1. Deploy the ibm-nodejs-express helm chart on Linode Kubernetes Engine


    To deploy the ibm-nodejs-express Helm chart on Linode Kubernetes Engine using Pulumi, you will need to set up Pulumi to manage resources in Linode and utilize the Pulumi Kubernetes provider to deploy Helm charts.

    First, ensure you have the Linode CLI installed and configured on your local machine to interact with the Linode Kubernetes Engine (LKE). Pulumi will use your Linode credentials to create and manage resources.

    Next, we will go through the following steps in the code provided:

    1. Set up the Pulumi Kubernetes provider to interact with your LKE cluster.
    2. Use the kubernetes.helm.v3.Chart resource to deploy the ibm-nodejs-express Helm chart to your cluster.

    Here's a Pulumi program in TypeScript that accomplishes your goal:

    import * as pulumi from '@pulumi/pulumi'; import * as kubernetes from '@pulumi/kubernetes'; // Step 1: Set up the Kubernetes provider to interact with your LKE cluster. // We assume that you have already configured your Linode access token // and have the kubeconfig file for your LKE cluster ready. // Kubernetes provider reads the kubeconfig file to connect to the LKE cluster const k8sProvider = new kubernetes.Provider('lkeProvider', { kubeconfig: '<your-kubeconfig-file-contents>', }); // Step 2: Deploy the `ibm-nodejs-express` Helm chart to your LKE cluster. // You will have to specify the correct repository where the chart is located // and any other configurations specific to the chart. const nodeJsExpressChart = new kubernetes.helm.v3.Chart('ibmNodeJsExpressChart', { repo: 'ibm-charts', // Replace with Helm chart repository name if different chart: 'ibm-nodejs-express', // You can configure the chart values by providing a 'values' object // For example, to set a service type to LoadBalancer: // values: { service: { type: 'LoadBalancer' } }, }, { provider: k8sProvider }); // Exports any endpoints or other resources to access your application // For example, if your chart creates a LoadBalancer service, you would export its IP or hostname export const applicationUrl = nodeJsExpressChart.getResourceProperty('v1/Service', 'ibm-nodejs-express-service', 'status').apply(status => status.loadBalancer.ingress[0].ip);

    Replace <your-kubeconfig-file-contents> with the actual content of your kubeconfig for the LKE cluster. This kubeconfig is used by Pulumi to authenticate and interact with your Kubernetes cluster.

    Notice that we also assume that the Helm chart named ibm-nodejs-express exists in a repository named ibm-charts. Replace with the actual repository if it's hosted elsewhere.

    The applicationUrl export at the end is an example of how you could export the URL of the application if the Helm chart creates a LoadBalancer-type service. This is likely not exactly correct for ibm-nodejs-express, but should give you an idea of what you'd do.

    Note: When working with real infrastructure, the values you want to customize, such as image versions, resource constraints, or environment variables, would be specified in the values object passed to the Chart resource.

    Before running this Pulumi program, ensure you have installed the Pulumi CLI and logged in to the Pulumi service where your state will be stored. Typically, you run this program by executing pulumi up in the same directory as the Pulumi program, which will perform the deployment.

    By running the program, you are instructing Pulumi to make the necessary calls to Linode's APIs to create or update resources following the specifications you provided. Once the deployment is complete, Pulumi will output the exported values, such as the application URL, if applicable.