Deploy the mautrix-syncproxy helm chart on Azure Kubernetes Service (AKS)

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Pulumi · Accepted Answer

To deploy the `mautrix-syncproxy` Helm chart on Azure Kubernetes Service (AKS), we'll follow these steps:

1. **Setting up an AKS Cluster**: You'll create an instance of Azure Kubernetes Service in which your applications will run. This step involves defining the cluster configuration, such as the number of nodes and node sizes.

2. **Deploying the Helm Chart**: Once you have your Kubernetes cluster running, you can deploy the `mautrix-syncproxy` Helm chart into the cluster. This is done using Pulumi's Helm support, which allows you to deploy Helm charts directly from your Pulumi program.

Here's a detailed Pulumi program, written in TypeScript, that defines these resources:

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

// Step 1: Create the AKS Cluster
// Define the AKS cluster using pulumi/azure provider.
const aksCluster = new azure.containerservice.KubernetesCluster("aksCluster", {
    // Provide the required AKS configuration.
    // More details on configuration options at https://www.pulumi.com/registry/packages/azure/api-docs/containerservice/kubernetescluster/
    resourceGroupName: azureResourceGroupName,
    defaultNodePool: {
        name: "aksagentpool",
        nodeCount: 1,
        vmSize: "Standard_B2s", // choose VM size according to your needs,
    },
    dnsPrefix: "aksk8s",
    linuxProfile: {
        adminUsername: "aksuser",
        sshKey: {
            keyData: sshPublicKey, // SSH public key for secure access to the cluster
        },
    },
    servicePrincipal: {
        clientId: azureClientId, // Azure AD Application ID
        clientSecret: azureClientSecret, // Azure AD Application Secret
    },
});

// Export the Kubeconfig so you can access the Kubernetes cluster created by AKS
export const kubeconfig = aksCluster.kubeConfigRaw;

// Step 2: Deploy the mautrix-syncproxy Helm chart
// Define a Pulumi Kubernetes provider that points to the AKS instance.
const k8sProvider = new k8s.Provider("k8s", {
    kubeconfig: kubeconfig,
});

// Deploy the Helm chart using pulumi/kubernetes provider.
const mautrixSyncproxyChart = new k8s.helm.v3.Chart("mautrix-syncproxy", {
    chart: "mautrix-syncproxy",
    // Assuming the Helm chart is hosted in a Helm repository, we need to provide the repository URL.
    // If the chart is local, provide the path to the chart directory instead.
    repo: "repository_url", // Specify the Helm chart repository URL here
    version: "chart_version", // Specify the version of the chart you want to deploy
    // Define chart values in this object.
    // Example: values: { service: { type: "ClusterIP" } },
    // These should match the configurable values in the Helm chart
}, { provider: k8sProvider });

// Export the Endpoints if needed
export const mautrixSyncproxyEndpoint = mautrixSyncproxyChart.getResourceProperty("v1/Service", "mautrix-syncproxy-service", "status").apply(status => status.loadBalancer.ingress[0].ip);
```

In this TypeScript code:

- We use the `@pulumi/azure` package to define the AKS cluster with a single node pool (`defaultNodePool`). The `vmSize` can be changed according to your needs, and you need to fill in the `resourceGroupName`, `sshPublicKey`, `azureClientId`, and `azureClientSecret`. You can obtain these from your Azure portal.
  
- The AKS `kubeconfig` is exported allowing you to interact with the cluster using `kubectl` or other Kubernetes tooling.

- We use the `@pulumi/kubernetes` package to create a Kubernetes provider that is bound to the newly created AKS cluster using the `kubeconfig` from our `aksCluster` resource.

- Finally, we deploy the `mautrix-syncproxy` Helm chart to the cluster using the Kubernetes provider. You need to specify the Helm chart's repository URL and the desired chart version in the `repo` and `version` fields.

Don't forget to replace placeholder values in the code (like `repository_url`, `chart_version`, etc.) with actual values that you would like to use. Ensure that the AKS cluster has been created and is in a running state before deploying the Helm chart.

After you set up your Pulumi stack and run `pulumi up`, the program will provision the necessary resources in Azure, and deploy the `mautrix-syncproxy` Helm chart onto the AKS cluster.