Serverless App Engine:Deploy a microservices application by using a JAR package in the SAE console

Procedure

Deploy the microservices application for the provider

Perform the following steps to deploy the sample microservices application for the provider in SAE.

1. Log on to the SAE console.

2. In the left-side navigation pane, click Applications. In the top navigation bar, select a region. Then, click Create Application.

3. In the Basic Information step, configure the parameters and click Next: Application Deployment Configurations.

   Parameter	Description
   Application Name	Enter a custom application name.
   VPC	Select a configuration method for the VPC. Valid values: Custom Configuration: If you select this option, you must manually specify the namespace, VPC, vSwitch, and security group for the application that you want to create. Automatic Configuration: If you select this option, SAE automatically specifies the namespace, VPC, vSwitch, and security group for the application.
   Namespace	This parameter is required if you set the VPC parameter to Custom Configuration. Select an existing namespace from the drop-down list. Namespaces and VPCs are in one-to-one mapping relationships. For information about how to modify a VPC, see Create and manage a VPC.
   vSwitch	This parameter is required if you set the VPC parameter to Custom Configuration. Click Select vSwitch. In the Select vSwitch dialog box, select the required vSwitches. You must specify at least one vSwitch. We recommend that you specify no more than three vSwitches. Each vSwitch must match at least one application instance.
   Security Group	This parameter is required if you set the VPC parameter to Custom Configuration. Select a security group from the drop-down list. If you have not created a security group in your VPC, click Create Security Group to create a security group as prompted. For more information, see Create a security group.
   Application Instances	Select the number of instances that you want to create.
   VCPU	Select a CPU specification for the instances that you want to create.
   Memory	Select a memory specification for the instances that you want to create.
   Application Description	Enter a description for the application.

4. In the Deployment Configurations step, configure the parameters.

   1. Configure the parameters that are used to deploy an application.

      Parameter	Description
      Technology Stack Programming Language	Select Java.
      Application Deployment Method	Select Deployment with JAR Packages.
      Application Runtime Environment	Standard Java Application Runtime Environment: This option is suitable for Spring Boot or Dubbo applications. EDAS-Container-XXX: This option is suitable for high-speed service framework (HSF) applications. In this example, a Dubbo application is used. Select Standard Java Application Runtime Environment.
      Java Environment	Dragonwell X (recommended): supports OpenJDK. If you select this option, the startup and runtime of the application are accelerated and garbage collection (GC) efficiency is improved. For more information, see Configure a startup command. Open JDK X: This environment is based on the CentOS operating system and the size of the base image is large. openjdk-XXXXX-jdk-alpine3.9: This environment is based on the Alpine operating system and the size of the base image is small. Note Compared with the CentOS operating system, the Java environment that is based on the Alpine operating system supports fewer tools or commands. If you select openjdk-XXXXX-jdk-alpine3.9, some commands in the webshell may fail to be run. Select an environment based on your business scenario.
      File Upload Method	Select Upload JAR Package or JAR Package Path. Upload JAR Package: Click Select File and select the JAR package that you want to use. JAR Package Path: Enter the directory in which the JAR package is stored. In this example, the following directory of the JAR package is used: https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20241022/lgfgve/spring-boot-provider-1.0-SNAPSHOT.jar Note The name of the package that is used to deploy an application can contain only letters, digits, hyphens (-), and underscores (_).
      Version	The version number of the application. Enter a version number or click Use Timestamp as Version Number.
      Time Zone Settings	Select the time zone of the application. Example: UTC+8.

   2. Optional:Configure the advanced settings based on your business requirements.

      Advanced setting	References
      Startup Command Settings	Configure a startup command
      Java Tomcat Settings	Configure Java Tomcat parameters Note You can configure Tomcat settings only if the Application Deployment Method parameter is set to Deployment with WAR Packages.
      Environment Variable Settings	Configure environment variables
      Service Registration and Discovery	Configure application access based on Kubernetes Service names Use the SAE built-in Nacos registry
      Hosts Binding Settings	Configure hosts binding
      Application Health Check	Configure application health checks
      Application Outbound/Inbound Internet Access	Bind an EIP to a NAT gateway Enable Internet access for SAE instances based on EIPs
      Application Lifecycle Management	Configure application lifecycle management
      Log Collection Service	Configure log collection to Simple Log Service Configure log collection to ApsaraMQ for Kafka
      Persistent Storage	Configure NAS storage
      Configuration Management	Inject configurations
      Graceful Start and Shutdown of Microservices	Configure graceful start of microservices Configure graceful shutdown of microservices Note If you set the Application Deployment Method parameter to Deployment with WAR Packages or Deployment with JAR Packages, and set the Application Runtime Environment to EDAS-Container-XXX, this section is not displayed.

5. Click Next: Confirm Specifications.

6. In the Specification Confirmation step, view the details of the application and the fee for the selected specifications. Then, click Confirm.

   The Creation Completed step appears. You can click Application Details to go to the Basic Information page of the application.

Deploy the microservices application for the consumer

https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20241022/fdytfy/spring-boot-consumer-1.0-SNAPSHOT.jar

Check whether the applications are deployed

You can check whether the applications are deployed on the Services page of the provider and consumer.

1. Log on to the SAE console.

2. In the left-side navigation pane, click Applications. In the top navigation bar, select a region. Then, click the name of an application.

3. In the left-side navigation pane, choose Microservices Governance > Services to view the service information.

   • If the Echo microservice is displayed on the Published services tab, the application is deployed for the provider.

   • If the Echo microservice is displayed on the Consumed services tab, the application is deployed for the consumer.

Check whether the microservice can be called

You can configure a Server Load Balancer (SLB) instance for the consumer application to access the Internet, and then send a request from the browser to call the microservice. This way, you can check whether the microservice can be called.

1. Log on to the SAE console.

2. In the left-side navigation pane, click Applications. In the top navigation bar, select the region where the consumer application is deployed, and click the name of the consumer application.

3. In the Application Access Settings section of the Basic Information tab, click Add Internet-facing SLB Instance on the Based on SLB access tab.

4. In the Add Internet-facing SLB Instance dialog box, configure the following parameters and click OK.

   • Select SLB Instance: Select Create.

   • Network Protocol: Select TCP.

   • SLB Port: Enter 80.

   • Container Port: Enter 9091. You must enter the backend port of the application. In this example, the backend port of the consumer application is 9091. For more information, see Bind an SLB instance to an application.

   Important

   You are charged when you use the SLB service. For more information about the billing of SLB, see CLB billing overview.

   After 2 to 3 minutes, the SLB instance is bound to the instance. The IP address and port of the Internet-facing SLB instance are displayed in the Public Endpoint field.

5. In the address bar of a browser, enter the following URL.

   <Endpoint of the Internet-facing SLB instance>:<Port>/sayHello/<Custom string>

   Example: http://*.***. 169.144/sayHello/HelloSAE.

   If the browser returns the following result, the microservice is called:

   Hello, HelloSAE (from Spring Boot)

View application metrics

After an application is deployed, you can view the key performance metrics of the application in the Application Monitoring module.

1. Log on to the SAE console.

2. In the left-side navigation pane, click Applications. In the top navigation bar, select a region. Then, click the name of the application that you want to manage.

3. In the left-side navigation pane, view application monitoring data based on your business requirements.

   • Application Overview: Choose Application Monitoring > Application Overview. The Application Overview page displays the key performance metrics of the application, such as the total number of requests and the average response time.

   • Application Details: Choose Application Monitoring > Application Details. The Application Details page displays more comprehensive application monitoring data, such as the data for JVM monitoring and exception analysis.

   • API Operation Calls: Choose Application Monitoring > API Operation Calls. The API Operation Calls page displays the monitoring data by API operation, such as the call topology, upstream and downstream links.

   • Advanced Monitoring: Choose Application Monitoring > Advanced Monitoring. The Advanced Monitoring page displays higher-performance monitoring and management data, such as global application topology, data of SQL exception analysis, and local call stack.

References