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Overview of Command Line Deployment and Management with the Windows Azure SDK for PHP

June 7, 2012 update: The Microsoft Windows Azure team has released a new Windows Azure SDK for PHP. This release is part of an effort to keep PHP client libraries up to date with new Windows Azure features and to make PHP a first-class citizen in Windows Azure. The latest client libraries are on GitHub: https://github.com/WindowsAzure/azure-sdk-for-php. While the SDK hosted on CodePlex will continue to work for the foreseeable future, it is strongly recommended that new PHP/Windows Azure application use the SDK hosted on GitHub.

The work done by Maarten Balliauw and other contributors in building the SDK hosted on CodePlex was critical in unifying the PHP developer experience for Windows Azure. The Windows Azure team is grateful to these contributors for their pioneering work and looks forward to their continued support (and yours!) in adding to the new SDK on GitHub.

Thanks,

      
The Windows Azure Team


I’ve been exploring the Windows Azure SDK for PHP command line tools that allow you to create, deploy, and manage new hosted services and web roles. In this post, I’ll walk you through a the basics of using the tools, but first I want to point out a couple of the benefits that come to mind when using these tools:

  • The tools are platform-independent (with the exception of the package tool). The service, certificate, and deployment tools essentially wrap the REST-based Windows Azure management API. (If you look at the files in the SDK, you’ll notice that there are .bat and .sh files for these tools.) So, you can manage your Windows Azure services and deployments from the platform of your choice. (Note that because the management API is REST-based, you can use it via the language of your choice, not just PHP. In fact, tools based on languages other than PHP already exist - See this Ruby example on github.)
  • The tools allow you to programmatically manage your Windows Azure services and deployments.This series of articles, Building Scalable Applications for Windows Azure, demonstrates how to programmatically scale an application using the PHP classes in the SDK. The same type of management is possible with the command line tools.

In the rest of this post, I’ll assume that you have set up the Windows Azure SDK for PHP and that you have a ready to deploy application (see Packaging Applications).

Overview of service, certificate, and deployment tools

The operations exposed by the service, certificate and deployment tools should give you a good idea of what you can do with them. The following tables list the operations that are available. For more information (such as short operation names and parameter information), type the tool name at the command line.

service

Operation

Description

list Lists the hosted services for a specified subscription ID.
getproperties Gets properties (ServiceName, Label, AffinityGroup, Location) for specified hosted service.
getproperty Get a single hosted service property (ServiceName, Label, AffinityGroup, Location)
create Creates a hosted service.
update Updates a hosted service.
delete Deletes a hosted service.

Note: The list operation returns two properties: ServiceName and Url. The value of the Url property is the management API endpoint, not the service URL. If you want the service URL, you can create it from the ServiceName property: https://ServiceName.cloudapp.net.

certificate

Operation

Description

listcertificates Lists properties (Thumbprint, CertificateUrl, ThumbprintAlgorithm) for each certificate associated with the specifed hosted service.
addcertificate Adds a certificate to the specified hosted service.
getcertificate Gets properties (Thumbprint, CertificateUrl, ThumbprintAlgorithm) for a specified certificate.
getcertificateproperty Gets a single certificate property (Thumbprint, CertificateUrl, ThumbprintAlgorithm).
deletecertificate Deletes a certificate.

deployment

Operation

Description

createfromstorage Creates a deployment from a remote package file (.cspkg) and service configuration file (.cscfg).
createfromlocal Creates a deployment from a local package file (.cspkg) and service configuration file (.cscfg).
getproperties Gets properties (Name, DeploymentSlot, Label, Url, Status) for a specified deployment.
getproperty Gets a single property (Name, DeploymentSlot, Label, Url, Status) for a specified deployment.
swap Swaps deployment slots (production to staging and staging to production)
delete Deletes a deployment.
updateconfiguration Updates the configuration for a specified deployment.
updatestatus Updates the status (Running or Suspended) of a deployment.
editinstancenumber Updates the number of instances of a deployment.
rebootinstance Reboots a role instance.
reimageinstance Reimages a role instance.
upgradefromstorage Upgrades a deployment from a remote package file (.cspkg) and service configuration file (.cscfg).
upgradefromlocal Upgrades a deployment from a local package file (.cspkg) and service configuration file (.cscfg).
walkupgradedomains Walks upgrade domains for a specified deployment.

