1. Deploy the voltha-infra helm chart on Linode Kubernetes Engine


    To deploy a Helm chart on Linode Kubernetes Engine (LKE) using Pulumi, we will need to take the following steps:

    1. Install and Configure Pulumi CLI: This is a one-time setup that involves installing the Pulumi CLI and configuring it with the appropriate cloud provider credentials. In this case, since you are using Linode, you will need to configure the Linode provider by setting up the required tokens and credentials.

    2. Create a new Pulumi TypeScript project: You will initialize a new project using pulumi new typescript.

    3. Define Linode Kubernetes Cluster: You will use the linode.LKECluster resource to define the configuration for your Kubernetes cluster in Linode.

    4. Obtain the Kubeconfig: To interact with your Kubernetes cluster, you'll need the kubeconfig file obtained from Linode once the cluster is provisioned.

    5. Deploy the Helm Chart: Using kubernetes.helm.v3.Chart, which is a Pulumi resource that allows you to deploy Helm charts into your Kubernetes cluster, you will define the deployment of the voltha-infra Helm chart.

    6. Export Outputs: Finally, you can export any outputs that might be useful, such as the external IP address of the service or the cluster kubeconfig.

    Let's begin by creating the Pulumi TypeScript program.

    import * as linode from "@pulumi/linode"; import * as kubernetes from "@pulumi/kubernetes"; import * as pulumi from "@pulumi/pulumi"; // Create a Linode Kubernetes Engine cluster const cluster = new linode.LKECluster("my-cluster", { label: "my-cluster", k8sVersion: "1.18", // Replace with the desired Kubernetes version region: "us-central", // Replace with the desired Linode region pools: [{ count: 3, // Number of nodes type: "g6-standard-2", // Type of Linode instances }], }); // Export the kubeconfig to access the cluster using `kubectl` export const kubeconfig = cluster.kubeconfig; // Create a Kubernetes provider instance using the cluster's kubeconfig const k8sProvider = new kubernetes.Provider("k8s-provider", { kubeconfig: cluster.kubeconfig.apply(JSON.stringify), }); // Deploy the 'voltha-infra' Helm chart const volthaInfraChart = new kubernetes.helm.v3.Chart("voltha-infra", { chart: "voltha-infra", version: "1.0.0", // Specify the chart version you wish to deploy fetchOpts: { repo: "https://charts.example.com/", // Replace with your Helm chart's repository URL }, }, { provider: k8sProvider }); // Export any resources created by the Helm chart that you may want to access export const volthaServiceUrl = volthaInfraChart.getResourceProperty("v1/Service", "voltha-service", "status").apply(status => status.loadBalancer.ingress[0].ip);

    Make sure to replace "https://charts.example.com/" with the actual URL of the Helm chart repository you are using and "voltha-infra" with the actual name of the chart in that repository. Also, customize the Kubernetes version, region, and instance type per your requirements.

    In this program:

    • The linode.LKECluster resource defines the Kubernetes cluster configuration on Linode.
    • The kubeconfig is exported to interact with the cluster using kubectl from your local machine.
    • The kubernetes.Provider resource sets up a Kubernetes provider using the kubeconfig from the newly created LKE cluster.
    • The kubernetes.helm.v3.Chart resource deploys the voltha-infra Helm chart on the LKE cluster using the specified Helm chart repository and version.

    Once this program is ready, you can deploy your infrastructure by running pulumi up in the terminal within the directory containing this program.

    Please note that provisioning a Kubernetes cluster and deploying resources to it will incur costs, as specified by Linode's pricing. Always review the pricing information before provisioning resources.

    For further reading, you can look into the Pulumi documentation to understand the core concepts behind infrastructure as code with Pulumi, and the Kubernetes documentation for more details on managing Kubernetes resources.