Deploy the cubefs helm chart on Oracle Kubernetes Engine (OKE)

Question

Pulumi · Accepted Answer

To deploy the CubeFS Helm chart on Oracle Kubernetes Engine (OKE), you'll need to set up a few resources with Pulumi. First, you'll require a Kubernetes cluster on OKE. With your OKE cluster available, you can then use Pulumi's Kubernetes provider to deploy applications using Helm charts.

Below, I will guide you through a program that accomplishes the following steps:

1. Sets up a Kubernetes cluster using Oracle's Container Engine for Kubernetes (`oci.ContainerEngine.Cluster`).
2. Deploys the CubeFS Helm chart onto the OKE cluster using the Helm chart resource (`kubernetes.helm.sh/v3.Chart`).

Here's the full Pulumi program written in TypeScript. It assumes you have already installed Pulumi and configured your Oracle Cloud Infrastructure (OCI) provider.

### Detailed Explanation

First, we import the necessary Pulumi packages to interact with OCI and Kubernetes. We then create a cluster using the `oci.ContainerEngine.Cluster` resource. After the cluster is provisioned, we set up a Kubernetes provider that connects to the OKE cluster using its kubeconfig. Lastly, we deploy the CubeFS Helm chart into the cluster using the `kubernetes.helm.sh/v3.Chart` resource.

Notice that I've added comments within the program indicating where you need to replace placeholder text with actual values, such as your compartment ID, VCN ID, and version numbers for OKE and CubeFS Helm chart.

### Pulumi Program for OKE and CubeFS Helm Chart Deployment

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

// Replace these values with the appropriate IDs from your OCI environment
const compartmentId = "ocid1.compartment.oc1..xxxxx";
const vcnId = "ocid1.vcn.oc1..xxxxx";

// Create an OKE cluster
const cluster = new oci.ContainerEngine.Cluster("cubeFsCluster", {
    compartmentId: compartmentId,
    vcnId: vcnId,
    kubernetesVersion: "v1.21.5", // Replace with the desired Kubernetes version
    options: {
        // Configure options as necessary, such as enabling the Kubernetes Dashboard or Tiller
        addOns: {
            isKubernetesDashboardEnabled: true,
            isTillerEnabled: true,
        },
        // Define any other required options here.
    },
});

// Create a kubeconfig for the OKE cluster
const kubeconfig = pulumi.all([cluster.id, compartmentId]).apply(([clusterId, compartmentId]) => 
    oci.containerengine.getClusterKubeconfig({
        clusterId: clusterId,
        compartmentId: compartmentId,
    }));

// Use the kubeconfig to create a Kubernetes provider that connects to the OKE cluster
const provider = new k8s.Provider("okeProvider", {
    kubeconfig: kubeconfig,
});

// Deploy the CubeFS Helm chart into the OKE cluster
const cubeFsChart = new k8s.helm.v3.Chart("cubeFsHelmChart", {
    chart: "cubefs", // Replace with the correct chart name if different
    version: "1.0.0", // Replace with the desired chart version
    fetchOpts: {
        repo: "https://charts.cubefs.com", // Replace with the correct CubeFS Helm chart repository
    },
}, { provider });

// Export the kubeconfig and cluster details
export const kubeconfigOutput = kubeconfig;
export const clusterName = cluster.name;
```

To run this code, save it in a `.ts` file, navigate to the directory containing the file, and run `pulumi up`. Ensure you have the OCI CLI configured and Pulumi installed on your machine. If the chart name or version is different, or if you need to specify values for the CubeFS Helm chart, please update them in the program above where indicated.

This program will set up the Oracle Kubernetes Engine with the necessary configuration and deploy the CubeFS system using Helm. The setup includes default options which may need adjustments based on your specific use case and environment requirements. For more details on the OCI Pulumi provider resources, refer to the [OCI Container Engine for Kubernetes documentation](https://www.pulumi.com/registry/packages/oci/api-docs/containerengine/cluster/).

Be sure to monitor the CLI output for any errors during execution, and adjust parameters as needed based on the information provided by your OCI environment and CubeFS Helm chart documentation.