Deploy the mcord-subscriber helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To accomplish your goal of deploying a Helm chart to the Digital Ocean Kubernetes Service using Pulumi, you'll go through a series of steps:

1. **Set up a DigitalOcean Kubernetes Cluster**: This is necessary for deploying your Helm chart. We'll use the `digitalocean.KubernetesCluster` resource to create a new cluster.

2. **Deploy a Helm Chart**: With the cluster set up, we'll utilize the `kubernetes.helm.v3.Chart` resource from Pulumi's Kubernetes provider to deploy your `mcord-subscriber` Helm chart onto the cluster.

Below you'll find the Pulumi TypeScript program that accomplishes these steps:

```typescript
import * as digitalocean from '@pulumi/digitalocean';
import * as kubernetes from '@pulumi/kubernetes';
import * as pulumi from '@pulumi/pulumi';

// Step 1: Create a new DigitalOcean Kubernetes cluster
const cluster = new digitalocean.KubernetesCluster("do-cluster", {
    region: digitalocean.Regions.NYC1, // Choose the region that is best for you
    version: "latest", // Use the latest available version for the Kubernetes cluster
    nodePool: {
        name: "default",
        size: digitalocean.DropletSlugs.DropletS2VCPU2GB, // Change to the desired droplet size
        nodeCount: 2, // This is the number of Droplet instances in your cluster
    }
});

// Step 2: Deploy mcord-subscriber Helm chart 
const mcordSubscriberChart = new kubernetes.helm.v3.Chart("mcord-subscriber-chart", {
    // Assuming the mcord-subscriber chart is available in a public Helm repository
    // Replace the `repo` and `chart` fields with the correct repository and chart name
    chart: "mcord-subscriber",
    fetchOpts: { repo: "https://charts.example.com/" },
    // If you have specific values to override, specify the `values` field like below
    // values: { key: value, ... }
}, { provider: new kubernetes.Provider("do-k8s", { kubeconfig: cluster.kubeConfigs[0].rawConfig }) });

// Export the cluster's kubeconfig and the service URL of mcord-subscriber
export const kubeconfig = cluster.kubeConfigs[0].rawConfig;
// Replace 'service' with the actual service name or type created by the Helm chart for mcord-subscriber
// and ensure you are exporting the appropriate data such as endpoint or external IP.
export const mcordSubscriberServiceUrl = mcordSubscriberChart
.getResourceProperty("v1/Service", "mcord-subscriber-service", "status")
.apply(status => status.loadBalancer.ingress[0].ip);
```

**Explanation:**

- We import the necessary Pulumi packages at the top of the file: `digitalocean` for interacting with DigitalOcean resources, `kubernetes` for Kubernetes operations, and `pulumi` as it is core to all Pulumi programs.

- We create an instance of `digitalocean.KubernetesCluster`, which is a representation of a DigitalOcean Kubernetes service. Configure the cluster via the constructor's arguments like region, version, and node pool specifications. For detailed documentation regarding `digitalocean.KubernetesCluster`, refer [here](https://www.pulumi.com/registry/packages/digitalocean/api-docs/kubernetescluster/).

- We set up a Helm chart deployment using `kubernetes.helm.v3.Chart`. When creating this resource, we specify the chart name and repository. Optionally, you can provide an object of values that would be used to override the default chart values. For more information on deploying Helm charts with Pulumi, see [here](https://www.pulumi.com/registry/packages/kubernetes/api-docs/helm/v3/chart/).

- Finally, we export the `kubeconfig` for your cluster so you can interact with it using `kubectl` and other Kubernetes tooling. We also suggest how to export the service endpoint assuming that your Helm chart deploys a service named `mcord-subscriber-service`. For a different deployment or service setup, you may need to adjust how you obtain the service URL.

Please adjust parameters like the Helm chart repository URL, service name, and values according to your actual use case.

To run this program, you will need to have Pulumi installed and configured for TypeScript, as well as have access to your DigitalOcean account through Pulumi. Save this code to a file with a `.ts` extension, run `npm install` to install the dependencies, and then run `pulumi up` to deploy your infrastructure.