, site.Name, binding.BindingInformation, cert.Thumbprint);
iisSite.Bindings.Add(binding.BindingInformation, cert.GetCertHash(), StoreName.My.ToString());
}
else
{
_logger.InfoFormat("Adding Binding '{0}' for WebSite '{1}' with Binding Information '{2}'", binding.Id, site.Name, binding.BindingInformation);
iisSite.Bindings.Add(binding.BindingInformation, binding.Protocol);
}
}
}
try
{
_logger.DebugFormat("Committing updates to IIS for site '{0}'", site.Name);
serverManager.CommitChanges();
}
catch (Exception e)
{
_syncStatusRepository.UpdateStatus(siteName, SyncInstanceStatus.Error, e);
_logger.ErrorFormat(e, "Error committing changes for site '{0}'", site.Name);
}
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
Response.StatusCode = AzureRoleEnvironment.HasWebDeployLease()
? (int)HttpStatusCode.OK
: (int)HttpStatusCode.ServiceUnavailable;
}
public void Dispose()
{
foreach (var syncStatus in _syncStatusRepository.RetrieveSyncStatusByInstanceId(AzureRoleEnvironment.CurrentRoleInstanceId()))
{
syncStatus.IsOnline = false;
_syncStatusRepository.Update(syncStatus);
}
}
public void Not_have_a_webdeploy_lease_initially()
{
Assert.That(AzureRoleEnvironment.HasWebDeployLease(), Is.False);
}
public static string GetSitesLocalResourcePath()
{
return(AzureRoleEnvironment.GetLocalResourcePath(SitesLocalResource));
}
