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 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());
}
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()
});
}
public void Dispose()
{
foreach (var syncStatus in _syncStatusRepository.RetrieveSyncStatusByInstanceId(AzureRoleEnvironment.CurrentRoleInstanceId()))
{
syncStatus.IsOnline = false;
_syncStatusRepository.Update(syncStatus);
}
}
