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

Question

Pulumi · Accepted Answer

To deploy the Taiga Helm chart on Oracle Kubernetes Engine (OKE), we will perform the following steps:

1. Set up connections to OKE, by having an OKE cluster ready for deployments.
2. Use Pulumi's Kubernetes package to interact with the Kubernetes cluster and deploy resources through Helm charts.
3. Deploy the Taiga application on the Kubernetes cluster using the Helm chart.

Here's a detailed explanation of the resources used:

- `kubernetes.helm.v3.Chart`:
  We will use the `Chart` resource from the `kubernetes` package to deploy the Helm chart onto our Kubernetes cluster. This resource represents a Helm chart in a Pulumi program and allows us to deploy, configurable and version-controlled Kubernetes resources.

- `oci.ContainerEngine.Cluster`:
  Although we don't have a direct snippet for this, Oracle Cloud Infrastructure (OCI) provides a Pulumi resource for OKE clusters which is typically named `oci.ContainerEngine.Cluster` or similar. This would be necessary if you were creating the OKE cluster from scratch using Pulumi. However, since we assume the OKE cluster is already provisioned, we will just connect to it.

Please ensure that you have the necessary OCI credentials and configuration to access the OKE cluster.

Now, let's move to the TypeScript Pulumi program. Make sure you have Pulumi installed and configured to use with the Oracle Kubernetes Engine (OKE). You will need the `pulumi` and `@pulumi/kubernetes` packages installed in your project.

Below is the code that will deploy the Taiga Helm chart to your OKE cluster:

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

// Assuming you have a pre-configured OKE Kubernetes cluster and context set in your `kubeconfig` file.
// You need to point Pulumi toward the correct cluster using the kubeconfig.
const kubeconfig = '<Your OKE kubeconfig>';

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

// Name of the Helm chart for Taiga.
const chartName = 'taiga';

// The Helm release installs the Taiga chart.
const taigaRelease = new k8s.helm.v3.Chart(chartName, {
    chart: 'taiga',
    version: '6.0.0', // Specify the version of the chart you want to deploy. Check the chart repo for the exact version number.
    fetchOpts: {
        repo: 'https://helm.taiga.io', // The repository where the Taiga Helm chart is located.
    },
}, { provider: provider });

// Export the base URL of the Taiga frontend to access it after deployment.
export const taigaFrontendUrl = taigaRelease.getResourceProperty(
    'v1/Service',
    `${chartName}-taiga-front`,
    'status',
    'loadBalancer.ingress[0].hostname', // or 'ip' based on your cloud provider and configuration.
);
```

In this program, we instantiate a Kubernetes provider by providing it with the kubeconfig of our OKE cluster. This allows Pulumi to communicate with our OKE instance. Later, we create a Helm chart resource and specify the name of the chart (`taiga`), the version, and the repository URL. You'll need to replace certain values like `kubeconfig` and chart `version` according to your setup.

Once the application is deployed, the program exports the URL of the Taiga frontend. You can then use this URL to access the Taiga UI in your web browser.

After this code is applied by running `pulumi up` in your command line (where your Pulumi project is initialized), Pulumi takes care of deploying the specified Helm chart onto your Kubernetes cluster managed by OKE.