Serverless App Engine:Use an image to deploy a Python application in the SAE console

(Optional) Configure image synchronization in the Container Registry console

If the Alibaba Cloud image repository that you want to use does not reside in the same region as your application, you must use the image synchronization feature of Container Registry to synchronize the image repository to the region where the application resides before you deploy the application.

1. Log on to the Container Registry console.
2. In the top navigation bar, select a region.
3. On the Instances page, click Instance of Personal Edition to go to the Instance of Personal Edition page.
4. In the left-side navigation pane, choose Repository > Repositories. On the Repositories page, click the name of the repository that you want to manage.
5. In the left-side navigation pane, click Image Replication. On the Image Replication page, click Create .
6. In the Sync dialog box, configure the following parameters and click Confirm.
   • Tag: the version of the current image.
   • Target: Specify the region, namespace, repository name, and version number of the destination repository in sequence.
   After the image synchronization is completed, the image repository that you selected in the Container Registry console is synchronized to the specified destination repository. Then, you can select the image in the Deployment Configurations step when you deploy an application in the SAE console.

Deploy an application

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 only if the VPC parameter is set to Custom Configuration. Select an existing namespace from the drop-down list. Note 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 only if the VPC parameter is set to Custom Configuration. Click Select vSwitch. In the Select vSwitch dialog box, configure the parameters. 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 only if the VPC parameter is set to Custom Configuration. Select a security group from the drop-down list. Note 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 the CPU specification for the instances that you want to create.
   Memory	Select the memory specification for the instances that you want to create.
   Application Description	Enter the basic information about 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 Python.
      Application Deployment Method	Select Image.
      Configure Image	Select the type of image that you want to use. Images of Current Alibaba Cloud Account: Select an image that is uploaded to Container Registry within your Alibaba Cloud account and the version of the image. Container Registry Personal Edition: Configure the Image Repository Namespace and the Image Repository Name parameters to filter images. Note If the Alibaba Cloud image repository that you want to use does not reside in the same region as your application, you must use the image synchronization feature of Container Registry to synchronize the image repository to the region where your application resides. For more information, see (Optional) Configure image synchronization in the Container Registry console. Container Registry Enterprise Edition: Select a Container Registry Enterprise Edition instance from the drop-down list. Note If you select Container Registry Enterprise Edition, you must first create a Container Registry Enterprise Edition instance in the Container Registry console and associate the instance with a virtual private cloud (VPC) and a vSwitch. For more information, see Create a Container Registry Enterprise Edition instance and Configure access over VPCs. If you do not associate the VPC and vSwitch of an SAE application with a Container Registry instance in the Container Registry console, you cannot use an image in the instance to deploy the application in the SAE console. Demo Image: Select a version of a demo image from the drop-down list. Public Image: Enter the full URL of a public image that can be accessed over the Internet. Make sure that the VPC can be accessed over the Internet. Private Images of Other Alibaba Cloud Account: Configure the Container Registry Edition and Image Type parameters. Then, configure the related parameters.

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

      Advanced setting	Documentation
      Startup Command Settings	Configure a startup command
      Environment Variable Settings	Configure environment variables
      Hosts Binding Settings	Configure host bindings
      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	Configure log collection to Log Service Collect logs to Message Queue for Apache Kafka
      Persistent Storage	Configure NAS storage
      Configuration Management	Inject configurations

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.
7. Verify whether the configurations have taken effect.
   • Method 1:

     In the left-side navigation pane of the Basic Information page, click Change Records. On the Change Records page, view the change details. If Executed is displayed in the Change Status column, the application is deployed and the configurations have taken effect.

   • Method 2:

     On the Basic Information page, click the Instance Deployment Information tab to view the Status of the instances. If Running is displayed in the Status column, the application is deployed and the configurations have taken effect.

References