In the part 1 we have finished a Rails application name "RubyonAzure" as described in the link below:

http://blogs.msdn.com/b/avkashchauhan/archive/2011/04/26/ruby-on-rails-in-windows-azure-part-1-setting-up-ruby-on-rails-in-windows-7-machine-with-test-rails-application.aspx

Now to create Windows Azure Application, I took the Simon Davies written base sample from the link below:

http://archive.msdn.microsoft.com/railsonazure

 I am using the Simon Davies sample base application and then making changed to get it working on Ruby 1.9.2 and Rails 3.0.7. The solution in VS2010 looks as below:

If you open the RR application you will see two folders:

1.       RailsApp folder:  It will include your Rails Application

2.       Ruby Folder: This will include Ruby\Bin and Ruby\Lib folder

Now include the Ruby\Bin and Ruby\Lib files  in above Ruby Folder:

Note: Please remove the following folder as this is not needed and your package will be very smaller comparatively.

            ruby\gems\1.9.1\doc

Now copy RubyonAzure project in “RailsApp” folder:

Now let’s include “Ruby” Folder in the VS2010 Solution as below:

Note: Ruby\lib folder is about 90MB so it will take good amount of time to include this folder in the VS2010 solution. If you remove \Ruby\lib\ruby\gems\1.9.1\doc from the original Ruby\Lib folder it will take about 1 hours to add all the files from the Ruby\Lib folder. 

Now let’s Include RailsApp folder in the Solution as below:

Now Open the Service Configuration (ServiceConfiguration.cscfg) and add the following:

<?xml version="1.0"?>

<ServiceConfiguration serviceName="RW" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceConfiguration">

  <Role name="RR">

    <Instances count="1" />

    <ConfigurationSettings>

      <Setting name="DiagnosticsConnectionString" value="DefaultEndpointsProtocol=https;AccountName=<Storage_Account_Name>;AccountKey=Storage_Account_Key” />

      <Setting name="StorageAccount" value="DefaultEndpointsProtocol=https;AccountName=<Storage_Account_Name>;AccountKey= Storage_Account_Key" />

      <Setting name="RubyFolder" value="Ruby" />

      <Setting name="AppFolder" value="RailsApp" />

      <Setting name="OutputContainer" value="testoutput" />

      <Setting name="Microsoft.WindowsAzure.Plugins.Diagnostics.ConnectionString" value="DefaultEndpointsProtocol=https;AccountName=<Storage_Account_Name>;AccountKey=Storage_Account_Key" />

      <Setting name="Microsoft.WindowsAzure.Plugins.RemoteAccess.Enabled" value="true" />

      <Setting name="Microsoft.WindowsAzure.Plugins.RemoteAccess.AccountUsername" value="avkash" />

      <Setting name="Microsoft.WindowsAzure.Plugins.RemoteAccess.AccountEncryptedPassword" value="***********************ENCRYPTED_PASSWORD**************************" />

      <Setting name="Microsoft.WindowsAzure.Plugins.RemoteAccess.AccountExpiration" value="2011-05-08T23:59:59.0000000-07:00" />

      <Setting name="Microsoft.WindowsAzure.Plugins.RemoteForwarder.Enabled" value="true" />

    </ConfigurationSettings>

    <Certificates>

      <Certificate name="Microsoft.WindowsAzure.Plugins.RemoteAccess.PasswordEncryption" thumbprint="*****************************************" thumbprintAlgorithm="sha1" />

    </Certificates>

  </Role>

</ServiceConfiguration>

Now Open Service Definition (ServiceDefinition.csdef) and include the following:

<?xml version="1.0" encoding="utf-8"?>

<ServiceDefinition name="RW" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceDefinition">

  <WorkerRole name="RR" enableNativeCodeExecution="true">

    <ConfigurationSettings>

      <Setting name="DiagnosticsConnectionString" />

      <Setting name="RubyFolder" />

      <Setting name="AppFolder" />

      <Setting name="StorageAccount" />

      <Setting name="OutputContainer" />

    </ConfigurationSettings>

    <Endpoints>

      <InputEndpoint name="Server" port="80" protocol="tcp" />

    </Endpoints>

    <LocalResources>

      <LocalStorage cleanOnRoleRecycle="false" name="App" sizeInMB="200" />

    </LocalResources>

    <Certificates>

    </Certificates>

    <Imports>

      <Import moduleName="Diagnostics" />

      <Import moduleName="RemoteAccess" />

      <Import moduleName="RemoteForwarder" />

    </Imports>

  </WorkerRole>

</ServiceDefinition>

In the VS2010 based Solution, I have already included the Ruby 1.9.2 and Rails 3.0.0 which is located in Ruby folder. Your RubyonRails application is located in RailsApp folder inside the application.