Note: The getproperties operation returns 5 properties: Name, DeploymentSlot, Label, Url, and Status. The value of the Name property is the deployment ID.

Using the service, certificate, and deployment tools

Creating and uploading a service management API certificate

Before you can use the command line management tools, you need to create certificates for both the server (a .cer file)and the client (a .pem file). Both files can be created using OpenSSL, which you can download for Windows and run in a console.

To create the .pem certificate, execute this:

 openssl req -x509 -nodes -days 365 -newkey rsa:1024 -keyout mycert.pem -out mycert.pem

To create the .cer certificate, execute this:

 openssl x509 -inform pem -in mycert.pem -outform der -out mycert.cer

(For a complete description of OpenSSL parameters, see the documentation at https://www.openssl.org/docs/apps/openssl.html.)

Next, you’ll need to upload the .cer certificate to your Windows Azure account. To do this, go to the Windows Azure portal, select Hosted Services, Storage Accounts & CDN, choose Management Certificates, and click Add Certificate.

Now you are ready to use the service, certificate, and deployment tools.

Create a configuration file

The command line tools in the the Windows Azure SDK for PHP support using a configuration file for commonly used parameters. Here’s what I put into my config.ini file:

 -sid="my_subscription_id" 
 -cert="path\to\my\certificate.pem"

This makes it possible to use the –F option on any operation to include my SID and certificate.

List hosted services

The following command will list all hosted services:

 service list -F="C:\config.ini"

This operation will return two properties ServiceName and Url. As mentioned above, the Url property is the management URL, not the service URL. You can create the service URL from the value of the ServiceName property: https://ServiceName.cloudapp.net.

Create a new hosted service

The following command will create a new hosted service:

 service create -F="C:\config.ini" --Name="unique_dns_prefix" --Location="North Central US" --Label="your_service_label"

Note that the value of the Name parameter must be your unique DNS prefix. This is the value that will prefix cloudapp.net to create your service URL (e.g. https://your_dns_prefix.cloudapp.net). When this operation completes successfully, it will return your unique DNS prefix.

Add a certificate

The command below will add a certificate to a hosted service. Note that this isn’t a management certificate, but one that might be used to enable RDP, for example.

 certificate addcertificate -F="C:\config.ini" --ServiceName="dns_prefix" --CertificateLocation="path\to\your\certificate.cer" --CertificatePassword=your_certificate_password

Note that the ServiceName parameter takes the DNS prefix of your service. When this operation completes successfully, it returns the DNS prefix of the targeted service.

Create a staging deployment from a local package

Next, to create a new deployment from a local package (.cspkg file) and service configuration file (.cscfg)…

 deployment createfromlocal -F="C:\config.ini" --Name="dns_prefix" --DeploymentName="deployment_name" --Label="deployment_label" --Staging --PackageLocation="path\to\your.cspkg" --ServiceConfigLocation="path\to\ServiceConfiguration.cscfg" --StorageAccount="your_storage_account_name"

Again, the Name parameter is the DNS prefix of your hosted service. When this operation completes successfully, it returns the request ID of the request. (Look for future posts on using this request ID with the getasynchronousoperation tool in the SDK.)

Get deployment properties

Once a deployment has been created, you can get its properties:

 deployment getproperties -F="C:\config.ini" --Name="dns_prefix" --BySlot=Staging

Note that you get get deployment properties BySlot  (staging or production) or ByName (the name of the deployment).

Move staging deployment to production

To move a deployment from staging to production…

 deployment swap -F="C:\config.ini" --Name="dns_endpoint"

When this operation completes successfully, it returns the request ID of the request.

Add an instance

And lastly, to change the number of instances for a deployment…

 deployment editinstancenumber -F="C:\config.ini" --Name="dns_prefix" --BySlot=production --RoleName="role_name" --NewInstanceNumber=2

 

Wrap Up

Hopefully, those examples are enough to give you the idea. In future posts, I’ll take a look at how to create scripts using these commands to make deployment and management quick and easy. In the meantime, we would love to hear your thoughts on these command line tools. How usable are they for you? What’s missing? Etc.

Thanks.

-Brian

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