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

Question

Pulumi · Accepted Answer

To deploy the BaGet Helm Chart on Oracle Kubernetes Engine (OKE), you'll need to follow these steps:

1. **Set up OKE**: You need to have an existing OKE cluster. Ensure you have access credentials for your Kubernetes cluster and that your `kubectl` is configured to interact with your cluster.

2. **Install Helm**: Helm is a package manager for Kubernetes, which allows you to define, install, and upgrade complex Kubernetes applications. Helm uses charts, which are packages of pre-configured Kubernetes resources.

3. **Add Helm Chart**: In this step, you'll add the repository that contains the BaGet Helm Chart and then install it to your cluster.

4. **Configure and Deploy**: Before deploying the chart, you may need to configure certain values, like service type, ingress settings, or persistent storage. Once configured, deploy the helm chart to your OKE cluster.

Below is the Pulumi program written in TypeScript that will perform these steps.

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

// This example assumes you have a preconfigured OKE cluster.
// In Pulumi you can instantiate the cluster using the `oci.ContainerEngine.Cluster` resource.

// First, create a provider so Pulumi knows how to communicate with your Kubernetes cluster.
const provider = new k8s.Provider("provider", {
    kubeconfig: pulumi.output(/** Insert your OKE kubeconfig here. It typically might come from the OCI provider setup or a secret store. */),
});

// Add the Helm repository that contains the BaGet chart.
const bagetRepo = "https://loic-sharma.github.io/BaGet/";

// Now, install the BaGet Helm Chart.
const bagetChart = new k8s.helm.v3.Chart("baget-chart", {
    chart: "baget",
    version: "0.1.0-preview1", // Specify the version of the Helm Chart you wish to deploy.
    fetchOpts: {
        repo: bagetRepo,
    },
    // If needed, you can add any configuration options for BaGet here using the `values` property.
}, { provider });

// Export the resulting chart's endpoint for easy access.
export const endpoint = bagetChart.getResourceProperty("v1/Service", "baget-chart-baget", "status").apply(status => {
    // If LoadBalancer is the service type, then we should get the public IP.
    if (status.loadBalancer?.ingress?.length === 1) {
        return status.loadBalancer.ingress[0].ip || status.loadBalancer.ingress[0].hostname;
    }
    // Otherwise, if it's a different service type (like NodePort or ClusterIP), handle accordingly or provide instructions.
});

```

In this program:

- We import the necessary Pulumi Kubernetes library to create resources within our cluster.
- Next, we set up a Kubernetes provider for Pulumi with the configuration necessary to communicate with our Oracle Kubernetes Engine cluster.
- We specify the Baget Helm chart repository and version we wish to use.
- We install the BaGet Helm Chart into our Kubernetes cluster using the `k8s.helm.v3.Chart` resource.
- We export the endpoint where we can reach the deployed BaGet instance. This depends on the configuration of your Kubernetes service (LoadBalancer, NodePort, ClusterIP). If your Helm chart creates a LoadBalancer, this will be the externally available IP or hostname.

Please replace the placeholder in the pulumi.output() call with your actual kubeconfig or reference to your kubeconfig stored securely (such as in Pulumi's secret store or another secrets management service).

This chart installation will create a new instance of BaGet on your cluster, and you can then manage package feeds using that instance.

Keep in mind that BaGet might require additional configuration, such as setting up a database or persistent storage options, which you would include in the `values` property when creating the `bagetChart` resource. Adjust them according to your needs.