Deploy the meshcentral helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the MeshCentral Helm chart on DigitalOcean Kubernetes Service, we'll go through the following steps:

1. **Create a DigitalOcean Kubernetes Cluster**: We'll define a DigitalOcean Kubernetes Cluster resource, which represents the Kubernetes cluster where your Helm chart will be deployed.

2. **Deploy the MeshCentral Helm chart**: We'll use the `helm.sh/v3.Chart` resource from the Pulumi Kubernetes provider to deploy MeshCentral to our Kubernetes cluster.

Make sure you've installed Pulumi on your local machine and have set up the DigitalOcean provider. You'll need to log in to your DigitalOcean account and generate an access token. Set up your Pulumi installation to use this token, which will allow you to create and manage resources on DigitalOcean.

Now, let's write the Pulumi program in TypeScript which encapsulates the above steps.

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

// Step 1: Create a DigitalOcean Kubernetes Cluster
const cluster = new digitalocean.KubernetesCluster("do-cluster", {
    // Specify the region where the cluster will be created.
    region: digitalocean.Regions.NYC1,

// Define the version of Kubernetes to use.
    // Use a specific version or leave it empty to use DigitalOcean's default.
    version: "1.22.5-do.0",

// Define the size and number of nodes (droplets) for the node pool.
    nodePool: {
        name: "default",
        size: digitalocean.DropletSlugs.DropletS2VCPU2GB,
        nodeCount: 2, // The minimum recommended for a production environment.
    },
});

// Step 2: Deploy the MeshCentral Helm chart
const meshCentralChart = new kubernetes.helm.v3.Chart("meshcentral", {
    // Specify the chart repository and name.
    chart: "meshcentral",
    version: "0.1.0", // Replace with the version you want to deploy.
    fetchOpts: {
        repo: "https://your-helm-chart-repository.com/", // Replace with the MeshCentral Helm chart repository URL.
    },
    // Define values to customize the Helm chart as needed.
    // values: {
    //     key: "value",
    // },
}, { provider: new kubernetes.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigs[0].rawConfig }) });

// Export the kubeconfig and cluster details to make them easy to use.
export const kubeconfig = cluster.kubeConfigs[0].rawConfig;
export const clusterName = cluster.name;
export const clusterEndpoint = cluster.endpoint;
```

Here's what each part of the Pulumi program does:

- We import the necessary libraries: `@pulumi/digitalocean` for managing DigitalOcean resources and `@pulumi/kubernetes` for deploying Kubernetes resources using Helm.

- We define a DigitalOcean Kubernetes cluster resource named `do-cluster`. We specify the region, the version of Kubernetes, and the node pool details, such as the Droplet size and the number of nodes.

- Using `kubernetes.helm.v3.Chart`, we deploy the MeshCentral Helm chart. You need to provide the Helm chart repository URL and the chart version.

- We export the Kubeconfig and a few cluster details which can be used to interact with the cluster once it's up and running.

**Please replace the placeholders** in the `meshCentralChart` resource with the actual MeshCentral Helm chart repository URL and version you wish to use.

Once you have this program ready, you can run `pulumi up` to create the resources in DigitalOcean. After deployment, you will get your kubeconfig on your Pulumi stack's output, which you can use with `kubectl` to interact with your Kubernetes cluster.