Deploy the tyk-bootstrap helm chart on Google Kubernetes Engine (GKE)

Question

Pulumi · Accepted Answer

To deploy the `tyk-bootstrap` Helm chart on Google Kubernetes Engine (GKE) using Pulumi, you need to perform the following high-level steps:

1. Set up a GKE cluster.
2. Configure Kubernetes provider to connect to the newly created GKE cluster.
3. Deploy the `tyk-bootstrap` Helm chart.

Below you'll find a detailed Pulumi program written in TypeScript that accomplishes these steps.

First, you create the GKE cluster using the `gcp.container.Cluster` resource. This will be the Kubernetes cluster where Tyk will be deployed.

After the GKE cluster is provisioned, you need to configure the Kubernetes provider. This provider is responsible for connecting to the Kubernetes cluster so that you can deploy resources onto it.

Finally, use the `k8s.helm.v3.Chart` resource to deploy the `tyk-bootstrap` Helm chart. Note that you might need to specify the correct Helm chart repository URL and possibly the version of the Helm chart that you'd like to deploy, depending on where the `tyk-bootstrap` chart is hosted and its available versions.

Here's how the program looks:

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

// Step 1: Create a GKE cluster
const cluster = new gcp.container.Cluster('tyk-gke-cluster', {
    initialNodeCount: 2,
    minMasterVersion: "latest", // Specify the minimum master version
    nodeVersion: "latest", // Specify the node version
    nodeConfig: {
        machineType: 'n1-standard-1', // Specify the machine type
        oauthScopes: [ // Set the necessary OAuth scopes for GKE
            "https://www.googleapis.com/auth/cloud-platform",
            "https://www.googleapis.com/auth/devstorage.read_only",
            "https://www.googleapis.com/auth/logging.write",
            "https://www.googleapis.com/auth/monitoring",
        ],
    },
});

// Step 2: Configure the Kubernetes provider to connect to the GKE cluster
const k8sProvider = new k8s.Provider('k8s-provider', {
    kubeconfig: cluster.kubeConfigRaw,
});

// Step 3: Deploy the tyk-bootstrap Helm chart onto the GKE cluster
// Make sure you have added the helm repo or have access to it.
const tykBootstrapChart = new k8s.helm.v3.Chart('tyk-bootstrap', {
    chart: 'tyk-bootstrap',
    // If needed, specify the chart version and repository URL
    // version: '1.0.0',
    // repositoryOpts: {
    //     repo: 'http://charts.example.com/',
    // },
}, { provider: k8sProvider });

// Export the Kubeconfig and the GKE cluster name
export const kubeConfig = cluster.kubeConfigRaw;
export const clusterName = cluster.name;
```

This program sets up a GKE cluster, configures the Kubernetes provider, and deploys the `tyk-bootstrap` Helm chart to the cluster. The `export` statements at the end make the kubeconfig and the cluster name available as stack outputs. You can access these after deployment with the Pulumi CLI using `pulumi stack output <outputName>`.

The Helm chart deployment section is commented out as you would typically need to know the exact location of the Helm repository to include the `repositoryOpts`. If such details are provided or known, you would uncomment and fill in these details accordingly.

Make sure that before running this Pulumi program, you have authenticated with GCP and set up your Pulumi stack with the appropriate configuration. Additionally, ensure that the required Helm chart is available in a repository that your Kubernetes cluster can access. If it's a private repository, you may need to include additional configuration for authentication.