Migrating the Registered Microservice Engine Using ServiceStage Without Code Modification

Context

This section describes how to migrate the microservice application components that are developed using the Java chassis microservice framework and registered with the professional ServiceComb engine to the exclusive ServiceComb engine without any code modification.

Migrating the registered microservice engine will interrupt services. Evaluate the migration and select a proper time window before the migration.

Prerequisites

You have created an exclusive ServiceComb engine with security authentication disabled. For details, see Creating a Microservice Engine. The VPC and subnet where the engine is located are the same as those in the environment selected during microservice application component deployment.

Procedure

1. Log in to ServiceStage.
2. Delete the deployed microservice application component instances.
   1. Choose Application Management.
   2. Click the application where the microservice application is located. The Overview page is displayed.
   3. In the Component List area, select the components to be deleted and click Bulk Delete.
   4. In the displayed dialog box, click OK.

3. Modify the environment for deploying microservice application components.
   1. Click in the upper left corner to return to the Application Management page.
   2. Choose Environment Management.
   3. Click the environment where the microservice application is deployed to go to the Overview page.
   4. Choose ServiceComb Engines under Middleware.
   5. Select Cloud Service Engine and click Remove.
   6. Click Manage Resource.
   7. Select the created exclusive ServiceComb engine and click OK.

4. Redeploy the microservice application component. For details, see Creating a Component Based on a Container Using UI Configurations.