Enterprise Distributed Application Service:Deploy Spring Cloud and Dubbo applications in a custom ECS environment

Procedure

Create a server-side application

Each microservices application demo contains a server-side application (service provider) and a client-side application (service consumer). The following example shows how to deploy the server-side application. After you deploy the server-side application, repeat the steps in this section to deploy the client-side application.

1. Log on to the EDAS console.

2. In the left-side navigation pane, choose Application Management > Applications.

3. In the top navigation bar of the Applications page, select the region in which you want to deploy the application. On the page that appears, select the microservices namespace that you want to manage, and click Create Application.

4. In the Basic Information step of the Create Application wizard, configure the basic information of the application and click Next.

   

   1. In the Cluster Type section, click ECS Cluster.

   2. In the Application Runtime Environment section, click Java. In the Java Environment drop-down list, select Open JDK 8.

      The Spring Cloud application demo to be deployed in the ECS cluster is a Java Archive (JAR) package. Therefore, Java is selected as the application runtime environment in this example. If you want to deploy Spring Cloud, Dubbo, or HSF applications in the ECS cluster by using WAR packages, follow the instructions on this page to select an appropriate application runtime environment and version.

   3. Enter an application name in the Application Name field.

   4. (Optional) Enter a description for the application in the Application Description field.

5. In the Configurations step, configure the deployment package and environment parameters for the application, and click Next. The following table describes the configurations used in this example.

   

   Parameter	Operation
   Source of Deployment Package	Select Official Demo.
   Demo Type	Select Spring Cloud Server Application from the drop-down list.
   Instance Source	Select Use Existing Instance.
   Environment	Select Custom Environment.
   Microservices Namespace	Select the microservices namespace where your cluster resides from the drop-down list. Note If the cluster resides in the default microservices namespace, select Default.
   Cluster	If you want to use an existing cluster, select your cluster from the drop-down list. If you want to create a cluster, perform the following operations: Click Create Cluster. In the Create Cluster dialog box, select VPC from the Network Type drop-down list and select the VPC that you created in Step a from the VPC Network drop-down list.
   Instance Source Type	If you want to use an instance that is not imported to a cluster, select Instance not Imported to Any Cluster. If you want to use an instance that is imported to the selected cluster, select Instances in Current Cluster. To import an instance to the cluster, perform the following operations: In the left-side navigation pane of the EDAS console, choose Resource Management > ECS Clusters. Find the cluster to which you want to import the instance and click the cluster name to go to the Cluster Details page. In the ECS Instance section, click the icon and click Add Existing ECS. In the Select Cluster and Existing ECS Instances step of the Add ECS Instance wizard, select Import ECS, select the created ECS instance, and then click Next. In the Ready to Import step, confirm the information about the instance and click Confirm and Import. In the Import step, check whether Directly imported. appears in the Status column. If Directly imported. appears, click Back to Cluster Details. You can view the imported instance in the ECS Instance section.
   Select Instance	Select the created ECS instance.

6. In the Advanced Settings step, configure the Version, Application Health Check, Batch, Batch Mode, and Wait Time Before Next Batch parameters, and click Create Application.

   Note

   The Wait Time Before Next Batch parameter is required only when you select more than one ECS instance. In this example, the application demo is deployed only on one ECS instance. Therefore, you do not need to specify this parameter.

   • By default, the current timestamp is specified as the version number. The format of the version number is yyyymmdd:hhmmss.

   • Batch: Select 1 Batches.

   • Batch Mode: Select Automatic.

7. In the Creation Completed step, confirm Basic Information, Configurations, and Advanced Settings. Then, click Create Application.

   After EDAS starts to deploy the application, the message Application change in progress... is displayed in the upper part of the Basic Information tab. The deployment takes about 2 minutes.

   You can also click View Details next to the message to go to the Change Details page of the application. On this page, you can check the deployment progress and log data.

Create a client-side application

You can refer to the procedure for creating a server-side application to create a client-side application. For more information, see Create a server-side application. When you create a client-side application, you must select Spring Cloud Client Application from the Demo Type drop-down list.

Verify the result

The client-side application contains web services. After both the server-side and client-side applications are deployed, check whether you can log on to the web interface of the client-side application.