Deploy the ctrox-csi-s3 helm chart on Oracle Kubernetes Engine (OKE)

Question

Pulumi · Accepted Answer

To deploy the `ctrox-csi-s3` Helm chart on Oracle Kubernetes Engine (OKE), you will need to define a Pulumi program that sets up the necessary resources on OKE and then deploys the Helm chart.

Before diving into the code, let's outline the steps we'll take:

1. Set up the OKE cluster: We'll use the `oci.ContainerEngine.Cluster` resource to create a new Kubernetes cluster in your OCI (Oracle Cloud Infrastructure) account.
2. Deploy the `ctrox-csi-s3` Helm chart: We'll use the `kubernetes.helm.sh/v3.Chart` resource to deploy the Helm chart to your cluster.

Here is a Pulumi program written in TypeScript to achieve this. Note that before running this program, you must have the OCI provider configured with your Oracle Cloud account credentials.

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

// Step 1: Create an Oracle Kubernetes Engine (OKE) Cluster
const cluster = new oci.ContainerEngine.Cluster("okeCluster", {
    /* Replace the values below with your specific information. You will need to specify your compartment ID
       and the VCN details that the OKE cluster will use. */
    compartmentId: "oci-compartment-id",
    kubernetesVersion: "v1.20.8",
    name: "my-oke-cluster",
    options: {
        /* Include any additional OKE options here, such as addons,
           service load balancer subnet IDs, etc. */
    },
    vcnId: "oci-vcn-id",
});

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

const kubeconfig = pulumi.
    all([cluster.name, cluster.id])
    .apply(([name, id]) => {
        /* Use the OCI command line tool to generate kubeconfig.
           Note: In a real-world scenario, you would want to protect sensitive outputs like kubeconfig. */
        const command = `oci ce cluster create-kubeconfig --cluster-id ${id} --file $HOME/.kube/config --region us-ashburn-1 --token-version 2.0.0`;
        const result = require("child_process").execSync(command).toString();
        return result;
    });

// Step 2: Deploy the ctrox-csi-s3 Helm Chart into the OKE cluster
const provider = new k8s.Provider("okeProvider", {
    kubeconfig: kubeconfig,
});

const s3Chart = new k8s.helm.v3.Chart("ctrox-csi-s3", {
    chart: "csi-s3", // The exact chart name may vary, please ensure to use the correct chart name
    fetchOpts: {
        repo: "https://ctrox.github.io/csi-s3", // The Helm chart repository URL
    },
    // Specify the chart values, such as the S3 endpoint, access keys, region, etc.
    values: {
        s3: {
            accessKey: "S3_ACCESS_KEY",
            secretKey: "S3_SECRET_KEY",
            endpoint: "S3_ENDPOINT",
            // Any additional values required by the Helm chart...
        },
    },
}, { provider: provider });

// Export relevant resources
export const s3ChartName = s3Chart.releaseName;

```

Let's break down the code:

- We define a new OKE cluster using the `oci.ContainerEngine.Cluster` resource. Make sure to replace `"oci-compartment-id"` and `"oci-vcn-id"` with your actual compartment ID and VCN ID in OCI.
- We generate a kubeconfig for accessing the newly created cluster. This step uses a shell command that requires the OCI CLI to be installed on your machine.
- We instantiate a Kubernetes provider with the generated kubeconfig, which will be used by Pulumi to interact with Kubernetes resources.
- We deploy the `ctrox-csi-s3` Helm chart to the cluster using the `k8s.helm.v3.Chart` resource. The `values` argument should be modified to include the configuration specifics to your S3 storage, like the access keys, secret keys, and the S3 endpoint.
- We export the release name of the chart for easy reference.

To run this Pulumi program, save it as `index.ts` in a new directory, and run `pulumi up` within that directory. This will provision the resources according to the configuration you've specified.

Ensure you have all the required permissions and configurations set up in your Oracle Cloud Infrastructure for OKE, Container Engine, and other resources. Also, ensure that you have the necessary OCI policies to create and manage these resources.