Deploy the kube-janitor helm chart on Oracle Kubernetes Engine (OKE)

Question

Pulumi · Accepted Answer

To deploy the kube-janitor Helm chart on Oracle Kubernetes Engine (OKE) with Pulumi, you will perform the following steps:

1. Set up an Oracle Kubernetes Engine (OKE) cluster if you don't have one already.
2. Use Pulumi's `kubernetes` package to install the kube-janitor Helm chart on your OKE cluster.

Let's start with an example that assumes you already have an OKE cluster running. In this example, we will deploy the kube-janitor Helm chart using Pulumi's Kubernetes provider. To achieve this, make sure you have the necessary Pulumi packages, Helm CLI installed, and configured kubeconfig for accessing your OKE cluster.

First, install the necessary Pulumi package for Kubernetes by running the following commands:

```shell
$ npm install @pulumi/kubernetes
```

Next, ensure your kubeconfig is set up correctly to interact with your OKE cluster. Pulumi uses the kubeconfig file to authenticate with the Kubernetes cluster.

Below is the complete TypeScript program that will deploy the kube-janitor Helm chart to your OKE cluster:

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

// You should already have a kubeconfig file configured to interact with your
// Oracle Kubernetes Engine (OKE) cluster. Pulumi will use this to deploy resources to the cluster.
const kubeconfig: string = process.env.KUBECONFIG;

// Create a provider to interact with your OKE cluster.
const provider = new k8s.Provider('oke-k8s', {
    kubeconfig: kubeconfig,
});

// Define the kube-janitor Helm chart deployment.
const kubeJanitorChart = new k8s.helm.v3.Chart('kube-janitor', {
    chart: 'kube-janitor',
    version: '1.0.0', // Specify the version of the chart you want to deploy, if applicable.
    // The name of the OKE cluster namespace where you want to deploy the chart.
    // Change `"default"` to the name of your desired namespace if needed.
    namespace: 'default',
    fetchOpts: { // These options are used to configure the Helm fetch operation.
        repo: 'https://example.com/helm-charts', // Replace with the Helm chart repository URL.
    },
}, { provider: provider });

// Export any relevant URLs, status, or other outputs.
export const kubeJanitorChartStatus = kubeJanitorChart.status;
```

Make sure to replace the placeholders such as `https://example.com/helm-charts` with the actual repository URL of your kube-janitor Helm chart.

This program creates a new Helm chart resource using Pulumi's Kubernetes provider. The `kubeJanitorChart` defines the Helm chart we wish to deploy. We specify the chart name `kube-janitor` and the version, which corresponds to the Helm chart you want to use.

The `fetchOpts` object includes the `repo`, which should point to the repository where your Helm chart is located.  The `namespace` field within the `Chart` constructor specifies the Kubernetes namespace where the chart will be deployed. If you don't specify a namespace, Pulumi will deploy it to the default namespace.

Once you have this Pulumi program, you can run `pulumi up` in your terminal to execute the deployment. Pulumi will reach out to your OKE cluster and deploy the kube-janitor Helm chart.

Remember to ensure that your Pulumi program is within a Pulumi project. If you don't already have a project, create one with `pulumi new` and select the appropriate template. The project will include a `Pulumi.yaml` file that specifies the details of the project, and you can place your TypeScript program inside an `index.ts` file.

Keep in mind that you might need to configure additional properties based on your requirements and the specific configuration the kube-janitor Helm chart exposes to customize its deployment. You can do this through the `values` property of the Chart class, which allows you to specify custom Helm values.