1. Deploy the presto-loadbalancer helm chart on Opensshift


    To deploy the presto-loadbalancer Helm chart on an OpenShift cluster using Pulumi, you first need to ensure that you have an OpenShift cluster running and accessible. Pulumi communicates with your cluster using the Kubernetes API, which means you must have kubectl configured correctly to access your OpenShift cluster.

    We'll use the kubernetes.helm.v3.Chart resource to deploy the Helm chart. Helm charts are packages of pre-configured Kubernetes resources. The Chart resource manages installing and updating Helm charts in your cluster.

    For the presto-loadbalancer Helm chart, you typically need to know the following:

    • The name of the chart (e.g., presto-loadbalancer).
    • The repository URL where the chart is hosted (if it's a custom or community chart).
    • Any custom values you want to override in the chart's values.yaml.

    Below is a Pulumi program that accomplishes this:

    import * as k8s from '@pulumi/kubernetes'; // Replace the following variables with the appropriate values for your setup. const chartName = "presto-loadbalancer"; // The name of the helm chart const chartVersion = "x.y.z"; // Replace with the chart version you want to deploy. const helmRepo = "https://charts.example.com/"; // Replace with the URL of the helm repository. const namespace = "default"; // The target namespace for the Helm chart deployment. // Chart resource arguments. const prestoChartArgs: k8s.helm.v3.ChartArgs = { chart: chartName, version: chartVersion, namespace: namespace, fetchOpts: { repo: helmRepo, }, // Specify custom values by assigning an object to 'values' // For example: // values: { // service: { // type: "LoadBalancer", // }, // presto: { // configuration: { // ... // Additional Presto configurations if needed. // }, // }, //}, }; // Create a Helm chart instance. const prestoLoadBalancer = new k8s.helm.v3.Chart("presto-loadbalancer-chart", prestoChartArgs); // Export the base URL for the load balancer (this will be empty until the load balancer is actually deployed and assigned an IP) export const baseUrl = prestoLoadBalancer.getResourceProperty("v1/Service", `${namespace}-presto-loadbalancer`, "status").apply(status => status.loadBalancer.ingress[0].ip || "");

    This program initializes a new Helm chart resource for presto-loadbalancer. It specifies the chart name, version, namespace, and the Helm repository URL. It also sets up the deployment to create resources like a Kubernetes Service of type LoadBalancer that will route external traffic to Presto instances.

    The getResourceProperty method is used at the end of the program to extract the IP address that will be assigned to the Presto load balancer service after it's deployed. This value is exported so you can easily retrieve it after deployment.

    It is important to replace the placeholder values with actual information from your specific Presto Helm chart and OpenShift environment. Also, customize the values field to apply any specific Helm values you need for your Presto configuration.

    Please note that the ability to deploy and manage resources on OpenShift with Pulumi requires appropriate permissions. Make sure the Kubernetes context is correctly configured for your OpenShift cluster when you run this Pulumi program.

    For more information about using Pulumi with Kubernetes Helm charts, refer to the Pulumi documentation: