Deploy the stakater-comment-on-pr helm chart on Rancher

Question

Pulumi · Accepted Answer

Deploying a Helm chart on a Rancher-managed Kubernetes cluster involves a few steps. You'll need to set up the Rancher provider with Pulumi, which allows you to interact with Rancher's API. Then, you can use Pulumi to deploy Helm charts to the Kubernetes cluster that is managed by Rancher.

First, you'll need to install the `@pulumi/rancher2` package and any other necessary Pulumi packages.

Here's a high-level overview of the steps we'll take in the Pulumi program:

1. Set up the Rancher provider to authenticate with your Rancher server.
2. Identify or create a Kubernetes cluster managed by Rancher where the Helm chart will be deployed.
3. Deploy the `stakater-comment-on-pr` Helm chart to the selected Kubernetes cluster.

Now let's go through the Pulumi TypeScript program to achieve this:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as rancher2 from "@pulumi/rancher2";
import * as k8s from "@pulumi/kubernetes";

// Initialize the Rancher provider with credentials to interact with the Rancher API.
const rancherProvider = new rancher2.Provider("myRancherProvider", {
    apiURL: "https://your-rancher-api-url",
    accessKey: "yourRancherAccessKey",
    secretKey: "yourRancherSecretKey",
});

// If you have an existing Kubernetes cluster managed by Rancher, you can obtain its id like this:
const myCluster = rancher2.getCluster({
    name: "name-of-your-cluster-in-rancher",
}, { provider: rancherProvider });

// Now that we have a reference to the cluster, let's set up the Kubernetes provider.
// The kubeconfig can be obtained from the Rancher API or the Rancher UI.
const k8sProvider = new k8s.Provider("myK8sProvider", {
    kubeconfig: myCluster.then(cluster => cluster.kubeConfig),
});

// Deploy the Helm chart to the cluster.
// Note: You may need to add the repository where stakater-comment-on-pr chart is located before this step.
const helmChart = new k8s.helm.v3.Chart("stakater-comment-on-pr", {
    chart: "stakater-comment-on-pr",
    // You may need to specify the repository option if the chart is not in the default repo.
    // repositoryOpts: {
    //    repo: "https://charts.example.com/"
    // },
    // Specify the namespace and any custom values for the Helm chart.
    namespace: "default",
    values: {
        // ... specify any values required by the chart here
    },
}, { provider: k8sProvider });

// Export the status of the deployed Helm chart.
export const helmChartStatus = helmChart.status;
```

This Pulumi code snippet sets up providers for both Rancher and Kubernetes and then deploys a Helm chart to a Kubernetes cluster managed by Rancher.

Please replace `"https://your-rancher-api-url"`, `"yourRancherAccessKey"`, and `"yourRancherSecretKey"` with your Rancher API URL, access key, and secret key respectively. Additionally, you will need to specify the actual chart values required for the `stakater-comment-on-pr` Helm chart.

For the `kubeconfig`, if you are not using the code to obtain it programmatically as shown, you'll need to input your kubeconfig that provides administrative access to the cluster.

Lastly, if the Helm chart `stakater-comment-on-pr` is hosted in a custom Helm repository, you'll need to uncomment the `repositoryOpts` section and replace it with the correct URL to your Helm repository.

Keep in mind that deploying applications into Kubernetes clusters should be done carefully to ensure that the chart's configurations match your cluster's setup and policies (e.g., network policies, RBAC). Make sure to review the Helm chart's values and customize them according to your needs before deploying.