Deploy the hydra-maester helm chart on Oracle Kubernetes Engine (OKE)

Question

Pulumi · Accepted Answer

Hydra-maester is a Kubernetes controller that manages OAuth 2.0 clients in your Hydra installation, which is typically deployed as part of an ORY Hydra installation for security reasons. To deploy the hydra-maester Helm chart on an Oracle Kubernetes Engine (OKE) cluster, we'll follow these general steps:

1. Set up the necessary prerequisites such as an OCI Container Repository for images, and an OKE cluster for deployment.
2. Use the `kubernetes.helm.v3.Chart` resource from Pulumi's Kubernetes provider to deploy the hydra-maester Helm chart to OKE.

Below is a detailed Pulumi program written in TypeScript that demonstrates how to deploy the hydra-maester Helm chart to an OKE cluster.

I'll also include comments explaining each part of the process:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as oci from "@pulumi/oci"; // Import the Oracle Cloud Infrastructure (OCI) Pulumi provider.
import * as k8s from "@pulumi/kubernetes"; // Import the Kubernetes Pulumi provider.

// The following code assumes you have already set up your OCI provider configuration and have
// the necessary OKE cluster created and configured in your Pulumi setup.

// Define the OKE Cluster details. Replace `okeClusterId` with your actual cluster Ocid.
const okeClusterId = "ocid1.cluster.oc1..exampleuniqueID";

// Retrieve the Kubernetes configuration from the OKE cluster to interact with it.
const kubeconfig = oci.containerengine.getClusterKubeconfig({
  clusterId: okeClusterId,
});

// Create a Kubernetes provider instance using the kubeconfig from OKE.
const k8sProvider = new k8s.Provider("okeK8sProvider", {
  kubeconfig: kubeconfig.kubeconfig,
});

// Define the settings for the hydra-maester Helm chart. Check the official helm chart for the full list of configurable values.
const hydraMaesterChart = new k8s.helm.v3.Chart("hydra-maester", {
  chart: "hydra-maester",
  version: "0.0.1", // Specify the chart version you want to deploy
  fetchOpts: {
    repo: "https://k8s.ory.sh/helm/charts", // The ORY Helm chart repository URL
  },
  // Provide any specific values you need for the hydra-maester chart deployment.
  values: {
    image: {
      tag: "v0.0.1", // The image version for hydra-maester
    },
    // ... include additional configurations here
  },
}, { provider: k8sProvider });

// Export the status of the deployed Helm chart.
export const hydraMaesterStatus = hydraMaesterChart.status;

```

This Pulumi program will deploy the hydra-maester helm chart to your OKE cluster. Three main sections consist of:

1. Importing the necessary Pulumi packages.
2. Retrieving the Kubernetes configuration from your OKE cluster.
3. Declaring a new instance of a Helm chart resource, which will deploy hydra-maester.

Note that you need to replace the `okeClusterId` with the actual OCID of your OKE cluster and configure the `values` to match your preferred configuration for the hydra-maester deployment.

After saving this code into a TypeScript `.ts` file, you can deploy it by running `pulumi up` from your command line in the same directory as your code. This command will execute the Pulumi program, create all resources, and deploy hydra-maester on your OKE cluster.