Deploy the yopass helm chart on Azure Kubernetes Service (AKS)

Question

Pulumi · Accepted Answer

To deploy the Yopass Helm chart on Azure Kubernetes Service (AKS), you'll need to create an AKS cluster first and then deploy the Helm chart into it. The following program in TypeScript using Pulumi will guide you through the steps to set up the AKS cluster and then deploy the Yopass application.

Before you run the Pulumi program, make sure that you have the Pulumi CLI installed and configured for use with Azure. Now let's break down the steps:

1. Create an Azure Resource Group: A resource group is a container that holds related resources in Azure. We'll need one to organize the resources for our AKS cluster.
2. Create an AKS Cluster: We'll define the properties of the AKS cluster, like the number of nodes and the node size.
3. Deploy the Yopass Helm Chart: Once the AKS cluster is up and running, we'll deploy the Yopass application using a Helm chart. Helm charts are packages of pre-configured Kubernetes resources.

Here's the Pulumi program that does all of this:

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

// Step 1: Create an Azure Resource Group.
const resourceGroup = new azure.core.ResourceGroup("aksResourceGroup", {
    location: "East US", // You can choose the location that's best for you.
});

// Step 2: Create the AKS Cluster.
const aksCluster = new azure.containerservice.KubernetesCluster("aksCluster", {
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    defaultNodePool: {
        name: "agentpool",
        nodeCount: 2,
        vmSize: "Standard_DS2_v2",
    },
    dnsPrefix: "yopass-k8s", // Ensure this is unique.
    linuxProfile: {
        adminUsername: "adminuser",
        sshKey: {
            keyData: "ssh-rsa ...", // Replace with your SSH public key.
        },
    },
    servicePrincipal: {
        clientId: "YOUR_SP_ID", // Replace with your Service Principal ID.
        clientSecret: "YOUR_SP_SECRET", // Replace with your Service Principal Secret.
    },
});

// Export the Kubeconfig.
export const kubeconfig = aksCluster.kubeConfigRaw;

// Step 3: Deploy the Yopass Helm Chart.
const yopassChart = new kubernetes.helm.v3.Chart("yopass", {
    chart: "yopass",
    version: "10.0.0", // Specify the version of the chart you wish to deploy.
    fetchOpts: {
        repo: "https://charts.yopass.se/", // This is the Helm repository containing the Yopass chart.
    },
}, { provider: new kubernetes.Provider("k8s-provider", { kubeconfig: aksCluster.kubeConfigRaw }) });

// Export the front-end address of Yopass.
export const frontendService = yopassChart.getResourceProperty("v1/Service", "yopass-frontend", "status");
```

In this program, replace the placeholders `YOUR_SP_ID` and `YOUR_SP_SECRET` with the actual values of the Azure Service Principal that Pulumi will use to create resources on your behalf. You'll also need to provide your SSH public key to securely SSH into the nodes if necessary.

This Pulumi program will perform the following actions:
- Provision an Azure Resource Group.
- Create an AKS cluster with the necessary properties (like node size and count) within the resource group.
- Deploy the Yopass application using a Helm chart from the Yopass Helm repository.

To run this program, save it to a file `index.ts`, and then execute the following commands in your terminal:

```bash
pulumi up
```

When prompted, review the changes Pulumi proposes and then choose to proceed with the deployment. pulumi will print out any exports you've defined, like the `kubeconfig`.

After running this program, you should have a running instance of Yopass on your AKS cluster. You can interact with and manage this instance using `kubectl` by configuring it with the `kubeconfig` that Pulumi provides you after the successful deployment of the AKS cluster.