Worker Role Source Study:

Step 1: When the Worker Role Starts, we copy Ruby + Rails files and our Ruby app application in two sub steps:

1.       In step 1, we copy Ruby (Bin and Lib) folder to Worker Role Local storage folder name \Ruby

2.       In step 2, we copy our RubyonRails application to Worker Role local Storage folder name \RailsApp

The code responsible for it is as below:

string rubyFolderName = RoleEnvironment.GetConfigurationSettingValue("RubyFolder");

if (localStorageRoot.FullName.EndsWith("\\") == false)

      this.rubyLocation=string.Format("{0}\\{1}",localStorageRoot.FullName,rubyFolderName);

else

      this.rubyLocation = string.Format("{0}{1}", localStorageRoot.FullName, rubyFolderName);

CopyFolder(string.Format("{0}\\{1}", this.roleRoot, rubyFolderName), this.rubyLocation);

            

string appFolderName = RoleEnvironment.GetConfigurationSettingValue("AppFolder");

if (localStorageRoot.FullName.EndsWith("\\") == false)

      this.appLocation = string.Format("{0}\\{1}", localStorageRoot.FullName, appFolderName);

else

      this.appLocation = string.Format("{0}{1}", localStorageRoot.FullName, appFolderName);

CopyFolder(string.Format("{0}\\{1}", this.roleRoot, appFolderName), this.appLocation);



this.endPoint  = RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["Server"].IPEndpoint;



// Start the server

StartProcess();

Step 2: Once above Ruby + Rails & our Ruby application copy process is completed we launch the Ruby application as below:

ProcessStartInfo spawnedProcessInfo = new ProcessStartInfo();

spawnedProcessInfo.UseShellExecute = false;

spawnedProcessInfo.WorkingDirectory = this.appLocation;

spawnedProcessInfo.CreateNoWindow = true;

//string args = String.Format(@"script\server --port {0} --binding {1}", this.endPoint.Port, this.endPoint.Address); // This is old code

// changed by Avkash to get it working

string args = String.Format(@"script\rails server --port {0} --binding {1}", this.endPoint.Port, this.endPoint.Address);

LogInfo(@"Arguments: {0}", args);

spawnedProcessInfo.Arguments = args;

spawnedProcessInfo.FileName = Path.Combine(this.rubyLocation, @"bin\Ruby ");

spawnedProcessInfo.RedirectStandardError = true;

spawnedProcessInfo.RedirectStandardOutput = true;

            

            //Run It

Process spawnedProcess = new Process();

spawnedProcess.ErrorDataReceived += new DataReceivedEventHandler(spawnedProcess_ErrorDataReceived);

spawnedProcess.OutputDataReceived += new DataReceivedEventHandler(spawnedProcess_OutputDataReceived);

spawnedProcess.StartInfo = spawnedProcessInfo;



if (spawnedProcess.Start()) // This line Execute the process as >Ruby script\rails server –-port <Role_Port> --binding <Role_IP_Address>

{

    this.id = spawnedProcess.Id;



    spawnedProcess.BeginErrorReadLine();

    spawnedProcess.BeginOutputReadLine();

    LogInfo("Process Id {0} Started",this.id);

}

Note: When you are running this application in Development Fabric please set the following

      <Setting name="DiagnosticsConnectionString" value="UseDevelopmentStorage=true” />

      <Setting name="StorageAccount" value="UseDevelopmentStorage=true" />

Now run the application in the development fabric and you will see the following results in Compute Emulator UI:

Using the IP address and Port available in Computer Emulator we can launch the browser to check our application:

Now you can package this application and deploy on Cloud to test as below:

Note: Before packaging the application, please be sure to set your data connection string to your correct Windows Azure Storage

      <Setting name="DiagnosticsConnectionString" value="DefaultEndpointsProtocol=https;AccountName=<Storage_Account_Name>;AccountKey=Storage_Account_Key” />

      <Setting name="StorageAccount" value="DefaultEndpointsProtocol=https;AccountName=<Storage_Account_Name>;AccountKey= Storage_Account_Key" />

      <Setting name="Microsoft.WindowsAzure.Plugins.Diagnostics.ConnectionString" value="DefaultEndpointsProtocol=https;AccountName=<Storage_Account_Name>;AccountKey=Storage_Account_Key" />

After publishing the Windows Azure Application in cloud you can verify it running  as below:

You can download the Windows Azure SDK 1.4 based VS2010  Solution from the link below (This sample includes Ruby 1.9.2 and Rails 3.0.7 package as well):

http://rubyonrailsinazure.codeplex.com/