Deploy the lustre-aws-fsx helm chart on Oracle Kubernetes Engine (OKE)

Question

Pulumi · Accepted Answer

To deploy the Lustre AWS FSx Helm chart on Oracle Kubernetes Engine (OKE), we can create a program using Pulumi's `kubernetes` and `oci` packages. The steps we will carry out in the program are as follows:

1. **Set up Oracle Cloud Infrastructure (OCI) Provider**: This is the basis for creating and managing resources in Oracle Cloud.
2. **Create a Kubernetes Cluster on OKE**: We will define a Kubernetes cluster resource to be created on OKE.
3. **Deploy the Helm Chart**: We use the `helm.sh/v3.Chart` resource to deploy the Lustre AWS FSx Helm chart into the created Kubernetes cluster.

Here's a Pulumi program written in TypeScript that accomplishes these tasks. It assumes that you have the necessary OCI configuration set up in your environment, such as appropriate credentials and an existing compartment ID to contain the OKE cluster.

### Detailed Pulumi Program

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

// Provide the compartment ID where the OKE cluster should be created
const compartmentId = "ocid1.compartment.oc1..exampleUniqueCompartmentId"; // replace with actual compartment ID

// Define an OCI Kubernetes cluster on OKE
const okeCluster = new oci.containerengine.Cluster("okeCluster", {
  // Define the cluster options such as compartment, OKE version, etc.
  compartmentId: compartmentId,
  kubernetesVersion: "v1.18.10", // specify the version supported by OKE
  name: "my-oke-cluster", // a name for the cluster
  // ... add any other required configurations for OKE clusters
});

// Define a Kubernetes provider to interact with the OKE cluster
// This uses the kubeconfig generated by the OKE cluster resource
const k8sProvider = new k8s.Provider("okeK8sProvider", {
  kubeconfig: okeCluster.kubeconfig,
});

// Deploy the Lustre AWS FSx Helm chart on the OKE cluster using Helm resource
const fsxHelmChart = new k8s.helm.v3.Chart("fsxLustreChart", {
  chart: "lustre-aws-fsx",
  // Specify the Helm repository here if required
  // repositoryOpts: {
  //   repo: 'https://my-helm-repo/',
  // },
  namespace: "default", // specify the namespace where to deploy
  // Specify the values for the Helm chart here, for example:
  /*
  values: {
    // ...chart specific values
  },
  */
}, { provider: k8sProvider });

// Export the cluster name and kubeconfig to access the cluster
export const clusterName = okeCluster.name;
export const kubeconfig = okeCluster.kubeconfig;

```

### Explanation

In the code above:

- We start by creating an OKE cluster using the `oci.containerengine.Cluster` resource. We define the name of the cluster and specify the OKE version and the compartment ID.
- Then we create a Pulumi Kubernetes provider that uses the kubeconfig from the previously created OKE cluster to communicate with our Kubernetes cluster.
- The Lustre AWS FSx Helm chart is deployed to the default namespace using the `k8s.helm.v3.Chart` resource. At this point, you would need to specify the version of the chart and any values you want to override in the `values` object.
- Finally, we export the cluster name and kubeconfig, which can be used to interact with the Kubernetes cluster via `kubectl` or any Kubernetes tooling.

Please ensure that you replace placeholder values like `ocid1.compartment.oc1..exampleUniqueCompartmentId` with actual values that you have for your OCI environment. Also, you may need to specify more configurations for your cluster and Helm chart as per your requirements. The Helm chart name is assumed to be `lustre-aws-fsx`, make sure you have the correct chart name and repository if it's hosted somewhere other than the official Helm repository.

Before running this program, you need to set up Pulumi with OCI and have Pulumi CLI installed. After writing this code in a file named `index.ts`, you can run `pulumi up` to start the deployment process. This command will create all the defined resources in Oracle Cloud and deploy the Helm chart to the Kubernetes cluster.