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Azure Cloud Service

Cloud Service is a Platform as a Service that is designed to support web applications that are scalable, reliable, and cheaper to operate. Using cloud service, we can deploy a web application into Azure. We have more control over Virtual Machines. We can install custom software on VMs that uses Azure Cloud Service, and we can access them remotely.

Using cloud service, we don't create virtual machines. Instead, we provide a configuration file that tells Azure how many instances we would like to create, the size of the instance, and the platform will create them for us.

Cloud service is able to detect any failed VMs and applications and ready to start new VMs or application instances when a failure occurs. Cloud service applications shouldn't maintain state in the file system of its own VMs.

Cloud Service Roles

Azure Cloud Service

Web role: It automatically deploys and hosts our app through IIS.

Work role: It does not use IIS and runs our app standalone. If we want to run any continuous bathes, then we can use worker roles, and both the Web role and Worker role will interact with storage to get an application package, etc.

To deploy these Web roles and Worker roles, we will provide configuration and code associated with these web applications.

Cloud Service Components

Three key components constitute a cloud service.

  • ServiceDefenition.csdef file specifies the settings that are used by Azure to configure the cloud service. For example - sites, endpoints, certificates, etc.
  • ServiceConfiguration.cscfg contains the values that will be used to determine the configuration of settings for the cloud service. For example - number of instances, types of instances, ports, etc.
  • Service package.cspkg used to deploy the application as a cloud service. First, it needs to be packaged using the CSPacK command-line tool. CSPacK generates an application package file that can be uploaded into Azure using the portal.

Creating cloud service using the Azure portal

Step 1: Click on create a resource and then type-in Cloud Service.

Azure Cloud Service

Step 2: After that, click on it and then click on create.

Azure Cloud Service

Step 3: Fill-in the DNS name, select the resource group, and location.

Azure Cloud Service

Step 4: Now, Click on create. Your cloud service will be created.

Azure Cloud Service

Step 5: To view the cloud service, click on go-to resources.

Azure Cloud Service

Step 6: Now, go to Visual Studio and create a new cloud service project. Here you can see the basic configuration setting, as shown in the image below.

Azure Cloud Service

Step 7: To publish this cloud service into Azure, right-click on the file name. Then click on publish.

Azure Cloud Service

Step 8: Select your subscription and click next.

Azure Cloud Service

Step 9: Fill all the required details and then click on publish.

Azure Cloud Service

Step 10: Now, go to the Azure portal and click on the Resource group that you have created. You can now see your web role published, as shown in the figure below.

Azure Cloud Service
Next TopicAzure App Services




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