Deploy the turborepo-remote-cache helm chart on Oracle Kubernetes Engine (OKE)

Question

Pulumi · Accepted Answer

In order to deploy the `turborepo-remote-cache` Helm chart on Oracle Kubernetes Engine (OKE), you’ll need to take the following steps using Pulumi:

1. **Set up an OKE cluster**: You need an OKE cluster to deploy your Helm chart onto. You’ll create an OKE cluster if you don’t already have one.
2. **Set up a Kubernetes configuration**: To interact with your OKE cluster, Pulumi will need to configure Kubernetes.
3. **Deploy your Helm chart**: Using the Helm release resource, you’ll instruct Pulumi to deploy the `turborepo-remote-cache` chart to your OKE cluster.

Firstly, ensure you have Pulumi installed and the OCI (Oracle Cloud Infrastructure) CLI configured with the necessary credentials. You should also be logged in to your OCI account and have a compartment set up.

Here’s the TypeScript program that will deploy your Helm chart onto OKE:

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

// Replace these variables with the appropriate values for your OCI environment
const compartmentId = "ocid1.compartment.oc1..your_compartment";
const vcnId = "ocid1.vcn.oc1..your_vcn";
const kubernetesVersion = "v1.20.11"; // Use a valid Kubernetes version for OKE

// Set up the OKE cluster configuration
const clusterName = "turborepo-cluster";

// Create an OKE cluster
const cluster = new oci.containerengine.Cluster(clusterName, {
    compartmentId: compartmentId,
    vcnId: vcnId,
    kubernetesVersion: kubernetesVersion,
    options: {
        serviceLbSubnetIds: [], // Specify your load balancer subnet IDs if necessary
    },
    // You can specify additional configurations for your cluster here
});

// Once the cluster is created, get a kubeconfig file which is necessary to communicate with the Kubernetes cluster
const kubeconfig = pulumi.all([cluster.id, cluster.name]).apply(([clusterId, clusterName]) => {
    return oci.containerengine.getClusterKubeconfig({
        clusterId: clusterId,
        name: clusterName,
    });
});

// Create a Kubernetes provider that uses the kubeconfig from the OKE cluster
const k8sProvider = new k8s.Provider("k8sProvider", {
    kubeconfig: kubeconfig.rawConfig,
});

// Deploy the turborepo-remote-cache Helm chart
const turborepoRelease = new k8s.helm.v3.Release("turborepo-remote-cache-release", {
    chart: "turborepo-remote-cache",
    version: "1.0.0", // Specify the chart version you want to deploy
    repositoryOpts: {
        repo: "https://charts.your-repo.com/", // Replace with the correct chart repository URL
    },
    values: {
        // Specify any values to override the chart's default configuration here
    },
}, { provider: k8sProvider });

// Export the cluster name and the public endpoint from which the turborepo-remote-cache can be accessed
export const okeClusterName = cluster.name;
export const turborepoEndpoint = turborepoRelease.status.apply(status => status.firstLoadBalancerIngressIp);
```

Brief Explanation of the Resources Used:

- `oci.containerengine.Cluster`: This resource defines and creates an OKE cluster in Oracle Cloud Infrastructure. The cluster uses a specific Kubernetes version that you need to specify.

- `oci.containerengine.getClusterKubeconfig`: This function retrieves the kubeconfig file of the created OKE cluster which is required to communicate with the Kubernetes cluster outside the Oracle Cloud environment.

- `@pulumi/kubernetes.Provider`: This is the Pulumi provider for Kubernetes. It uses the kubeconfig file to establish a connection to your newly created OKE cluster.

- `@pulumi/kubernetes.helm.v3.Release`: This resource represents a Helm chart release. It is used to deploy the `turborepo-remote-cache` helm chart onto the Kubernetes cluster managed by OKE.

Make sure to replace placeholder values such as `ocid1.compartment.oc1..your_compartment`, `ocid1.vcn.oc1..your_vcn`, `https://charts.your-repo.com/`, and the chart version with values that match your specific environment setup and Helm chart configuration.

Running this Pulumi program creates a new cluster if necessary, sets up the configuration, and finally deploys the Helm chart to your OKE cluster. To check the status of the deployed Helm release or to access the service, you can use the `turborepoEndpoint` value which gets exported from the Pulumi program.