Using kubernetes ceph.rook.io with minio.min.io

Question

Pulumi · Accepted Answer

In order to use `ceph.rook.io` alongside `minio.min.io` on Kubernetes with Pulumi, you would typically define a Kubernetes cluster and then deploy Rook Ceph and MinIO as applications within that cluster. Rook is an open-source cloud-native storage orchestrator for Kubernetes, and MinIO is a high performance, Kubernetes-native object store.

To help you understand how to achieve this with Pulumi, I'll walk you through a multi-step process. First, we'll need to create a Kubernetes cluster. Then, we'll deploy Rook Ceph into the cluster, which provides distributed storage. Finally, we'll set up MinIO, which can be configured to use the storage provided by Rook Ceph.

Here's a Pulumi program written in TypeScript demonstrating these steps:

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

// Step 1: Provision a Kubernetes Cluster
// For demonstration, we will use a simple Kubernetes cluster.
// In a production scenario, you would provision a real cluster on a cloud provider.
const cluster = new k8s.core.v1.Namespace("rook-ceph-cluster", {});

// Step 2: Deploy Rook Operator
// Rook operator is a Kubernetes operator that will manage Ceph on Kubernetes.
// Reference: https://rook.io/docs/rook/v1.7/ceph-quickstart.html
const rookOperator = new k8s.yaml.ConfigFile("rook-operator", {
    file: "https://raw.githubusercontent.com/rook/rook/release-1.7/deploy/examples/operator.yaml",
});

// Step 3: Create a Rook Ceph Cluster
// This manifest defines the desired state of the Ceph cluster
const rookCluster = new k8s.yaml.ConfigFile("rook-ceph-cluster", {
    file: "https://raw.githubusercontent.com/rook/rook/release-1.7/deploy/examples/cluster.yaml",
    dependsOn: [rookOperator], // Ensure that Rook Operator is created first
});

// Step 4: Deploy MinIO Operator
// MinIO Operator simplifies the deployment and management of MinIO on Kubernetes.
// Reference: https://docs.min.io/minio/k8s/overview.html
const minioOperator = new k8s.yaml.ConfigFile("minio-operator", {
    file: "https://raw.githubusercontent.com/minio/operator/master/minio-operator.yaml",
});

// Step 5: Setup MinIO Tenant
// The MinIO Tenant will be the actual instance that applications can utilize for object storage.
const minioTenant = new k8s.yaml.ConfigFile("minio-tenant", {
    file: "https://raw.githubusercontent.com/minio/operator/master/examples/tenant.yaml",
    dependsOn: [minioOperator], // Ensure that MinIO Operator is created first
});

// Export the necessary endpoints for accessing MinIO
export const minioEndpoint = "http://minio-service-url"; // Placeholder for MinIO service endpoint
```

In the above Pulumi program:

1. We import the `@pulumi/kubernetes` package, which contains the necessary components to interact with Kubernetes clusters.

2. A namespace is provisioned for the Rook Ceph cluster to organize the resources.
   
3. The Rook operator is deployed from the official Rook GitHub repository. This will manage the Rook Ceph cluster resources.

4. The Ceph cluster definition is applied to the Kubernetes cluster to provision a Ceph cluster.

5. Similarly, we deploy the MinIO Operator followed by setting up a MinIO Tenant. The tenant is the instance that will provide object storage backed by the Rook Ceph distributed storage system.

6. We export a placeholder endpoint for the MinIO service. After deploying, you would replace the placeholder with the actual service endpoint to access MinIO.

Please note that I have provided example URLs from Rook and MinIO's official documentation. You might need to update these URLs to match the versions that you want to deploy.

This Pulumi program illustrates the essential steps to set up Rook Ceph and MinIO on Kubernetes, but to deploy this to an actual environment, a Kubernetes cluster must be provisioned on a cloud provider (AWS, GCP, Azure, etc.) or on-premises. Additionally, you would need to customize the Ceph and MinIO manifests according to your specific requirements on storage class, access policies, and other configurations.