Deploy the trilium helm chart on Kubernetes

Question

Pulumi · Accepted Answer

Deploying a Helm chart on Kubernetes using Pulumi involves several steps. Before we dive into the code, let's break down what we're going to do:

1. **Initialize a new Pulumi Kubernetes project**: This sets up the project structure and necessary configuration to interact with our Kubernetes cluster.

2. **Use `kubernetes.helm.v3.Chart` resource**: We'll leverage this Pulumi resource which represents a Helm Chart for deploying packages (applications or services) onto a Kubernetes cluster. We will specify the chart name, which in this case is "trilium".

3. **Provide the Chart values**: Helm charts are customizable through values, which we can override as needed. For Trilium, this could include configuration like setting up persistence, ingress, etc., but for simplicity, we'll use default values.

4. **Review and apply the configuration**: With our Pulumi program written, it can be reviewed to ensure that it meets our expectations. If everything looks correct, we execute the program to deploy the Trilium Helm chart to our Kubernetes cluster.

Here's a TypeScript program that accomplishes these steps. Make sure you have Pulumi installed and configured to access your Kubernetes cluster (e.g., via `~/.kube/config`).

```typescript
import * as k8s from "@pulumi/kubernetes";

// Create a Kubernetes Namespace
const ns = new k8s.core.v1.Namespace("trilium-namespace", {
    metadata: {
        // Using a custom name for the namespace rather than a randomly generated one
        name: "trilium"
    }
});

// Deploy Trilium Helm Chart into the Kubernetes cluster
const triliumChart = new k8s.helm.v3.Chart("trilium-chart", {
    // Specifying the namespace created above
    namespace: ns.metadata.name,
    // The name of the chart we want to deploy
    chart: "trilium",
    // The repository where the Helm chart is located (this should be updated with the actual Trilium Helm chart repository)
    fetchOpts: {
        repo: "https://trilium's_helm_chart_repository_url/"
    },
    // Use default values here, customize them if needed for the Trilium Helm chart;
    // It's important to review the chart's values to configure it according to your needs
    values: {},
}, { dependsOn: [ns] }); // Ensuring that the namespace is created before the chart is deployed

// Export the Namespace name and Chart name
export const namespaceName = ns.metadata.name;
export const triliumChartName = triliumChart.metadata.name;
```

In this program, we first create a Kubernetes namespace called "trilium" to isolate our application within the cluster.

We then declare a Helm chart resource named "trilium-chart", specifying that it's a "trilium" chart and provide the repository URL where the chart can be fetched (you'll need to replace 'https://trilium's_helm_chart_repository_url/' with the actual URL of the Trilium Helm chart).

We also export the namespace name and chart name, so we know where the chart is deployed and can check its status.

Before running this program, you need to set up Pulumi with the Kubernetes provider by logging into the Pulumi CLI and selecting your stack. Make sure your kubeconfig is correctly configured to point to your cluster.

After you're sure everything is set up, run the following commands:

```bash
pulumi up
```

Pulumi will show you a preview of the resources that will be created. If everything looks good, proceed with the deployment.

To monitor the deployment, you can use the `kubectl` command, where you can describe the pods, services, and other resources created as part of the Helm chart to ensure everything is running as expected.

```bash
kubectl get all -n trilium
```

This command will list all resources deployed in the "trilium" namespace. If you encounter any issues or have specific Trilium configuration requirements, you should refer to the [Trilium Helm chart's documentation](#) and adjust the `values` section of the chart accordingly. Remember to update the program with specific chart values or configurations required for your use case.