Deploy the teleport-plugin-pagerduty helm chart on Azure Kubernetes Service (AKS)

Question

Pulumi · Accepted Answer

To deploy the `teleport-plugin-pagerduty` Helm chart on Azure Kubernetes Service (AKS), we'll perform the following steps:

1. Set up an AKS cluster: We will create an Azure Kubernetes Service (AKS) cluster resource using Pulumi's `azure-native` package.
2. Install the Helm chart: Once the AKS cluster is provisioned, we will deploy the `teleport-plugin-pagerduty` Helm chart into our AKS cluster using Pulumi's `kubernetes` package.

Before you proceed, make sure you have:
- Pulumi CLI installed and configured for Azure access.
- Azure CLI installed and logged in (`az login`) to your Azure account.
- Helm CLI installed if you need to customize chart values or inspect Helm charts.
- Configured your Pulumi program to use the required secrets and configuration values where needed.

Now let's create our Pulumi program in TypeScript.

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

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

// Create an Azure AD Service Principal for the AKS cluster
const adApp = new azuread.Application("aks");
const adSp = new azuread.ServicePrincipal("aksSp", { applicationId: adApp.applicationId });
const adSpPassword = new azuread.ServicePrincipalPassword("aksSpPassword", {
    servicePrincipalId: adSp.id,
    value: "PASSWORD_HERE", // Replace with a secure password
    endDate: "2099-01-01T00:00:00Z",
});

// Create the AKS cluster
const cluster = new azure.containerservice.KubernetesCluster("myAksCluster", {
    resourceGroupName: resourceGroup.name,
    dnsPrefix: pulumi.interpolate`${resourceGroup.name}-kube`,
    linuxProfile: {
        adminUsername: "adminuser",
        sshKey: {
            keyData: "SSH_RSA_PUBLIC_KEY", // Replace with your SSH public key
        },
    },
    servicePrincipal: {
        clientId: adApp.applicationId,
        clientSecret: adSpPassword.value,
    },
    agentPoolProfiles: [{
        name: "agentpool",
        count: 2,
        vmSize: "Standard_DS2_v2",
    }],
    kubernetesVersion: "1.20.9",
});

// Export the cluster's kubeconfig
export const kubeconfig = cluster.kubeConfigRaw;

// Deploy the teleport-plugin-pagerduty Helm chart into the AKS cluster
const teleportPagerdutyChart = new k8s.helm.v3.Chart("teleport-plugin-pagerduty-chart", {
    chart: "teleport-plugin-pagerduty",
    // You can specify the repository if the chart is not in the default Helm repo,
    // e.g., `repo: "https://charts.example.com/"`
    version: "0.1.0", // Replace with your desired chart version
    // You can use `values` to override default chart values
    // values: { /* Your custom chart values here */ },
}, { provider: new k8s.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigRaw }) });

```

In the above program:

- Replace `"PASSWORD_HERE"` with a secure password for your AKS Service Principal.
- Replace `"SSH_RSA_PUBLIC_KEY"` with your SSH public key to enable SSH access to AKS nodes.
- The AKS cluster configuration sets up a default node pool with 2 nodes using `Standard_DS2_v2` VMs.
- The Helm chart deployment creates a new instance of the `teleport-plugin-pagerduty` Helm chart.
- You might need to specify the `repo` and `version` in the `Chart` args based on where the Helm chart is hosted and the version you want to deploy.
- If you need to customize the Helm chart, use the `values` argument to override the default values provided by the Helm chart.
- `kubeconfig` is exported to allow you to access the Kubernetes cluster using tools like `kubectl`.
- A new instance of Pulumi's Kubernetes provider is created dynamically using the kubeconfig of the deployed cluster.

After running this Pulumi program with `pulumi up`, your AKS cluster will be ready and the `teleport-plugin-pagerduty` Helm chart will be deployed to your cluster. You can then manage your Helm chart's deployed services through Kubernetes management tools such as `kubectl` using the exported kubeconfig.

Remember to take care of your Kubernetes cluster's security settings, integrate it into your network, and configure cloud monitoring and logging as required for your setup.