Serverless App Engine:On-premises-to-cloud interconnection with Alibaba Cloud Toolkit (IntelliJ IDEA)

Limitations

Limitations

The interconnection between on-premises and cloud applications feature supports Java applications. The following limitations apply to different Java microservices frameworks:

Step 1: Install Alibaba Cloud Toolkit

1. Start IntelliJ IDEA.

2. Install the plugin.

   • For macOS: From the main menu, choose . In the left-side navigation pane of the Preferences dialog box, click Plugins. Search for Alibaba Cloud Toolkit and click Install.

   • For Windows: From the main menu, choose . In the left-side navigation pane of the Settings dialog box, click Plugins. Search for Alibaba Cloud Toolkit and click Install.

3. After you install the plugin, restart IntelliJ IDEA. The Alibaba Cloud Toolkit icon () appears in the toolbar.

Step 2: Configure Alibaba Cloud Toolkit account

After you install Alibaba Cloud Toolkit, you must configure an account by providing an AccessKey ID and an AccessKey Secret.

1. Start IntelliJ IDEA.

2. From the main menu, choose .

3. In the Settings dialog box, choose .

4. On the Accounts page, enter your AccessKey ID and AccessKey Secret, and then click OK.

   If you use the AccessKey ID and AccessKey Secret of a RAM user, make sure that the RAM user has at least the permissions to deploy applications. For more information, see Grant permissions to a RAM user.

   Note the following about Alibaba Cloud accounts:

   • If you have an Alibaba Cloud account, click Get existing AK/SK on the Accounts page. You are redirected to the Alibaba Cloud sign-in page. After you sign in, you are sent to the Security Information Management page, where you can get your AccessKey ID and AccessKey Secret.

   • If you do not have an Alibaba Cloud account, click Sign up on the Accounts page to register one. After registration, follow the steps described above to get your AccessKey ID and AccessKey Secret.

Step 3: Configure on-premises-to-cloud interconnection

1. From the main menu, choose .

2. In the Settings dialog box, choose .

3. On the Microservice page, select Interconnection Between On-premises and Cloud Applications, configure the parameters, and then click Apply.

   The following table describes the parameters.

   Parameter	Description
   Product	Select Serverless App Engine (SAE).
   Environment for Interconnection Between On-premises and Cloud Applications	Specify the region and namespace where the application is deployed.
   Spring Cloud Service Port	If you use a Spring Cloud application, add the service port of the application in the Spring Cloud Service Port section. You can skip this parameter for other types of applications.
   Jump Server Settings	Jump Server IP: Enter the public IP address of your ECS instance. Account: Enter the username used to establish the interconnection channel. Password: Enter the password used to establish the interconnection channel. Note You can enter the username and password of the ECS instance used for the interconnection channel. Alternatively, enter a new username and password, and click Initialize Account... to initialize the account.
   Initialize Account...	If you enter the root username and password of the ECS instance, the configuration uses the root account. If the operation succeeds, the message The configuration was added successfully appears. If you use a new or non-root account for the connection, you must have root permissions to configure the proxy for this account. In the Add SSH Rule dialog box, enter the root Password and click Add. Important The username and password for the ECS instance are used only to create a network proxy and not for any other purpose. We recommend that you use a new or non-root account for the connection. You can then share this account with other team members who also need to use the interconnection, which helps prevent leaking root credentials.

Step 4: Start the local application for interconnection

Start your local application. If the connection is active, a message appears, confirming that the interconnection between on-premises and cloud applications is enabled.

After the application starts, an etrans process also starts.

@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class ConsumerApplication {
    @LoadBalanced
    @Bean
    public RestTemplate restTemplate() {
        return new RestTemplate();
    }
    public static void main(String[] args) {
        SpringApplication.run(ConsumerApplication.class, args);
    }
}

More information

• If you encounter issues when implementing the interconnection with Alibaba Cloud Toolkit, see Troubleshoot interconnection issues.

• To learn how to quickly deploy applications to SAE by using the IntelliJ IDEA plugin, see Deploy an application by using the Alibaba Cloud Toolkit for IntelliJ IDEA.