Deploy the stakater-sonarqube-scanner helm chart on Linode Kubernetes Engine

Question

Pulumi · Accepted Answer

To deploy the stakater-sonarqube-scanner helm chart on Linode Kubernetes Engine (LKE) using Pulumi, you will need to perform several steps:

1. Create a Kubernetes cluster on Linode using the Pulumi Linode provider. 
2. Configure the `kubeconfig` to interact with the Kubernetes API server for the newly created cluster.
3. Install the Helm chart for SonarQube Scanner using Pulumi's Kubernetes provider.

Below is a Pulumi program written in TypeScript that defines the necessary resources for creating a Linode Kubernetes cluster and deploying the stakater-sonarqube-scanner Helm chart on it.

Make sure you have Pulumi installed and configured with your Linode access token. Additionally, you will need to install the necessary Pulumi packages using npm:

```sh
npm install @pulumi/linode @pulumi/kubernetes
```

Now here's the TypeScript program:

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

// Step 1: Create a Linode Kubernetes Engine (LKE) cluster
const cluster = new linode.LkeCluster("pulumi-sonarqube-cluster", {
    k8sVersion: "1.20", // Specify the desired Kubernetes version
    region: "us-central", // Specify the Linode region for the cluster
    nodePools: [{
        type: "g6-standard-2", // Specify the type of node
        count: 2, // Specify the number of nodes in the node pool
    }],
});

// Step 2: Export the kubeconfig for the LKE cluster
export const kubeconfig = cluster.kubeconfig;

// Once the cluster is created and the kubeconfig is exported,
// ~/.kube/config can be updated to match the kubeconfig of the new cluster,
// which allows kubectl and other Kubernetes tools to interact with the cluster.

// Step 3: Deploy the Helm chart for SonarQube Scanner using the kubernetes provider
const sonarQubeScannerRelease = new kubernetes.helm.v3.Release("sonarqube-scanner", {
    // Use the exported kubeconfig from the LKE cluster
    provider: new kubernetes.Provider("lke-k8s", {
        kubeconfig: cluster.kubeconfig,
    }),
    chart: "sonarqube-scanner",
    version: "1.0.0", // Specify the chart version if necessary
    namespace: "default", // Specify the namespace for the Helm release
    repositoryOpts: {
        repo: "https://charts.stakater.com", // URL of the chart repository
    },
}, { dependsOn: [cluster] });

// Export the SonarQube Scanner Helm release's status
export const sonarQubeScannerStatus = sonarQubeScannerRelease.status;
```

This program performs the following actions:

- It creates an LKE cluster with the desired Kubernetes version and node specifications.
- It exports the kubeconfig of the newly created cluster, which you can use to configure `kubectl` to interact with the cluster.
- It deploys the stakater-sonarqube-scanner Helm chart using Pulumi's Kubernetes provider, ensuring that it interacts with the cluster that was previously created.

After you've written this program in a file (e.g., `index.ts`), you can create these resources with Pulumi CLI commands:

```sh
pulumi up
```

The `pulumi up` command will prompt you to confirm the deployment after showing you a preview of the resources that will be created.

Remember that deploying cloud resources with Pulumi may result in charges from the cloud provider, so ensure you're aware of the potential costs associated with Linode's Kubernetes services and resources that you deploy.