Deploy the minio-standalone helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy the MinIO standalone Helm chart on a Kubernetes cluster using Pulumi, you'll define a Kubernetes `Chart` resource. The `Chart` resource is a component within Pulumi's Kubernetes provider that allows you to apply Helm charts within your Pulumi program.

Here's how you can use it to deploy MinIO:

1. **Setting Up**: Ensure you have Pulumi installed and configured with access to your Kubernetes cluster. Ensure `kubectl` is also configured to communicate with your cluster.

2. **Creating a New Project**: Create a new Pulumi project using your preferred language. For TypeScript, this usually starts with `pulumi new typescript`.

3. **Writing the Code**: You'll write the Kubernetes `Chart` resource within your `index.ts` file in the Pulumi project.

4. **Deploying**: Deploy your code using the `pulumi up` command. Pulumi will provision the MinIO Helm chart based on the specified Helm release configuration within your code.

Below is a TypeScript program demonstrating how to deploy a MinIO standalone Helm chart on Kubernetes:

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

// Create a Kubernetes namespace for MinIO.
const ns = new k8s.core.v1.Namespace("minio-namespace", { metadata: { name: "minio-ns" } });

// Deploy MinIO using the Helm chart.
const minioChart = new k8s.helm.v3.Chart("minio-standalone", {
    chart: "minio",
    version: "8.0.10", // Specify the version of the MinIO chart you wish to deploy.
    namespace: ns.metadata.name,
    fetchOpts: {
        repo: "https://charts.bitnami.com/bitnami" // The repository URL where the chart is located.
    },
    // Override default values from the chart. For example, set a specific AccessKey and SecretKey (it's recommended to use secrets in a production environment).
    values: {
        accessKey: "minio-access-key",
        secretKey: "minio-secret-key",
        buckets: ["my-bucket"], // Create a bucket named 'my-bucket' on startup.
    }
}, { dependsOn: [ns] });

// Export the endpoint to access MinIO.
export const minioEndpoint = minioChart.getResourceProperty("v1/Service", "minio-standalone-minio", "status").apply(status => {
    const ingress = status.loadBalancer.ingress[0];
    if (ingress.hostname) return `http://${ingress.hostname}:${port}`;
    if (ingress.ip) return `http://${ingress.ip}:${port}`;
    return "MinIO endpoint not available";
});
```

This program does the following:

- Import the necessary Pulumi Kubernetes package.
- Create a Kubernetes namespace specifically for MinIO.
- Deploy the MinIO Helm chart by creating a `Chart` resource with the chart name `minio`, which points to the MinIO chart in Bitnami's Helm repository.
- Specify the Helm chart version to use. It's important to lock in a specific version to ensure that your infrastructure is reproducible.
- Configure the release with custom values, such as an `accessKey`, `secretKey`, and pre-created buckets. These are just placeholders for demonstration and should be replaced with secure values for production use. It's also set to depend on the namespace we created previously to enforce correct ordering.

Finally, it exports the endpoint at which MinIO is accessible. This is useful if you need to access MinIO outside of the Kubernetes cluster.

**Note**: The `export const minioEndpoint` line will dynamically retrieve the ingress information for MinIO service to provide you with a URL endpoint. Depending on your Kubernetes cluster setup, ingress resource might need to be handled slightly differently to get an accessible URL.

Please replace placeholders such as `minio-access-key`, `minio-secret-key`, and the bucket name with your desired configuration, and be sure to use Kubernetes Secrets or Pulumi configuration to manage sensitive information securely in a production environment.

To run this Pulumi program, save it to an `index.ts` file, then execute `pulumi up` in the same directory to create the resources. The deployment will be complete when you see the message "update succeeded" and get the MinIO endpoint in your Pulumi stack's outputs.