Deploy the sonarqube-scanner helm chart on Azure Kubernetes Service (AKS)

Question

Pulumi · Accepted Answer

To deploy the `sonarqube-scanner` Helm chart on Azure Kubernetes Service (AKS), we'll break down the process into a few key steps:

1. **Set up an AKS cluster**: We'd need an AKS cluster where our Helm chart will be deployed. This involves creating a resource group, defining the AKS cluster specifications, and then provisioning the cluster itself.
2. **Install the Helm chart**: Once we've got the cluster set up, we would use the Pulumi Kubernetes provider to install the `sonarqube-scanner` Helm chart into our AKS cluster.

The core Pulumi resources we are going to use are:
- `ResourceGroup`: To organize related resources in Azure.
- `ManagedCluster`: To create and manage an AKS cluster.
- `Chart`: To represent a Helm chart that can be deployed to a Kubernetes cluster.

Below is the Pulumi program written in TypeScript that accomplishes the steps mentioned. Before running the program, ensure that you have Pulumi installed and configured to access your Azure account. Remember to install the necessary Pulumi Azure and Kubernetes packages in your project by running `npm install @pulumi/azure-native @pulumi/kubernetes`.

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

// Create an Azure Resource Group
const resourceGroup = new azure.resources.ResourceGroup("resourceGroup");

// Create an AKS cluster
const cluster = new azure.containerservice.ManagedCluster("aksCluster", {
    // Replace with desired settings as required
    resourceGroupName: resourceGroup.name,
    agentPoolProfiles: [{
        count: 1, // Number of nodes in Node Pool
        vmSize: "Standard_B2s", // VM size for Nodes
        name: "agentpool" // Name of the Node Pool
    }],
    dnsPrefix: "akscluster", // DNS Prefix for AKS
    kubernetesVersion: "1.18.14", // Specify desired Kubernetes version
});

// Export the kubeconfig
export const kubeconfig = cluster.kubeConfigRaw.apply(kubeconfig => {
    return JSON.stringify(kubeconfig);
});

// Use kubeconfig to create a Kubernetes provider instance
const k8sProvider = new k8s.Provider("k8sProvider", {
    kubeconfig: cluster.kubeConfigRaw,
});

// Deploy the sonarqube-scanner helm chart into the AKS cluster
const sonarqubeScannerChart = new k8s.helm.v3.Chart("sonarqube-scanner", {
    chart: "sonarqube",
    version: "1.0.0", // Specify the desired chart version
    fetchOpts: {
        repo: "https://charts.helm.sh/stable", // Use the correct Helm chart repository URL
    },
}, { provider: k8sProvider });

// Export the frontend IP to access the cluster
export const frontendIp = sonarqubeScannerChart.getResourceProperty("v1/Service", "sonarqube-sonarqube-scanner", "status")
    .apply(status => status.loadBalancer.ingress[0].ip);
```

Once you've written this code in a file like `index.ts`, you can deploy your infrastructure with the command `pulumi up`.

Here's what the program does:
- It first creates an Azure resource group to hold our AKS cluster.
- Then, it provisions an AKS cluster with a single node in the node pool.
- It then sets up a Kubernetes provider using the kubeconfig from the provisioned AKS cluster.
- Finally, it deploys the `sonarqube-scanner` Helm chart from the specified repository to the AKS cluster using the Kubernetes provider.
- It also exports the kubeconfig needed for kubectl to connect to the cluster and the front-end IP to access the SonarQube server once it's up and running.

Please do remember to replace the `chart` and `version` parameters with the correct values for the `sonarqube-scanner` Helm chart you are trying to install, along with the correct Helm repository URL. If "sonarqube-scanner" is actually a custom chart or not located in the official Helm repository, you would need to provide its specific repository URL.

Also, adjust the `resourceGroupName`, `agentPoolProfiles`, `dnsPrefix`, and `kubernetesVersion` parameters to match your specific needs and Azure environment.

The above code abstracts away the intricacy of Azure and Kubernetes APIs behind Pulumi's infrastructure as code approach, making it easy to define, deploy, and version-control your cloud infrastructure alongside your application code.