Deploy the hlf-peer helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy a Helm chart for a Hyperledger Fabric peer (hlf-peer) on Kubernetes with Pulumi, you'll need to follow these steps:

1. Have access to a Kubernetes cluster where you will deploy the Helm chart.
2. Install and set up the Pulumi CLI and configure it with your Kubernetes cluster context.
3. Have the Helm chart information for the hlf-peer, like the chart version, repository, and any values you'd like to configure.

We'll use the `kubernetes.helm.v3.Chart` resource from the Pulumi Kubernetes provider to deploy the Helm chart. This resource allows us to deploy Helm charts similarly to how we would use `helm install` or `helm upgrade`. You can specify the chart's repository, version, values, and other configurations within your Pulumi program.

Below is a program written in TypeScript that deploys the hlf-peer Helm chart into a Kubernetes cluster. Ensure you have the necessary information on the Helm chart, such as the chart's repository URL and any specific values you want to customize.

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

// Initialize a Pulumi Kubernetes provider by picking up the current cluster context from the local machine.
const k8sProvider = new kubernetes.Provider("k8s-provider", {
  kubeconfig: pulumi.output(kubernetes.types.input.core.v1.ConfigFile.getKubeconfig({})).apply(JSON.stringify),
});

// Define the settings for the hlf-peer Helm chart.
// Replace the 'repo' and 'version' with actual values that are applicable to the hlf-peer chart you wish to deploy.
const hlfPeerChart = new kubernetes.helm.v3.Chart("hlf-peer-chart", {
  chart: "hlf-peer",
  version: "chartVersion", // Specify the chart version (e.g., "1.0.0")
  fetchOpts: {
    repo: "https://hlf-peer-chart-repository-url/", // Replace with the chart's repository URL
  },
  values: {
    // Specify any custom configuration values here.
    // For example (change the following values according to your needs):
    peer: {
      mspID: "Org1MSP",
      domain: "org1.example.com",
    },
    // Add more configuration values as needed
  },
}, { provider: k8sProvider });

// Export the resulting chart's status and resources
export const hlfPeerChartStatus = hlfPeerChart.status;
export const hlfPeerChartResources = hlfPeerChart.getResource("v1/Secret", "hlf-peer-secrets"); // As an example, if you expect to create secrets

```

**Explanation of the program:**

- We import the necessary Pulumi libraries, `@pulumi/pulumi` for the Pulumi SDK and `@pulumi/kubernetes` for the Kubernetes provider that interacts with the cluster.
- We create an instance of the Kubernetes provider, which reads the kubeconfig from your local machine (assuming you have `kubectl` configured and context set to interact with your cluster).
- We declare the `hlfPeerChart` using `kubernetes.helm.v3.Chart`, specifying the name of the Helm chart, its version, repository, and custom values. Be sure to replace the placeholder values with actual ones that correspond to the hlf-peer Helm chart you are using.
- We export the status and any relevant resources created by the Helm chart so that you can access them easily, for example, through `pulumi stack output`.

This program is a starting point and can be adapted for more complex configurations, such as providing more custom values or handling dependencies between Kubernetes resources.

Before running this program, make sure your Pulumi stack is selected and set up (`pulumi stack init` and `pulumi stack select`). When you're ready to deploy, run `pulumi up` from the command line in the directory where your Pulumi TypeScript program is located. The Pulumi CLI will interpret the program, show you a preview of the resources that will be created, and prompt you to confirm the deployment. After confirmation, the Helm chart will be deployed onto the Kubernetes cluster.