1. Alibaba Cloud ALB for Multi-Tenant AI Service Platforms


    To create an Alibaba Cloud Application Load Balancer (ALB) suitable for a multi-tenant AI service platform with Pulumi, you'd typically perform the following steps:

    1. Create a VPC and VSwitch: Your AI services will need a virtual private cloud (VPC) for network isolation and a VSwitch as a subnet within the VPC where your application servers will reside.

    2. Set up an ALB:

      • Initialize a new load balancer instance within the VPC.
      • Configure listener(s) for the load balancer to handle incoming traffic.
    3. Define Security Groups: These will control inbound and outbound traffic to the servers that are placed behind the load balancer.

    4. Deploy Application Servers: Create an ECS (Elastic Compute Service) instance, or a cluster of instances, and deploy your AI applications on them.

    5. Register Backends with the ALB: Assign the application servers to a server group that the load balancer will forward traffic to.

    6. Configure Health Checks: Define how the ALB should check the health of the application servers to ensure they can handle requests.

    7. Set up DNS (optional): If a domain name is used, configure Alibaba Cloud DNS to route domain traffic to the load balancer.

    Below is a Pulumi program written in Python that sets up a basic ALB on Alibaba Cloud for a multi-tenant AI service platform. The example assumes you have pre-configured your Alibaba Cloud provider using Pulumi. This means you have already set up access to Alibaba Cloud with the necessary credentials and the Pulumi CLI installed in your environment.

    import pulumi import pulumi_alicloud as alicloud # Create a new VPC for the AI service platform ai_vpc = alicloud.vpc.Vpc("aiVpc", cidr_block="", description="VPC for multi-tenant AI service platform") # Create a new VSwitch within the VPC ai_vswitch = alicloud.vpc.VSwitch("aiVSwitch", vpc_id=ai_vpc.id, cidr_block="", zone_id="cn-hangzhou-g") # Replace with the appropriate zone for your services # Create a new Application Load Balancer ai_load_balancer = alicloud.alb.LoadBalancer("aiLoadBalancer", vpc_id=ai_vpc.id, load_balancer_edition="Standard", # Choose the appropriate edition based on your needs load_balancer_business="general", address_type="Internet", zone_mappings=[{ "zoneId": "cn-hangzhou-g", "vSwitchId": ai_vswitch.id }]) # Configure an ALB listener for HTTP port 80 http_listener = alicloud.alb.Listener("httpListener", load_balancer_id=ai_load_balancer.id, listener_port=80, listener_protocol="HTTP", default_actions=[{ "type": "ForwardGroup", "forwardGroupConfig": { "serverGroupTuples": [] # Server groups will be attached later } }]) # Create a security group to allow HTTP access security_group = alicloud.ecs.SecurityGroup("sg", description="Allow HTTP", vpc_id=ai_vpc.id) security_group_rule = alicloud.ecs.SecurityGroupRule("sgRule", type="ingress", ip_protocol="tcp", nic_type="intranet", policy="accept", port_range="80/80", priority=1, security_group_id=security_group.id, cidr_ip="") # (Example ends here) After this point, you will provision ECS instances, deploy your services, # attach them to server groups, and associate the server groups with the ALB. # Export the ALB address so it can be easily accessed pulumi.export('ai_load_balancer_address', ai_load_balancer.address)

    In this Pulumi program:

    • We create an Alibaba Cloud VPC (Vpc) and a VSwitch (VSwitch) within the VPC. These resources provide the network infrastructure.
    • We initialize an Application Load Balancer (LoadBalancer) and a listener (Listener) that handles HTTP traffic on port 80.
    • We set up a security group with a rule (SecurityGroup and SecurityGroupRule) that allows inbound HTTP traffic for your application servers.
    • Throughout the code, we use pulumi's pulumi.export statement to export the load balancer's address.

    Note that certain resources like ECS instances and server groups are not defined since they are specific to the applications you'll be running on your AI service platform. Also, remember to replace cn-hangzhou-g with your actual Alibaba Cloud zone, and adjust the CIDR blocks according to your network design. After this basic setup, you'll add more configurations according to your specific multi-tenant architecture, such as domain names, SSL certificates, detailed routing rules, and more sophisticated health checks.

    Using this program, you provide a robust foundation for your multi-tenant AI service platform on Alibaba Cloud.