1. Deploy the cb-app-slack helm chart on Digital Ocean Kubernetes Service


    To deploy a Helm chart on the Digital Ocean Kubernetes Service using Pulumi, you will typically go through these steps:

    1. Provision a Kubernetes cluster in Digital Ocean.
    2. Install the Helm chart on the cluster.

    I will guide you step by step on how to write a Pulumi program in TypeScript to accomplish this.

    Creating a Kubernetes Cluster

    First, you need to create a Kubernetes cluster in Digital Ocean. To do that, we will use the digitalocean.KubernetesCluster resource, which allows us to define a cluster with various configuration options like the region and node pool details.

    Installing the Helm Chart

    After the cluster is provisioned, you will use Pulumi's Helm package to deploy the Helm chart to the cluster. Specifically, we'll deploy the cb-app-slack chart, which we'll assume is publicly available.

    However, if you're using a private Helm repository or need specific values for your Helm release, you might need to customize your Chart resource further.

    Now, let's translate these steps into code.

    import * as digitalocean from "@pulumi/digitalocean"; import * as kubernetes from "@pulumi/kubernetes"; // Create a Digital Ocean Kubernetes cluster const cluster = new digitalocean.KubernetesCluster("do-cluster", { region: "nyc1", version: "1.21.5-do.0", nodePool: { name: "default", size: "s-1vcpu-2gb", nodeCount: 2, }, }); // Create a Kubernetes provider instance that uses our cluster from above const k8sProvider = new kubernetes.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigs[0].rawConfig, }); // Deploy the cb-app-slack helm chart onto the Digital Ocean cluster const cbAppSlackChart = new kubernetes.helm.v3.Chart("cb-app-slack", { chart: "cb-app-slack", // Assuming "cb-app-slack" chart is available in the default Helm repo. // If the chart is in a custom repository or requires a specific version, // you should provide the 'repo' and 'version' attributes accordingly. // Optionally, you can add 'values' to customize your Helm chart installation. }, { provider: k8sProvider }); // Export the cluster's kubeconfig and the endpoint of the Helm chart service export const kubeconfig = cluster.kubeConfigs[0].rawConfig; export const serviceEndpoint = cbAppSlackChart.resources.apply(resources => { const service = resources["v1/Service::cb-app-slack"]; return service ? service.status.loadBalancer.ingress[0].ip : undefined; });


    • Kubernetes Cluster: We create a Kubernetes cluster using the DigitalOcean.KubernetesCluster class. We specify the region, Kubernetes version, and node pool configuration here. In this example, the cluster has a default node pool with two s-1vcpu-2gb Droplets.

    • Kubernetes Provider: This is a Pulumi concept that allows us to communicate with a Kubernetes cluster. We use the kubeconfig from our newly created Digital Ocean Kubernetes cluster to instantiate the Kubernetes provider. It uses this kubeconfig to talk to the cluster and deploy resources.

    • Helm Chart: The kubernetes.helm.v3.Chart class is used to deploy a Helm chart. The chart name provided is cb-app-slack, which we assume is present in the default Helm repository. If it's in a different repository or a specific version is needed, you can supply additional arguments like repo and version. You can also supply a values object to override default chart values.

    • Exports: At the end of our program, we export the kubeconfig as well as the service endpoint (if available) to connect to the cb-app-slack service. The serviceEndpoint captures the IP address that can be used to access the deployed application, assuming the chart exposes a service with an external IP.

    Remember to install the Pulumi DigitalOcean and Kubernetes SDKs before running this program:

    npm install @pulumi/digitalocean @pulumi/kubernetes

    After you have these packages installed, you can run this Pulumi program using the Pulumi CLI commands pulumi up to deploy the cluster and the app, and pulumi destroy when you want to clean up resources.

    One more thing to note is the assumption here that the cb-app-slack chart is publicly available on a helm repository known to your Kubernetes cluster. If your chart is located elsewhere or requires authentication, you'll need to configure that accordingly in the chart resource.