Deploy the mongo-gui helm chart on Kubernetes

Question

Pulumi · Accepted Answer

Deploying a Helm chart on Kubernetes with Pulumi involves several steps. We'll use Pulumi's Kubernetes provider in TypeScript to accomplish this. Here is a high-level overview of the steps:

1. First, we need to create a Helm Chart resource using Pulumi's Kubernetes provider. This resource will define the Helm chart we want to deploy, along with any custom values needed for the deployment.

2. We must specify the chart name and version, and if the chart is not from the default Helm repo, we need to provide the URL to the custom repository as well.

3. We can also specify any values that should be overridden in the Helm chart's default values. This is done using the `values` property.

Below is a complete Pulumi program written in TypeScript that deploys the `mongo-gui` Helm chart onto a Kubernetes cluster.

Make sure you have Pulumi and Kubernetes configured before running this program, and you are logged into a Kubernetes cluster where you have permissions to deploy resources.

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

// Name of the Helm chart
const chartName = "mongo-gui";

// This hypothetical Helm chart version
const chartVersion = "1.0.0";

// If using a Helm repository other than the default Helm repository,
// specify the repository URL here. For this example, we are using a
// placeholder URL.
const chartRepoUrl = "https://charts.example.com/";

// Values to override the default chart values.
// Replace these with actual values for the mongo-gui Helm chart.
const customValues = {
    // For example, you might want to define a custom service type,
    // replica count, or persistent volume configurations. Refer
    // to the chart's values for precise configuration options.
    service: {
        type: "LoadBalancer",
    },
    replicaCount: 2,
    // ... add other custom values here
};

// Create a Helm chart resource using the above-defined variables.
// The precise configuration options will vary depending on the Helm chart.
const mongoGuiChart = new k8s.helm.v3.Chart(chartName, {
    chart: chartName,
    version: chartVersion,
    fetchOpts: { repo: chartRepoUrl },
    values: customValues,
});

// To later access this Helm release, we can export the name of the release,
// or any other outputs.
export const helmReleaseName = mongoGuiChart.urn;
```

This program defines a Helm chart in TypeScript using Pulumi's Kubernetes API. Custom values are provided to override the defaults set by the chart maintainers. The `fetchOpts` property is where you'd set the repository URL for the chart if it's not hosted in the default Helm repository.

When you run this program with Pulumi, Pulumi will interact with your configured Kubernetes cluster and deploy the Helm chart according to the parameters provided in the code.

Please replace the `customValues` and `chartRepoUrl` with actual information on the `mongo-gui` chart you are looking to deploy. If `mongo-gui` is a placeholder for a real chart, ensure you have the correct URL and configuration values for the deployment.