I had a hard time trying to get some diagnostics from a RoleEntryPoint.
I was doing some setup in this entry point and getting some errors.
So I tought, mmmm: this is a Task for the super Azure DiagnosticMonitor.
And I added a bunch of Trace statements and waited to get some output in my WADLogsTables,
but NOTHING!!! ZERO NILCH! NADA!!
I took me a while to get to it. So
This is the things. I had to do.
1. First add a file called WaIISHost.exe.config
2. Add the Azure Diagnostics Trace Listener
<add name="AzureDiagnostics" type="Microsoft.WindowsAzure.Diagnostics.DiagnosticMonitorTraceListener, Microsoft.WindowsAzure.Diagnostics, Version=22.214.171.124, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
<filter type="" />
3. And very very important, you must go to Copy to Output Directory property for this file and set it to Copy Always.
4. And another thing that you need is a lot of patience. The Diagnostics infraestructure takes a while.
So you add a Thread.Sleep after the Start call
5. After you do that you will be able to collect some information from the WADLogsTables
Are que getting null or empty with some Request.ServerVariables
When you convert your ASP application to run on Windows Azure it is a good
to put attention to the methods that are used to get the user IP Address.
Normally the recommendation will be to use Request.UserHostAddress however
our friend Alex has found that this property can return null or empty.
After some research Alex found that there are several scenarios under which
you must check both the REMOTE_ADDR and the HTTP_X_FORWARD_FOR server variables:
A possible code snipped that can provide a value for the client address can be:
public static string ReturnIP()
var request = System.Web.HttpContext.Current.Request;
var ServerVariables_HTTP_X_FORWARDED_FOR = (String)request.ServerVariables["HTTP_X_FORWARDED_FOR"];
var ServerVariables_REMOTE_ADDR = (String)request.ServerVariables["REMOTE_ADDR"];
string ip = "127.0.0.1";
if (!string.IsNullOrEmpty(ServerVariables_HTTP_X_FORWARDED_FOR) &&
ServerVariables_HTTP_X_FORWARDED_FOR = ServerVariables_HTTP_X_FORWARDED_FOR.Trim();
string ipRange = ServerVariables_HTTP_X_FORWARDED_FOR.Split(',');
ip = ipRange;
else if (!string.IsNullOrEmpty(ServerVariables_REMOTE_ADDR))
ServerVariables_REMOTE_ADDR = ServerVariables_REMOTE_ADDR.Trim();
ip = ServerVariables_REMOTE_ADDR;
In the previous code the HTTP_X_FORWARDED_FOR value is examined first and if it is not null or unknown then ip address of the client
is gotten from there.
I have been playing around with one of my test Azure Web Roles to determine
if it is possible to run it inside Azure, using a Web Role not just a VM Role.
So far I have been able to run Coldfusion 8 in a Web Role, but I have not been able to fully automate this task,
I had to do a remote desktop to the Web Role and perform the following tasks:
Add Features to the Web Roles particulary II6 Management Compatibility
Make sure that the Handlers for CFM, CFML, CFC are inplace