Deploy the pleroma helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the Pleroma helm chart on the Digital Ocean Kubernetes Service using Pulumi, we need to follow these steps:

1. Set up a Digital Ocean Kubernetes (DOKS) cluster.
2. Install the Helm chart for Pleroma onto the Kubernetes cluster.

We'll use two main resources from Pulumi for these tasks:
- `digitalocean.KubernetesCluster`: To create and manage a Kubernetes cluster on Digital Ocean.
- `kubernetes.helm.v3.Chart`: To deploy a Helm chart onto our Kubernetes cluster.

First, you need to install the necessary Pulumi packages for Digital Ocean and Kubernetes. You can do this by running the following commands:

```bash
pulumi plugin install resource digitalocean v4.22.0
pulumi plugin install resource kubernetes v4.4.0
```

### Step 1: Define the Kubernetes Cluster

We start by defining the Digital Ocean Kubernetes (DOKS) cluster with the required properties such as region, version, and node pool configuration.

### Step 2: Deploy the Helm Chart

Once the cluster is ready, we deploy the Helm chart for Pleroma. In the provided code, we'll assume that the chart is available in a Helm repository that we specify, and Pulumi will handle fetching and deploying the specified chart version.

Here's the TypeScript program that accomplishes these tasks:

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

// Step 1: Create a Digital Ocean Kubernetes Cluster
const cluster = new digitalocean.KubernetesCluster("pleroma-cluster", {
    region: "nyc3",
    version: "latest", // Specify the version of Kubernetes you want to use
    nodePool: {
        name: "default",
        size: "s-2vcpu-2gb", // This is the smallest node size. Change as needed.
        nodeCount: 2, // Number of nodes in the node pool
    },
});

// The kubeconfig output of the cluster will be used to interact with the cluster
export const kubeconfig = cluster.kubeConfigs[0].rawConfig;

// Step 2: Deploy the Pleroma Helm chart onto the Kubernetes cluster
const pleromaChart = new kubernetes.helm.v3.Chart("pleroma", {
    chart: "pleroma",
    version: "x.y.z", // Replace with the specific chart version you require
    fetchOpts: {
        repo: "https://charts.example.com/", // Replace with the URL to the repository where the Pleroma chart is stored
    },
}, { provider: new kubernetes.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigs[0].rawConfig }) });

// Export the Pleroma deployment URL, typically you'd find this in the Helm chart documentation or by inspecting the service after deployment
export const pleromaUrl = pleromaChart.getResourceProperty("v1/Service", "pleroma", "status").apply(status => status.loadBalancer.ingress[0].ip);
```

What this code does:
- It creates a new Digital Ocean Kubernetes cluster in the data center region `nyc3` with the "latest" version of Kubernetes. 
- It specifies the node pool configuration with two nodes of size `s-2vcpu-2gb`.
- It then deploys a Helm chart named "pleroma" using its version and Helm repository URL (you should replace the placeholder values with actual values relevant to the Pleroma chart).
- It creates a Kubernetes provider associated with our cluster to ensure that Helm charts are deployed to it.
- It exports the kubeconfig, which is needed to interact with the cluster, and the IP address of the Pleroma service, which you can use to access your Pleroma instance once deployed.

Make sure to replace placeholders like `x.y.z` and `https://charts.example.com/` with the actual version of Pleroma helm chart and the URL to the Helm repository where the Pleroma chart is stored, respectively. The `export const pleromaUrl` line assumes that Pleroma service is of type LoadBalancer and assigns an external IP which will be used to access the Pleroma instance by users. If the service type or access method is different, you will need to adjust this accordingly.

Remember, before running the program, you must set up Pulumi with the required credentials for Digital Ocean. Typically, this is done by setting up the appropriate environment variables or using the Pulumi configuration system to securely handle your Digital Ocean token.