1. Scalable ML Model Serving with EKS and Kubernetes


    To serve a machine learning (ML) model at scale using Amazon Elastic Kubernetes Service (EKS) and Kubernetes, you'll need to perform several steps, which I'll guide you through:

    1. Provision an EKS Cluster: This will be your Kubernetes control plane managed by AWS.
    2. Add Node Groups to the Cluster: These are the worker nodes that will run your Kubernetes workload.
    3. Deploy Your ML Model: Package your ML model into a Docker container and create a Kubernetes deployment to serve the model.

    Let's break down each step:

    Provision an EKS Cluster

    To begin with, you'll need to provision an EKS Cluster which acts as the control plane for your Kubernetes environment on AWS. We'll use the aws.eks.Cluster resource from the pulumi_aws SDK for this purpose. This will automatically handle the creation of various components, such as the EKS endpoint and security groups.

    Add Node Groups

    EKS nodes are provisioned as part of NodeGroups, which are groups of EC2 instances that will register with the EKS cluster and run the Kubernetes workload. We'll use the aws.eks.NodeGroup resource to create node groups which are tied to our previously created EKS cluster.

    Deploy Your ML Model

    Once your cluster and nodes are set up, you'll need to write Kubernetes manifests for deploying your ML model. Typically, you would create a Deployment to run your containerized application and a Service to expose it. However, we'll not delve into Kubernetes YAML manifests here because it's a broad topic and beyond the scope of Pulumi.

    Here's a simple Pulumi program that will create a scalable EKS cluster ready to serve your machine learning model:

    import pulumi import pulumi_aws as aws import pulumi_eks as eks # Provision an EKS Cluster. # For details, see: https://www.pulumi.com/docs/reference/pkg/aws/eks/cluster/ eks_cluster = eks.Cluster('eksCluster', role_arn=<Your_EKS_Role_ARN>, vpc_config=eks.ClusterVpcConfigArgs( public_access_cidrs=[''], # Provide your VPC ID and Subnet IDs where the EKS cluster and nodes will reside vpc_id=<Your_VPC_ID>, subnet_ids=<List_of_Subnet_IDs>, ) ) # Provision node groups for the EKS Cluster. # For details, see: https://www.pulumi.com/docs/reference/pkg/aws/eks/nodegroup/ node_group = eks.NodeGroup('eksNodeGroup', cluster_name=eks_cluster.name, node_role_arn=<Your_Node_Role_ARN>, subnet_ids=<List_of_Subnet_IDs>, # Subnets should be the same as the cluster or in the same VPC. scaling_config=aws.eks.NodeGroupScalingConfigArgs( desired_size=2, max_size=5, min_size=1, ), labels={"workload": "ml-serving"}, ) # Export the cluster's kubeconfig. pulumi.export('kubeconfig', eks_cluster.kubeconfig)

    Please replace <Your_EKS_Role_ARN>, <Your_VPC_ID>, <List_of_Subnet_IDs>, and <Your_Node_Role_ARN> with the actual values for your AWS account and setup.

    This code sets up the infrastructure for running ML models at scale. To serve the actual model, you would typically:

    1. Containerize your ML model with tools like Docker, pushing the image to a container registry like Amazon ECR.
    2. Write Kubernetes manifests for the deployment and service (or use higher-level abstractions, such as Helm charts).
    3. Use pulumi_kubernetes.kubernetes.core.v1.Pod or similar resources to define the actual ML workload in terms of Kubernetes resources.

    Remember that the code above assumes you have the necessary IAM roles for your EKS cluster and node group, VPC, and subnets configured in your AWS account. Refer to AWS Documentation for the exact policies and roles you need.

    Finally, managing a scalable ML serving infrastructure involves considerations like load balancing, autoscaling, monitoring, and more. It might require integrating services like AWS Autoscaling, CloudWatch, and possibly others, which Pulumi can certainly orchestrate but is too extensive to cover here.